* * * * *

"But why—why?" Asher almost screamed the words at Lee Wong.

"Petrolia will be our armies, protecting our underground wealth," Lee Wong answered him. "They will be our faithful workers, under no command but mine. For, even Krenski has not mastered the over-control it takes to handle them!

"Gradually, as happened to the field we are now under, all oil fields will go dry. We will be getting the oil from below, and putting it in storage in mother earth. Think, Blaine Asher, what it will mean!" There was a fanatical light in Lee Wong's beady eyes.

"A world without petroleum is a world without power. No oil for fuel; no gasoline, lubricants or by-products of any sort. No airplanes could fly; tanks, tractors, oil-burning trains and ships; mechanical appliances—nothing could run. We now take the oil from America. Later, when our Petrolia have increased and we have devised means of moving them, we will go to all oil-producing countries.

"We will secrete the oil and paralyze the world. Now, in Russia and China and India, our societies are organizing and growing. They will handle the weakened, powerless nations, and I shall be ruler of the universe, surface and beneath, with Krenski to aid me, you see. It it wonderful, is it not? And, knowing what you do, having seen what you have, could you call it impossible?"

Blaine Asher groaned. It was not impossible, he knew. Unreal; monstrous—but never impossible. A region of hideous Petrolia; a world stripped of automotive and mechanical power, its fuel held in the hands of a few, far underground—it was terrible to think of.

And Asher the only one who knew. The only one who could avert such a thing. The fate of an entire world was in his hands. And he would soon die.

Die? No! Blaine Asher swore silently to himself that no power in existence should keep him from destroying these two fiends. It had to be done!

He dared not fail.

* * * * *

"Wonderful, stupendous thing," he forced himself to smile. "I'd like to grasp the hand of the genius who devised and carried out such a wonderful thing."

He took a step toward Lee Wong, right hand extended, his left slipping toward the pocket where his own static gun rested.

Lee Wong extended his own right band. Something in the chill, flint look of Asher's eyes must have warned him. Even as Asher's fingers closed around his hand, he tried to jerk back.

"Destroy him!" he cried out to Krenski.

Asher dropped to one knee, letting his static gun remain in his pocket. His left hand closed around Lee Wong's wrist as the Oriental tried to pull away. Krenski was bringing the heavy, cylinderlike gun up and aiming it at Asher.

Asher twisted on one knee, his teeth gritted, braced to receive the shock from the gun. He jerked Lee Wong's arm down, heaved and came to his feet. Crying out, arms and legs flailing, the Chinaman catapulted toward Krenski—and just at the instant Krenski fired!

The sickening smell of cindered flesh was in Asher's nostrils as he turned and ran back up the main hallway. He glanced back over his shoulder as he ran, and shuddered at the black mass lying at Krenski's feet. Lee Wong was no more. Wide-eyed, the Russian stared at the thing at his feet. Then, with a fiendish shriek, turned and brought the gun into line on the fleeing Asher.

A crackling charge of electricity singed the back of Asher's head as he dove head first around the corner of the hall into the control cavern. He reasoned that Krenski had sent a full charge after him, and hope kindled higher in his breast. For Asher believed his smaller static weapon was as strong as that of the other. At that, it would be a test, and Asher dared not take chances.

* * * * *

He crouched in the door of another hallway, waiting. Cursing, Krenski dashed into the control cavern. Asher brought his gun up and fired. But even as he pulled the trigger, a long tentacle reached from the dark crevice behind him and jerked his arm. His charge snapped by the Russian, warning the other that Asher, too, was dealing with powerful electric rays that meant death should they touch.

Asher yielded to the tug of the slimy, sulphur-smelling tentacle, letting it pull him into the crevice, the charges of Krenski's weapon crackling by him, leaving his skin dry, and a powdery sensation in his mouth.

In the shelter of the crevice, Asher turned his gun upon the Petrolia that gripped him. The tentacles fell away, fading to nothingness before the charges that showed quivery blue in the dark. Like catacombs, one crevice opened into another. Asher darted into the next crevice and edged cautiously toward the control cavern.

The angry buzzing and snapping of Krenski's weapon caused him to duck instinctively, although no deadly charges came his way.

"Oh, God!" he heard the Russian's high-pitched voice, agonized, wailing, "they're coming in—they're coming in!"

A squeaking and slithering, now greater than ever, rose above all other sounds. And Asher realized what Krenski meant. Lee Wong had said that only he could control the Petrolia. They were swarming into the control room now. That was what Krenski was shooting at.

The squeaking sounds came up the crevice in which Asher was and a cold, clammy sweat broke out all over him. He could blast a thousand of them into nothing. But by sheer force, more body than his light static gun could down, they would overwhelm him.

His mind raced swiftly. He remembered the location, out in the control room, of the cage elevator that ran to the surface. It had not been hurt by the glycerine blast that had trapped Asher. The elevator shaft from the control room was cased clear into the cavern floor, and the blast had not jarred this far.

* * * * *

He wheeled and sent another charge of static electricity into the crevice back of him, then lunged out into the control room. It would be his own weapon against Krenski's, and a chance to gain the bottom of the shaft.

Krenski—piled, charred heaps of the Petrolia around him, which had momentarily cleared the attack—was running across the control room. Like a seething wave, the foul Petrolia undulated from every crevice and hallway, coming in to fresh attack. The Russian, terror lending him speed, raced for the cage at the foot of the shaft that led to the surface. At the same time Asher ran out.

Nearly a hundred feet apart, on opposite sides of the cavern, they stopped. Krenski turned his heavy weapon toward Asher at the same time Asher sent his own gun crackling and snapping out blue, fiery flame.

Side-stepping, now crouching, now dodging to this side and that, they fought their strange duel. Asher's right arm was burned, his hair singed from his head, and his body jarred again and again as Krenski touched him. Krenski, groaning through gritted teeth, suffered burns all over his chest and left leg.

As the Petrolia came on, and the lightning play of deadly electric charges continued, Asher made a discovery. He noticed that the rays, or charges, of the two guns, when they met in mid-air, caused blue flame, and that the charge went no farther.

It did it again. The two charges met, crackled to explosion in the air. Krenski, too, noticed it, and he also noticed that the Petrolia were almost upon them again. Coming on in a wave that could not be hurled back.

* * * * *

He looked at Asher, and met the dare in Asher's eyes. Straight at each other, neither moving, they shot their static charges. Neither would move: it was a challenge from Asher that Krenski had to meet. One of them would have to die before the other would be able to gain the cage in the shaft. There could be no compromise, and only one man at a time could go surfaceward. If they continued to dodge and fight, the Petrolia would overwhelm them.

Power against power, they fought it out.

Asher's finger tightened on his trigger release until it seemed the skin would split; then he caused his hand to tremble just enough to make his electric charges cover the space in which Krenski's charges traveled. Hissing, spitting, flashing explosions, giving off sounds and light like big explosions of flash powder, the charges met.

Asher tingled from head to foot, and thrilled to the very marvel of the thing. Two deadly beams of electricity, holding each other off!

In one long, continuous flash, the contact point of the charges began to shift. Closer and closer, as the force of superior charges cleaved through the other, the contact points neared Krenski. He saw death upon him, for in another instant, Asher's charges would hurl his own bolts back upon him. The smaller weapon of Blaine Asher, attracting more static electric currents by reason of having a small attracting battery inside, where the larger gun of the other depended upon magnets for attraction, was triumphing.

Krenski's mustache and light beard singed and curled. He cried out, stepped back, throwing up his arms as death flashed through his body.

* * * * *

His gun playing about him, Asher raced toward the big valves and gates that shut off the drain of the pipe-lines. Burning, reeking of sulphur and burned leather, the Petrolia vanished before him. But, as he turned, the drainage system that was robbing the field shut off. They had blocked his way again!

Too many to blast away altogether, they pressed in. Asher leaped forward, feet kicking, left fist smashing out, static gun crackling as if to tell him that nothing could stop them. Tentacles gripped at him, the foul, stinking smell gagged him. But the squeaks of the Petrolia maddened him.

"Squeak, damn you!" Asher shouted wildly, kicking, shooting and hitting, gaining toward the shaft. "Squeak—for all the damned Things that ever bred below the earth cannot stop one surface man!"

He burned and fought his way through and jumped into the cage as his gun electrocuted two of the Petrolia that tried to weave in after him. As he slammed the door, Asher was conscious that something was happening. He hesitated, just long enough to see the cavern start buckling and caving. The pressure of the oil, now shut off, was filling back toward the surface, creating a mighty pressure downward. The surface wells would produce man's power-fuel once more.

Asher slammed the door, turned on the power, and the cage shot upward.

A half hour later, those waiting on the floor of the derrick above the hole in which Asher had gone down, started. Asher, burned, wounded, blood streaming from his battered body, staggered in and collapsed at their feet.

* * * * *

"I can't believe it! Insane! Impossible! Yet, every well in this field has started producing again! And when we went to that old, abandoned wildcat well, we found the shaft opening! I had it covered up, as you ordered."

R. Briggs Johns paced up and down the laboratory floor, talking to Asher, who had just arisen from his bed, two weeks after he had collapsed at their feet in the derrick. Still bandaged, he was a different Blaine Asher. His face was lined, and the hair next to his scalp nearly snow white.

"I'll be able to do some walking around outside in a few days," Asher declared as he cleaned a test tube and placed it in a rack. "I can locate several wells over that underground storage cavern, and you can recover that oil. But you can't mine this field.

"Twenty years, perhaps, and you can. But it will take that long for those Petrolia to die out. We've got to get the oil out from below to a point where they can no longer spawn. We will apply mining in other fields—but not here!"

"Not here," Johns repeated, shuddering.

"It's up to you to see no one else tries it." Asher lit a cigarette and nodded at Johns. "Get control of the field—anything. Tell the oil men something. But don't tell then the truth. They wouldn't believe you. They would call you raving mad.

"The world does not know. It would not believe. Can we do other than remain silent?"

R. Briggs Johns, sick of thinking of the cavern world and horrible things below them, knew they could not.



Brigands of the Moon

(The Book of Gregg Haljan)

CONCLUSION OF A FOUR PART NOVEL.

By Ray Cummings

CHAPTER XXXIV

The First Encounters



[Sidenote: The besieged Earth-men wage grim, ultra-scientific war with Martian bandits in a last great struggle for their radium-ore—and their lives.]

It seemed, with that first shot from the enemy, that a great relief came to me—an apprehension fallen away. We had anticipated this moment for so long, dreaded it. I think all our men felt it. A shout went up:

"Harmless!"

It was not that. But our building withstood it better than I had feared. It was a flash from a large electronic projector mounted on the deck of the brigand ship. It stabbed up from the shadows across the valley at the foot of the opposite crater-wall, a beam of vaguely fluorescent light. Simultaneously the search-light vanished.

The stream of electrons caught the front face of our main building in a six-foot circle. It held a few seconds, vanished; then stabbed again, and still again. Three bolts. A total, I suppose, of nine or ten seconds.

I was standing with Grantline at a front window. We had rigged an oblong of insulated fabric like a curtain: we stood peering, holding the curtain cautiously aside. The ray struck some twenty feet away from us.

"Harmless!"

The men in the room shouted it with derision. But Grantline swung on them.

"Don't think that!"

An interior signal-panel was beside Grantline. He called the duty-men in the instrument room.

"It's over. What are your readings?"

* * * * *

The bombarding electrons had passed through the outer shell of the building's double-wall, and been absorbed in the rarefied, magnetized air-current of the Erentz circulation. Like poison in a man's veins, reaching his heart, the free alien electrons had disturbed the motors. They accelerated, then retarded. Pulsed unevenly, and drew added power from the reserve tanks. But they had normalized at once when the shot was past. The duty-man's voice sounded from the grid in answer to Grantline's question:

"Five degrees colder in your building. Can't you feel it?"

The disturbed, weakened Erentz circulation had allowed the outer cold to radiate through a trifle. The walls had had a trifle extra explosive pressure from the room-air. A strain—but that was all.

"It's probably their most powerful single weapon, Gregg." Grantline said.

I nodded. "Yes. I think so."

I had smashed the real giant, with its ten-mile range. The ship was only two miles from us, but it seemed as though this projector were exerted to its distance limit. I had noticed on the deck only one of this type. The others, paralyzing-rays and heat rays, were less deadly.

Grantline commented: "We can withstand a lot of that bombardment. If we stay inside—"

That ray, striking a man outside, would penetrate his Erentz suit within a few seconds, we could not doubt. We had, however, no intention of going out unless for dire necessity.

"Even so," said Grantline. "A hand-shield would hold it off for a certain length of time."

* * * * *

We had an opportunity a moment later to test our insulated shields. The bolt came again. It darted along the front face of the building, caught our window and clung. The double window-shells were our weakest points. The sheet of flashing Erentz current was transparent: we could see through it as though it were glass. It moved faster, but was thinner at the windows than in the walls. We feared the bombarding electrons might cross it, penetrate the inner shell and, like a lightning bolt, enter the room.

We dropped the curtain corner. The radiance of the bolt was dimly visible. A few seconds, then it vanished again, and behind the shield we had not felt a tingle.

"Harmless!"

But our power had been drained nearly an aeron, to neutralize the shock to the Erentz current. Grantline said:

"If they kept that up, it would be a question of whose power supply would last longest. And it would not be ours.... You saw our lights fade down while the bolt was striking?"

But the brigands did not know we were short of power. And to fire the projector with a continuous bolt would, in thirty minutes, perhaps, have exhausted their own power-reserve.

This strange warfare! It was new to all of us, for there had been no wars on any of the three inhabited worlds for many years. Silent, electronic conflict! Not a question of men in battle. A man at a switch on the brigand ship was the sole actor so far in this assault. And the results were visible only in the movement of the needle-dials on our instrument panels. A struggle, so far, not of man's bravery, or skill, or strategy, but merely of electronic power supply.

* * * * *

Yet warfare, however modern, can never transcend the human element. Before this insult was ended I was to have many demonstrations of that!

"I won't answer them," Grantline declared. "Our game is to sit defensive. Conserve everything. Let them make the leading moves."

We waited half an hour, but no other shot came. The valley floor was patched with Earthlight and shadow. We could see the vague outline of the brigand ship backed up at the foot of the opposite crater-wall. The form of its dome over the illumined deck was visible, and the line of its tiny hull ovals.

On the rocks near the ship, helmet-lights of prowling brigands occasionally showed.

Whatever activity was going on down there we could not see with the naked eye. Grantline did not use our telescope at first. To connect it, even for local range, drew on our precious ammunition of power. Some of the men urged that we search the sky with the telescope. Was our rescue ship from Earth coming? But Grantline refused. We were in no trouble yet. And every delay was to our advantage.

"Commander, where shall I put these helmets?"

A man came wheeling a pile of helmets on a little truck.

"At the manual porte—other building."

Our weapons and outside equipment were massed at the main exit-locks of the large building. But we might want to sally out through the smaller locks also. Grantline sent helmets there; suits were not needed, as most of us were garbed in them now, but without the helmets.

* * * * *

Snap was still in the workshop. I went there during this first half-hour of the attack. Ten of our men were busy there with the little flying platforms and the fabric shields.

"How is it, Snap?"

"Almost all ready."

He had six of the platforms, including the one we had already used, and more than a dozen hand-shields. At a squeeze, all of us could ride on these six little vehicles. We might have to ride them! We planned that, in the event of disaster to the buildings, we could at least escape in this fashion. Food supplies and water were now being placed at the portes.

Depressing preparations! Our buildings uninhabitable, a rush out and away, abandoning the treasure.... Grantline had never mentioned such a contingency, but I noticed, nevertheless, that preparations were being made.

"Only that one shot, Gregg?"

Snap's voice was raised over the clang of the workmen bolting the little gravity-plates of the last platform.

"Four blasts. But just the one projector. Their strongest."

He grinned. He wore no Erentz suit as yet. He stood in torn grimy work-trousers and a bedraggled shirt, with the inevitable red eyeshade holding back his unruly hair. Around his waist was the weighted belt and there were weights on his shoes for gravity stability.

"Didn't hurt us much."

"No."

"When I get the tube-panels in this thing I'll be finished. It'll take another half-hour. I'll join you. Where are you stationed?"

* * * * *

I shrugged. "I was at a front window with Johnny. Nothing to do as yet."

Snap went back to his work. "Well, the longer they delay, the better for us. If only your signal got through, Gregg! We'll have a rescue ship here in a few hours more."

Ah, that "if!"

I turned away. "Can't help you, Snap?"

"No. Take those shields," he added to one of the men.

"Take them where?"

"To Grantline. The front admission porte, or the back. He'll tell you which."

The shields were wheeled away on a little cart. I followed it. Grantline sent it to the back exit.

"No other move from them yet, Johnny?"

"No. All quiet."

"Snap's almost finished."

The brigands presently made another play. A giant heat-ray beam came across the valley. It clung to our front wall for nearly a minute.

Grantline got the reports from the instrument room. He laughed.

"That helped rather than hurt us. Heated the outer wall. Frank took advantage of it and eased up the motors."

We wondered if Miko knew that. Doubtless he did, for another interval passed and the heat-ray was not used again.

* * * * *

Then came a zed-ray. I stood at the window, watching it, faint sheen of beam in the dimness. It crept with sinister deliberation along our front building-wall, clung momentarily to our shielded windows and pried with its revealing glow into Snap's workshop.

"Looking us over," Grantline commented. "I hope they like what they see."

I knew he did not feel the bravado that was in his tone. We had nothing but small hand weapons: heat-rays, electronic projectors, and bullet projectors. All for very short-range fighting. If Miko had not known that before, he could at least make a good guess at it after the careful zed-ray inspection. With his ship down there two miles away, we were powerless to reach him.

It seemed that Miko was now testing the use of all his mechanisms. A light-flare went up from the dome-peak of the ship. It rose in a slow arc over the valley, and burst. For a few seconds the two-mile circle of crags was brilliantly illumined. I stared, but I had to shield my eyes against the dazzling actinic glare, and I could see nothing. Was Miko making a zed-ray photograph of our interiors? We had no way of knowing.

He was testing his short-range projectors now. With my eyes again accustomed to the normal Earthlight in the valley, I could see the stabs of little electronic beams, the Martian paralyzing-rays and heat-beams. They darted out like flashing swords from the rocks near the ship.

Then the whole ship and the crater-wall behind it seemed to shift sidewise as a Benson curve-light spread its glow about the ship, with a projector curve-beam coming up and touching the window through which I was peering.

"Haljan, come look at these damn girls! Commander—shall I stop them? They'll kill themselves, or kill us—or smash something!"

* * * * *

We followed the man into the building's broad central corridor. Anita and Venza were riding a midget flying platform! Anita, in her boyish black garb; Venza with a flowing white Venus-robe. They lay on the tiny, six-foot oblong of metal, one manipulating its side shields, the other at the controls. As we arrived, the platform came sliding down the narrow confines of the corridor, lurching, barely missing a door-grid projection. Up to skim the low vaulted ceiling, then down to the floor.

It sailed past our heads, rising over us as we ducked. Anita waved her hand.

Grantline gasped, "By the infernal!"

I shouted, "Anita, stop!"

But they only waved at us, skimming down the length of the corridor, seeming to avoid a smash a dozen times by the smallest margin of chance, stopping miraculously at the further end, hanging poised in mid-air, wheeling, coming back, undulating up and down.

Grantline clung to me. "By the gods of the airways!"

In spite of my astonished horror I could not but share Grantline's obvious admiration. Three of four other men were watching. The girls were amazingly skillful, no doubt of that. There was not a man among us who could have handled that gravity-platform indoors, not one who would have had the brash temerity to try it.

The platform landed with the grace of a humming bird at our feet, the girls dexterously balancing so that it came to rest swiftly, without the least bump.

I confronted them. "Anita, what are you doing?"

She stood up, flushed and smiling.

"Practising."

Imperturbable girls! The product of their age. Oblivious to the brigand attack, they were in here practising!

"What for?" I demanded.

Venza's roguish eyes twinkled at me. Her hands went to her slim hips with a gesture of defiance.

She asked, "Are you speaking for yourself or the commander?"

* * * * *

I ignored her. "What for?" I reiterated.

"Because we're good at it," Anita retorted. "Better than any of you men. If you should need us...."

"We don't. We won't." I said shortly.

"But if you should...."

Venza put in, "If Snap and I hadn't come for you, you wouldn't be here, Gregg Haljan. I didn't notice you were so horrified to see me holding that shield up over you!"

It silenced me.

She added, "Commander, let us alone. We won't smash anything."

Grantline laughed, "I hope you won't!"

A warning call took us back to the front window. The brigand's search-beam was again being used. It swept slowly along the length of the cliff. Its circle went down the cliff steps to the valley floor, and came sweeping up again. Then it went up to the observatory platform at the summit above us, then back and crept over to the ore-sheds.

We had no men outside, if that was what the brigand wanted to determine. The search-beam presently vanished. It was replaced immediately by a zed-ray, which darted at once to our treasure sheds and clung.

That stung Grantline into his first action. We flung our own zed-ray down across the valley. It reached the brigand ship; this zed-ray and a search-light were our only two projectors of long range.

The brigand ray vanished when ours flashed on. I was with Grantline at an image grid in the instrument room. We saw the deck of the brigand ship and the blurred interior of the cabins.

"Try the search-beam, Franck. We don't need the other."

The zed-ray went off. We gazed down our search-light which clung to the dome of the distant enemy vessel. We could see movement there.

"The telescope," Grantline ordered.

* * * * *

The little dynamos hummed. The telescope-finder glowed and clarified. On the deck of the ship we saw the brigands working with the assembling of ore-carts. A deck landing-porte was open. The ore-carts were being carried out through a porte-lock and down a landing incline. And on the rocks outside, we saw several of the carts—and rail-sections and the sections of an ore-shute.

Miko was unloading his mining apparatus! He was making ready to come up for the treasure!

The discovery, startling as it was, nevertheless was far overshadowed by an imperative danger alarm from our main building. Brigands were outside on our ledge! Miko's search-beam, sweeping the ledge a moment before, had carefully avoided revealing them. It had been done just for that purpose, no doubt—making us sure that the ledge was unoccupied and thus to guard against our own light making a search.

But there was a brigand group here close outside our walls! By the merest chance the radiating glow from our search-ray had shown the helmeted figures scurrying for shelter.

Grantline leaped to his feet.

We rushed for the rear exit-porte which was nearest us. The giant bloated figures had been seen running along the outside of the connecting corridor, in this direction. But before we ever got there, a new alarm came. A brigand was crouching at a front corner of the main building! His hydrogen heat-torch had already opened a rift in the wall!

CHAPTER XXXV

Desperate Offensive

"In with you!" ordered Grantline. "Get your helmets on! How many? Six? Enough—get back there, Williams—you were last. The lock won't hold any more."

I was one of the six who jammed into the manual exit lock. We went through it: in a moment we were outside. It was less than three minutes since the prowling brigands had been seen.

Grantline touched me just as we emerged. "Don't wait for orders! Get them!"

"That fellow with the torch, the most dangerous—"

"Yes! I'm with you."

We went out with a rush. We had already discarded our shoe and belt weights. I leaped, regardless of my companions.

The scurrying Martians had disappeared. Through my visor bull's-eye I could see only the Earthlit rocky surface of the ledge. Beside me stretched the dark wall of our building.

I bounded toward the front. The brigand with the torch had been at this front corner. I could not see him from here: he had been crouching just around the angle.

I had a tiny bullet projector, the best weapon for short range outdoors. I was aware of Grantline close behind me.

It took only a few of my giant leaps. I landed at the corner, recovered my balance, and whirled around to the front.

The Martian was here, a giant misshapen lump as he crouched. His torch was a little stab of blue in the deep shadow enveloping him. Intent upon his work, he did not see me. Perhaps he thought his fellows had broken our exits by now.

* * * * *

I landed like a leopard upon his back and fired, my weapon muzzle ramming him. His torch fell hissing with a silent rain of blue fire upon the rocks.

As my grip upon him made audiphone contact, his agonized scream rattled the diaphragms of my ear-grids with horrible, deafening intensity.

He lay writhing under me, then was still. His scream choked into silence. His suit deflated within my encircling grip. He was dead; my leaden, steel-tipped pellet had punctured the double surface of his Erentz-fabric, penetrated his chest.

Grantline's following leap landed him over me.

"Dead?"

"Yes."

I climbed from the inert body. The torch had hissed itself out. Grantline swung on our building corner, and I leaned down with him to examine it. The torch had fused and scarred the surface of the wall, burned almost through. A pressure-rift had opened. We could see it, a curving gash in the metal wall-plate like a crack in a glass window-pane.

I went cold. This was serious damage! The rarefied Erentz-air would seep out. It was leaking now: we could see the magnetic radiance of it all up the length of the ten-foot crack. The leak would change the pressure of the Erentz system, constantly lower it, demanding steady renewal. The Erentz motors would overheat; some might go bad from the strain.

Grantline stood gripping me.

"Damn bad!"

"Yes. Can't we repair it, Johnny?"

"No. Have to take that whole plate-section out, shut off the Erentz plant and exhaust the interior air of all this bulkhead of the building. Day's job—maybe more."

* * * * *

And the crack would get worse, I knew. It would gradually spread and widen. The Erentz circulation would fail. All our power would be drained struggling to maintain it. This brigand who had unwittingly committed suicide by his daring act had accomplished more than he perhaps had realized. I could envisage our weapons, useless from lack of power. The air in our buildings turning fetid and frigid: ourselves forced to the helmets. A rush out to abandon the camp and escape. The buildings exploding—scattering into a litter on the ledge like a child's broken toy. The treasure abandoned, with the brigands coming up and loading it on their ship.

Our defeat. In a few hours now—or minutes. This crack could slowly widen, or it could break suddenly at any time. Disaster, come now so abruptly upon us at the very start of the brigand attack....

Grantline's voice in my audiphone broke my despairing rush of thoughts. "Bad. Come on, Gregg; nothing to do here."

We were aware that our other four men had run along the building's other side. They emerged now—with the running brigands in front of them, rushing out toward the staircase on the ledge. Three giant Martian figures in flight, with our four men chasing.

A bullet projector spat, with its queer stab of exploding powder fed by the burning oxygen fumes of its artificial air-chamber—one of our men firing. A brigand fell to the rocks by the brink of the ledge. The others reached the descending staircase, tumbled down it with reckless leaps.

Our men turned back. Before we could join them, the enemy ship down in the valley sent up a cautious search-beam which located its returning men. Then the beam swung up to the ledge, landed upon us.

We stood confused, blinded by the brilliant glare. Grantline stumbled against me.

"Run, Gregg! They'll be firing at us."

We dashed away. Our companions joined us, rushing back for the porte. I saw it open, reinforcements coming out to help us—half a dozen figures carrying a ten-foot insulated shield. They could barely get it out through the porte.

* * * * *

The Martian search-ray abruptly vanished. Then almost instantly the electronic ray came with its deadly stab. Missed us at first, as we ran for the shield. It vanished, and stabbed again. It caught us, but now we were behind the shield, carrying it back to the porte, hiding behind it.

The ray stabbed once or twice more.

Whether Miko's instruments showed him how serious that damage was to our front wall, we never knew. But I think that he realized. His search-beam clung to it, and his red-ray pried into our interiors.

The brigand ship was active now. We were desperate: we used our telescope freely for observation. And used our red-ray and search-light. Miko's ore-carts and mining apparatus were unloaded on the rocks. The rail-sections were being carried a mile out, nearly to the center of the valley. A subsidiary camp was being established there, only a mile from the base of our cliff, but still far beyond reach of our weapons. We could see the brigand lights down there.

Then the ore-shute sections were brought over. We could see Miko's men carrying some of the giant projectors, mounting them in the new position. Power tanks and cables. Light-flare catapults—little mechanical cannons for throwing the bombs.

The enemy search-light constantly raked our vicinity. Occasionally the giant electronic projector flung up its bolt as though warning us not to dare leave our buildings.

* * * * *

Half an hour went by. Our situation was even worse than Miko could know. The Erentz motors were running hot—our power draining, the crack widening. When it would break we could not tell; but the danger was like a sword over us.

An anxious thirty minutes for us, this second interlude. Grantline called a meeting of all our little force, with every man having his say. Inactivity was no longer a feasible policy. We recklessly used our power to search the sky. Our rescue ship might be up there; but we could not see it with our disabled instruments. No signals came. We could not—or, at least, did not—receive them.

"They wouldn't signal," Grantline protested. "They'd know the Martians would be more likely to get the signal than us. Of what use to warn Miko?"

But he did not dare wait for a rescue ship that might or might not be coming! Miko was playing the waiting game now—making ready for a quick loading of the ore when we were forced to abandon our buildings.

The brigand ship suddenly moved its position! It rose up in a low flat arc, came forward and settled in the center of the valley where the carts and rail-sections were piled, and the outside projectors newly mounted on the rocks. But the projectors only shot at us occasionally.

The brigands now began laying the rails from the ship toward the base of our cliff. The chute would bring the ore down from the ledge, and the carts would take it to the ship.

The laying of the rails was done under cover of occasional stabs from the electronic projector.

And then we discovered that Miko had made still another move. The brigand rays, fired from the depths of the valley, could strike our front building, but could not reach all our ledge. And from the ship's new and nearer position this disadvantage was intensified. Then abruptly we realized that under cover of darkness-bombs an electronic projector and search-ray had been carried to the top of the crater-rim, diagonally across and only half a mile from us. Their beams shot down, raking all our vicinity from this new angle.

* * * * *

I was on the little flying platform which sallied out as a test to attack these isolated projectors. Snap and I and one other volunteer went. He and I held the shield; Snap handled the controls.

Our exit-porte was on the lee side of the building from the hostile search-beam. We got out unobserved and sailed upward; but soon a light from the ship caught us. And the projector bolts came up....

Our sortie only lasted a few minutes. To me, it was a confusion of crossing beams, with the stars overhead, the swaying little platform under me, and the shield tingling in my hands when the blasts struck us. Moments of blurred terror....

The voice of the man beside me sounded in my ears: "Now, Haljan, give them one!"

We were up over the peak of the rim with the hostile projectors under us. I gauged our movement, and dropped an explosive powder bomb.

It missed. It flared with a puff on the rocks, twenty feet from where the two projectors were mounted. I saw that two helmeted figures were down there. They tried to swing their grids upward, but could not get them vertical to reach us. The ship was firing at us, but it was far away. And Grantline's search-beam was going full-power, clinging to the ship to dazzle them.

Snap circled us. As we came back I dropped another bomb. Its silent puff seemed littered with flying fragments of the two projectors and the bodies of the men.

We flew swiftly back and got in.

* * * * *

It decided Grantline. For an hour past Snap and I had been urging our plan to use the gravity platforms. To remain inactive was sure defeat now. Even if our buildings did not explode—if we thought to huddle in them, helmeted in the failing air—then Miko could readily ignore us and proceed with his loading of the treasure under our helpless gaze. He could do that now with safety—if we refused to sally out—for we could not fire our weapons through our windows.[1]

[Footnote 1: To fire a projector through the walls or windows would at once wreck the protective Erentz system. The enemy ship has pressure portes, constructed for the emission of the weapon-rays. Grantline's only weapons thus mounted were his search-beam and zed-ray.]

To remain defensive would end inevitably in our defeat. We all knew it now; it was obvious. The waiting game was Miko's—not ours! And he was playing it.

The success of our attack upon the distant isolated projectors heartened us. Yet it was a desperate offensive indeed upon which we now decided!

We prepared our little expedition at the larger of the exit portes. Miko's zed-ray was watching all our interior movements. We made a brave show of activity in our workship with abandoned ore-carts which were stored there. We got them out, started to recondition them.

It seemed to fool Miko. His zed-ray clung to the workshop, watching us. And at the distant porte we gathered the little platforms, the shields, helmets, bombs, and a few hand-projectors.

There were six platforms—three of us upon each. It left four people to remain indoors.

* * * * *

I need not describe the emotion with which Snap and I listened to Venza and Anita pleading to be allowed to accompany us. They urged it upon Grantline, and we took no part. It was too important a decision. The treasure—the life or death of all these men—hung now upon the fate of our venture. Snap and I could not intrude our personal feelings.

And the girls won. Both were undeniably more skilful at handling the midget platforms than any of us men. Two of the six platforms could be guided by them. That was a third of our little force! And of what use to go out and be defeated, leaving the girls here to meet death almost immediately afterward?

We gathered at the porte. A last minute change made Grantline order six of his men to remain guarding the buildings. The instruments—the Erentz system—all the appliances had to be attended.

It left four platforms, each with three men, with Grantline at the controls of one of them. And upon the other two of the six Venza rode with Snap, and I with Anita.

We crouched in the shadows outside the porte. So small an army, sallying out to bomb this enemy vessel or be killed in the attempt! Only sixteen of us. And thirty or so brigands.

I envisaged then this tiny Moon-crater, the scene of this battle we were waging. Struggling humans, desperately trying to kill. Alone here on this globe. Around us, the wide reaches of Lunar desolation. In all this world, every human being was gathered here, struggling to kill!

Anita drew me down to the platform. "Ready, Gregg."

The others were rising. We lifted, moved slowly out and away from the protective shadows of the building.

In a tiny queue the six little platforms sailed out over the valley toward the brigand ship.

CHAPTER XXXVI

The Battle in the Crater

Grantline led us. We held about level. Five hundred feet beneath us the brigand ship lay, cradled on the rocks. When it was still a mile away from us I could see all its outline fairly clearly in the dimness. Its tiny hull-windows were now dark; but the blurred shape of the hull was visible and above it the rounded cap of dome, with a dim radiance beneath it.

We followed Grantline's platform. It was rising, drawing the others after it like a tail. I touched Anita where she lay beside me with her head half in the small hooded control-bank.

"Going too high."

She nodded, but followed the line nevertheless. It was Grantline's command.

I lay crouched, holding the inner tips of the flexible side-shields. The bottom of the platform was covered with the insulated fabric. There were two side-shields. They extended upward some two feet, flexible so that I could hold them out to see over them, or draw them up and in to cover us.

They afforded a measure of protection against the hostile rays, though just how much we were not sure. With the platform level, a bolt from beneath could not harm us unless it continued for a considerable time. But the platform, except upon direct flight, was seldom level, for it was a frail, unstable little vehicle! To handle it was more than a question of the controls. We balanced, and helped to guide it, with the movement of our bodies—shifting our weight sidewise, or back, or forward to make it dip as the controls altered the gravity-pull in its tiny plate-sections.

Like a bird, wheeling, soaring, swooping. To me, it was a precarious business.

* * * * *

But now we were in straight flight diagonally upward. The outline of the brigand ship came under us. I crouched tense, breathless; every moment it seemed that the brigands must discover us and loose their bolts.

They may have seen us for some moments before they fired. I peered over the side-shield down at our mark, then up ahead to get Grantline's firing signal. It seemed long delayed. We were almost over the ship. An added glow down there must have warned Grantline that a shot was coming. The tiny red light flared bright on his platform.

I hissed on our Benson curve-light radiance. We had been dark, but a soft glow now enveloped us. Its sheen went down to the ship to reveal us. But its curving path showed us falsely placed. I saw the little line of platforms ahead of us seem to move suddenly sidewise.

It was everyone for himself now; none of us could tell where the other platforms actually were placed or headed. Anita swooped us sharply down to avoid a possible collision.

"Gregg—?"

"Yes. I'm aiming."

I was making ready to drop the little explosive globe-bomb. Our search-light ray at the camp, answering Grantline's signal, shot down and bathed the ship in a white glare, revealing it for our aim. Simultaneously the brigand bolts came up at us.

I held my bomb out over the shield, calculating the angle to throw it down. The brigand rays flashed around me. They were horribly close; Miko had understood our sudden visible shift and aimed, not where we appeared to be, but where we had been a moment before.

* * * * *

I dropped my bomb hastily at the glowing white ship. The touch of a hostile ray would have exploded it in my hand. I could see its blue-sizzling fuse as it fell. I saw the others also dropping from our nearby platforms. The explosions from them merged in a confusion of the white glare—and a cloud of black light-mist as the brigands out on the rocks used their occulting darkness bombs.

We swept past in a blur of leaping hostile beams. Silent battle of lights! Darkness bombs down at the ship struggling to bar our camp search-ray. The Benson radiance-rays from our passing platforms curving down to mingle with the confusion. The electronic rays sending up their bolts....

Our platforms dropped some ten dynamitrine bombs in that first passage over the ship. As we sped by, I dimmed the Benson's radiance. I peered. We had not hit the ship. Or if we had, the damage was inconclusive. But on the rocks I could see a pile of ore-carts scattered—broken wreckage, in which the litter of two or three projectors seemed strewn. And the gruesome deflated forms of several helmeted figures. Others seemed, to be running, scattering—hiding in the rocks and pit-holes. Twenty brigands at least were outside the ship. Some were running over toward the base of our camp-ledge. The darkness bombs were spreading like a curtain over the valley floor; but it seemed that some of the figures were dragging their projectors away.

We sailed off toward the opposite crater-rim. I remember passing over the broken wreckage of Grantline's little space-ship, the Comet. Miko's bolts momentarily had vanished. We had hit some of his outside projectors; the others were abandoned, or being dragged to safer positions.

* * * * *

After a mile we wheeled and went back. I suddenly realized that only four platforms were in the re-formed line ahead of us. One was missing! I saw it now, wavering down, close over the ship. A bolt leaped up diagonally from a distant angle on the rocks and caught the disabled platform. It fell, whirling, glowing red—disappeared into the blur of darkness like a bit of heated metal plunged into water.

One out of six of our platforms already lost! Three men of our little force gone!

But Grantline led us desperately back. Anita caught his signal to break our line. The five platforms scattered, dipping and wheeling like frightened birds—blurring shapes, shifting unnaturally in flight as the Benson curve-angles were altered.

Anita now took our platform in a long swoop downward. Her tense, murmured voice sounded in my ears:

"Hold off: I'll take us low."

A melee. Passing platform shapes. The darting bolts, crossing like ancient rapiers. Falling blue points of fuse-lights as we threw our bombs.

Down in a swoop. Then rising. Away, and then back. This silent warfare of lights! It seemed that around me must be bursting a pandemonium of sound. Yet I heard nothing. Silent, blurred melee, infinitely frightening. A bolt struck us, clung for an instant; but we weathered it. The light was blinding. Through my gloves I could feel the tingle of the over-charged shield as it caught and absorbed the hostile bombardment. Under me the platform seemed heated. My little Erentz motors ran with ragged pulse. I got too much oxygen; my head roared with it. Spots danced before my closed eyes. Then not enough oxygen. I was dully smothering....

Then the bolt was gone. I found us soaring upward, horribly tilted. I shifted over.

"Anita! Anita, dear!"

"Yes. Gregg. All right."

* * * * *

The melee went on. The brigand ship and all its vicinity was enveloped in darkness-mist now—a turgid sable curtain, made more dense by the dissipating heavy fumes of our exploding bombs which settled low over the ship and the rocks nearby. The search-light from our camp strove futilely to penetrate the cloud.

Our platforms were separated. One went by high over us; I saw another dart close beneath my shield.

"God, Anita!"

"Too close! I did not mean that—I didn't see it."

Almost a collision.

"Oh, Gregg, haven't we broken the ship's dome yet?"

It seemed not. I had dropped nearly all my bombs. This could not go on much longer. Had it been only five minutes? Only that? Reason told me so, yet it seemed an eternity of horror.

Another swoop. My last bomb. Anita had brought us into position to fling it. But I could not. A bolt stabbed up from the gloom and caught us. We huddled, pulling the shields up and over us.

Blurred darkness again. Too much to the side now. I had to wait while Anita swung us back. Then we seemed too high.

We swooped. But not too low! Down in the darkness-mist we would immediately have lost direction, and crashed.

I waited with my last bomb. The other platforms were occasionally dropping them: I had been too hasty, too prodigal.

Had we broken the ship's dome with a direct hit? It seemed not.

* * * * *

The brigands were occasionally sending up catapulted light-flares. They came from positions on the rocks outside the ship. They mounted in lazy curves and burst over us. The concealing darkness, broken only by the flares of our explosions, enveloped the enemy. Our camp search-light was still struggling with it. But overhead, where the few little platforms were circling and swooping, the flares gave an almost continuous glare. It was dazzling, blinding. Even through the smoked pane which I adjusted to my visor I could not stand it.

But there were thoughts of comparative dimness. In a patch where the Earthlight struck through the darkness of the rocks, I saw another of our fallen platforms! Snap and Venza! Dear God....

It was not they, but three figures of our men. One was dead. Two had survived the fall. They stood up, staggering. And in that instant, before the turgid black curtain closed over them, I saw two brigands come rushing. Their hand projectors stabbed at close range. Our men crumpled and fell.

And now I saw why probably we had never yet hit the ship.

Its outline was revealed. "Now, Gregg—can you fling it from here?"

We were in position again. I flung my last missile, watched its light as it dropped. On the dome-roof two of Miko's men were crouching. My bomb was truly aimed—perhaps one of the few in all our bombardment which would have landed directly on the dome-roof. But the waiting marksmen fired at it with short-range heat projectors and exploded it harmlessly while it was still above them.

We swung up and away. I saw, high above us, Grantline's platform, recognizing its red signal light. There seemed a lull. The enemy fire had died down to only a very occasional bolt. In the confusion of my whirling impressions I wondered if Miko were in distress? Not that! We had not hit his ship; perhaps we had done little damage indeed! It was we who were in distress. Two of our platforms had fallen—two out of six. Or more, of which I did not know.

* * * * *

I saw one rising off to the side of us. Grantline was over us. Well, we were at least three. And then I saw the fourth.

"Grantline is calling us up, Gregg."

"Yes."

Grantline's signal-light was summoning us from the attack. He was a thousand or two thousand feet above.

I was suddenly shocked with horror. The search-ray from our camp abruptly vanished! Anita wheeled us to face the distant ledge. The camp-lights showed, and over one of the buildings was a distress light!

Had the crack in our front wall broken, threatening explosion of all the buildings? The wild thoughts swept me. But it was not that. I could see light-stabs from the cliff outside the main building. Miko had dared to send some of his men to attack our almost abandoned camp!

Grantline realized it. His red helmet-light semaphored the command to follow him. His platform soared away, heading for the camp, with the other two behind him.

Anita lifted us to follow. But I checked her.

"No! Off to the right, across the valley."

"But Gregg!"

"Do as I say, Anita."

She swung us diagonally away from both the camp and the brigand ship. I prayed that we might not be noticed by the brigands.

"Anita, listen: I've an idea!"

The attack on the brigand ship was over. It lay enveloped in the darkness of the powder-gas cloud and its own darkness bombs. But it was uninjured.

Miko had answered us with our own tactics. He had practically unmanned the ship, no doubt, and had sent his men to our buildings. The fight had shifted. But I was now without ammunition, save for two or three small bullet projectors.

Of what use for our platform to rush back? Miko expected that. His attack on the camp was undoubtedly made just for that purpose.

"Anita, if we can get down on the rocks somewhere near the ship, and creep up on it unobserved in that blackness...."

* * * * *

I might be able to open its manual hull-lock, rip it open and let the air out. If I could get into its pressure chamber and unseal the inner slide....

"It would wreck the ship, Anita, exhaust all its air. Shall we try it?"

"Whatever you say, Gregg."

We seemed to be unobserved. We skimmed close to the valley floor, a mile from the ship. We headed slowly toward it, sailing low over the rocks.

Then we landed, left the platform.

"Let me go first, Anita."

I held a bullet projector. With slow, cautious leaps, we advanced. Anita was behind me. I had wanted to leave her with the platform, but she would not stay. And to be with me seemed at least equally safe.

The rocks were deserted. I thought there was very little chance that any of the enemy would lurk here. We clambered over the pitted, scarred surface. The higher crags, etched with Earthlight, stood like sentinels in the gloom.

The brigand ship with its surrounding darkness was not far from us. Then we entered the cloud.

No one was out here. We passed the wreckage of broken projectors, and gruesome, shattered human forms.

We prowled closer. The hull of the ship loomed ahead of us. All dark.

We came at last close against the sleek metal hull-side, slid along it toward where I was sure the manual-porte was located.

Abruptly I realized that Anita was not behind me! Then I saw her at a little distance, struggling in the grip of a giant helmeted figure! The brigand lifted her—turned, and, carrying her, ran the other way!

I did not dare fire. I bounded after them along the hull-side, around under the curve of the pointed bow, down along the other side.

I had mistaken the hull-porte location. It was here. The running, bounding figure reached it, slid the panel. I was only fifty feet away—not much more than a single leap. I saw Anita being shoved into the pressure lock. The Martian flung himself after her.

I fired at him, but missed. I came with a rush. And as I reached the porte it slid closed in my face, barring me!

CHAPTER XXXVII

In the Pressure Lock.

With puny fists I pounded the panel. A small pane in it was transparent. Within the lock I could see the blurred figures of Anita and her captor—and, it seemed, another figure. The lock was some ten feet square, with a low ceiling. It glowed with a dim tube-light.

I pounded, thumped with futile, silent blows. The mechanism was here to open this manual; but it was now clasped from within and would not operate.

A few seconds only, while I stood there in a panic of confusion, raging to get in. This disaster had come so suddenly! I did not plan; I had no thought save to batter my way in and rescue Anita. I recall that I beat on the glassite pane with my bullet projector until the weapon was bent and useless; and I flung it with a wild, despairing rage at my feet.

They were letting the ship's air-pressure into this lock. Soon they would open the inner panel, step into the secondary chamber—and in a moment more would be within the ship's hull corridor. Anita, lost to me!

The outer panel suddenly opened! I had lunged against it with my shoulder; the giant figure inside slid it. I was taken by surprise! I half-fell inward.

Huge arms went around me. The goggled face of the helmet peered into mine.

"So it is you, Haljan! I thought I recognized that little device over your helmet-bracket. And there is my little Anita, come back to me again!"

Miko!

* * * * *

This was he. His great bloated arms encircling me, bending me backward, holding me almost helpless. I saw over his shoulder that Anita was clutched in the grip of another helmeted figure. No giant, but tall for an Earthman—almost as tall as myself. Then the tube-light in the room illumined the visor. I saw the face, recognized it. Moa!

I gasped, "So—I've—got you, Miko—"

"Got me! You're a fool to the last, Gregg Haljan! A fool to the last! But you were always a fool."

I could scarcely move in his grip. My arms were pinned. As he slowly bent me backward, I wound my legs around one of his; it was as unyielding as a steel pillar. He had closed the outer panel; the air-pressure in the lock was rising. I could feel it against my suit.

My helmeted head was being forced backward; Miko's left arm held me. In his gloved right hand as it came slowly up over my throat I saw a knife-blade, its naked, sharpened metal glistening blue-white in the light from overhead.

I seized his wrist. But my puny strength could not hold him. The knife, against all my efforts, came slowly down.

A moment of this slow deadly combat—the end of everything for me.

I was aware of the helmeted figure of Moa casting off Anita—and then the two girls leaping together upon Miko. It threw him off his balance, and my hanging weight made him topple forward. He took a step to recover himself; his hand with the knife was flung up with an instinctive, involuntary balancing gesture. And as it came swiftly down again, I forced the knife-blade to graze his throat. Its point caught in the fabric of his suit.

His startled oath jangled in my ears. The girls were clawing at him; we were all four scrambling, swaying. With despairing strength I twisted at his waist. The knife went into his throat. I plunged it deeper.

* * * * *

His suit went flabby. He crumpled over me and fell, knocking me to the floor. His voice, with the horrible gurgling rasp of death in it, rattled my ear-grids.

"Not such a fool—are you, Haljan—"

Moa's helmeted head was close over us. I saw that she had seized the knife, jerked it from her brother's throat. She leaped backward, waving it.

I twisted from under Miko's inert, lifeless body. As I got to my feet, Anita flung herself to shield me. Moa was across the lock, backed up against its wall. The knife in her hand went up. She stood for the briefest instant regarding Anita and me holding each other. I thought that she was about to leap upon us; but before I could move, the knife came down and plunged into her breast. She fell forward, her grotesque helmet striking the floor-grid almost at my feet.

"Gregg!"

"She's dead."

"No! She moved! Get her helmet of! There's enough air here."

My helmet pressure-indicator was faintly buzzing to show that a safe pressure was in the room. I shut off Moa's Erentz motors, unfastened her helmet, raised it off. We gently turned her body. She lay with closed eyes, her pallid face blue-cast from the light in the lock.

With our own helmets off, we knelt over her.

"Oh. Gregg, is she dead?"

"No. Not quite—but dying."

"Oh Gregg, I don't want her to die! She was trying to help you there at the last."

She opened her eyes; the film of death was glazing them. But she saw me, recognized me.

"Gregg—"

"Yes, Moa, I'm here."

* * * * *

Her livid lips were faintly drawn in a smile. "I'm—so glad—you took the helmets off, Gregg. I'm—going—you know."

"No!"

"Going—back to Mars—to rest with the fire-makers—where I came from. I was thinking—maybe you would kiss me, Gregg—?"

Anita gently pushed me down. I pressed the white, faintly smiling lips with mine. She sighed, and it ended with a rattle in her throat.

"Thank you—Gregg—closer—I can't talk so loudly—"

One of her gloved hands struggled to touch me, but she had no strength and it fell back. Her words were the faintest of whispers:

"There was no use living—without your love. But I want you to see—now—that a Martian girl can—die with a smile—"

Her eyelids fluttered down: it seemed that she sighed and then was not breathing. But on her livid face the faint smile still lingered to show me how a Martian girl could die.

We had forgotten for the moment where we were. As I glanced up I saw that through the inner panel, past the secondary lock, the ship's hull-corridor was visible, and along its length a group of Martians were advancing! They saw us, and came running.

"Anita! Look! We've got to get out of here!"

The secondary lock was open to the corridor. We jammed on our helmets. The unhelmeted brigands by then were fumbling at the inner panel. I pulled at the lever of the outer panel. The brigands were hurrying, thinking they could be in time to stop me. One of the more cautious fumbled with a helmet.

"Anita, run! Try and keep your feet."

I slid the outer panel and pushed at Anita. Simultaneously the brigands opened the inner porte.

The air came with a tempestuous rush. A blast through the inner porte—through the little pressure-lock—a wild rush out to the airless Moon. All the air in the ship madly rushing to escape....

Like feathers we were blown with it. I recall an impression of the hurtling brigand figures and swift-flying rocks under me. A silent crash as I struck.

Then soundless, empty blackness.

CHAPTER XXXVIII

Triumph!

"Is he conscious? We'd better take him back, get his helmet off."

"It's over. We can get back now. Venza, dear, we've won—it's over."

"He hears us!"

"Gregg!"

"He hears us—he's all right!"

I opened my eyes. I lay on the rocks. Over my helmet other helmets were peering, and faint, familiar voices mingled with the roaring in my ears.

"—back to the camp and get his helmet off."

"Are his motors smooth? Keep them right, Snap—he must have good air."

I seemed unhurt. But Anita....

She was here. "Gregg, dear one!"

Anita safe! All four of us here on the Earthlit rocks, close outside the brigand ship.

"Anita!"

She held me, lifted me. I was uninjured. I could stand; I staggered up and stood swaying. The brigand ship, a hundred feet away, loomed dark and silent, a lifeless bulk, already empty of air, drained in that mad blast outward. Like the wreck of the Planetara—a dead, pulseless hulk already.

We four stood together, triumphant. The battle was over. The brigands were worsted, almost the last man of them dead or dying. No more than ten or fifteen had been available for that final assault upon the camp buildings. Miko's last strategy. I think perhaps he had intended, with his few remaining men, to take the ship and make away, deserting his fellows.

All on the ship, caught unhelmeted by the explosion, were dead long since.

I stood listening to Snap's triumphant account. It had not been difficult for the flying platforms to hunt down the attacking brigands on the open rocks. We had only lost one more platform.

Human hearts beat sometimes with very selfish emotions. It was a triumphant ending for us, and we hardly gave a thought that half of Grantline's little group had perished.

We huddled on Snap's platform. It rose, lurching drunkenly, barely carrying us.

And as we headed for the Grantline buildings, where still the rift in the wall had not quite broken, there came the final triumph. Miko had been aware of it, and knew he had lost. Grantline's search-light leaped upward, swept the sky, caught its sought-for object—a huge silver cylinder, bathed brightly in the white search-beam glare.

The police-ship from Earth!

CHAPTER XXXIX

My Exit

My narrative lies now in this permanently recorded form before you, and I prepare my exit bow with the humble hope that I may have given you pleasure. If so, I do beg you to tell me of it. There are some who already have flashed their approval of my discs; I thank them most earnestly and gratefully.

My errors of recording unquestionably are many; and for them I ask your indulgence. There have been, I can readily see, errors of omission. I have not mentioned, for instance, the final rescue of the Planetara's marooned passengers on the asteroid. You will bear with me, since the disc-space has its technical limitations, that such omissions have been unavoidable.

Since the passage of the Earth-law by the Federated Board of Education, forcing narrative fiction to cling so closely to sworn facts of actual happening, I need offer no assurance of the truth of my narrative. My witnesses have filed their corroborating declarations. Indeed, the Planetara's wreck and the brigands' attack upon the Moon-treasure were given the widest news-casters' publicity, as you all know. Yet I, who was unwittingly involved in those stirring events, may have added a more personal note, making the scenes more vivid to your imagination. I have tried to do that. I do hope that in some measure you will think I have succeeded.

There are many foolish girls now who say that they would like to know Gregg Haljan. They doubtless would be very disappointed. I really crave no more publicity. And the girls of all the Universe have no charm for me. There is only one, for me—an Earth-girl.

I think that life has very beautifully endowed me with its blessings.



Giants of the Ray

By Tom Curry



[Sidenote: Madly the three raced for their lives up the shaft of the radium mine, for behind them poured a stream of hideous monsters—giants of the ray!]

"I tell you I'm not crazy," insisted the tall man. "Durkin, they got a big mine."

Bill Durkin laughed roughly, and sneered openly at his partner, Frank Maget. "G'wan, you're drunk."

"Well, I was last night," admitted Maget. "But I'd slept it off this morning. I was lying under that table in the Portuguee's, and when I opened my eyes, there were these three birds sitting near me. They hadn't spotted me. I heard 'em talking of wealth, how their mine was of unbelievable richness and greater than any other deposit in the world. Well, that means something, don't it?"

"That's all right," said Durkin. "But whoever saw a cricket fifteen inches long?"



"Listen. There were three of these guys. One was a hell of a looking fellow: his face was piebald, with purple spots. His skin was bleached and withered, and one eye looked like a pearl collar button! They called him Professor, too, Professor Gurlone. Well, he takes out this damn cricket thing and it was sort of reddish purple but alive, and as long as your forearm. This professor guy says his son had taken an ordinary cricket and made it grow into the one he had. But the mine was what interested me. I kept my mouth shut and my ears open, and it's in the Matto Grosso. May be emeralds, diamonds, or gold. Boy, I'm heading for it, right now. The old guy's going back to-morrow, get me?"

"It's a lot of bunk," growled Durkin, who was stout and red of countenance.

"Yeh? Well, Otto Ulrich don't put fifty thousand into bunk."

Durkin whistled. "You mean the German loosened up that much?" he asked, and his eyes showed interest.

"Sure. He paid this Gurlone fifty thousand dollars—credit, of course."

"Well—maybe there's something in the mine story. But boy, you were drunk when you saw that cricket. No cricket ever grew that big. You always see things when you get too much rum in you."

"The hell you say," cried Maget. "I saw it, I tell you!"

* * * * *

Durkin feigned elaborate politeness. "Oh, all right, Frank. Have it your own way. You saw a cricket that big and this Gurlone feller took a couple of pink elephants out of his pocket to pay the check. Sure, I believe you."

But money never failed to attract the two tropical tramps. They were looking for trouble, not work, and the idea of a raid on a rich mine in the Matto Grosso was just what they would enjoy.

An hour later, they had cornered a small, inoffensive peon named Juan. Juan, Maget and Durkin had discovered, had come out of the wilderness with Professor Gurlone, the strange looking gentleman who spoke of a fabulously wealthy mine and commanded checks for fifty thousand dollars from a reputable banking firm. Such a man was worth watching.

The two rascals were expert at pumping the little half-breed. They knew peons, and the first thing that happened was that Durkin had slipped Juan several dollars and had pressed a large glass of whiskey on the little man.

The conversation was in broken English and Spanish.

"Quien sabe?"

Durkin and Maget had this phrase flung at them often during the course of the talk with Juan, and there were many elaborate shrugs.

There was a mine, way back in the Matto Grosso, said Juan. He thought it might contain silver: there had been the shaft of an old mine there. But now they were deep down in the ground, digging out reddish brown ore, and the cavern smoked and smelled so badly a man could work but an hour or two before being relieved. But the pay was very high. Also, Juan, in his rambling way, spoke of grotesque animals. What were these creatures like? asked Durkin. Then came a shrug, and Juan said they were like nothing else on earth.

* * * * *

Durkin discounted the part of the story having to do with the strange animals. He thought it was peon superstition. But now he was sure there was a rich mine to be raided.

"It's a tough part of the Grosso," he said, turning to Maget.

"Sure. Hard to carry enough water and supplies to make it. Say, Juan, who was that big Portuguee with Professor Gurlone? He's blind, ain't he? His eyes were white as milk, and his face tanned black as river mud. Surely is a great big guy, and tough looking, too."

Durkin drummed on the table, considering the matter, while Juan spoke of the big Portuguese. The swarthy man with the colorless blind eyes was Espinosa, former owner of the mine. He had sold part of his claim to the Gurlones, but had remained with them as an assistant. Though blind, he knew the depths of the mine and could feel his way about, and direct the peons in their labors.

"I've got it," said Durkin, turning back to Juan and Maget. "Juan, it's up to you. You've got to blaze the trail so we can follow you in. And you can steal food and cache it for use on the way, see? We'll come along a day or so after the Gurlones."

It took some persuading to make Juan consent to their plot, but the peon yielded at last to money and the promise of part of the spoils. "Maybe you can steal Gurlone's samples and they'll give us a line on what he's up to out there. Whether it's emeralds or diamonds or gold that they're taking out of the mine."

Juan was stupid and superstitious, like most of his fellows. He had obeyed orders, digging out the red ore, and that was all he knew. But prompted by the two tramps, he was ready for trouble, too.

Juan told them that Professor Gurlone carried a small lead case which he seemed to prize greatly.

"Get it, then," ordered Durkin.

The two tramps saw Gurlone's party start on the morrow. There were many cases of supplies loaded into launches, some marked Glass, Acids, and so on. Then there were boxes of food and various things needed in a jungle camp.

* * * * *

Juan, their tool, was working with the other peons, and at ten o'clock in the morning the launches set out, pushing into the current of the Madeira.

Old Gurlone, of the livid face, was in charge of one boat, and the gigantic Portuguese, with his colorless eyes and burned complexion, sat beside him.

That night, the two tropical tramps stole a small boat with a one-cylinder motor, and started up the river.

It was a hard journey, but they were used to river and jungle work, and the object they had in view was enough to make them discount trouble. They speculated upon what manner of treasure it was they would find in the cavern of the Matto Grosso mine. It might be precious stones, it might be gold. Certainly it was something very valuable.

They carried little supplies, but they were heavily armed. For food, they might hunt and also depend on the caches left by their friend, Juan the peon.

Three hundred miles from Manaos, they came to the landing where old Gurlone had unloaded his boats. The two tramps drew their own craft up on shore a quarter of a mile away, keeping out of sight, and hid the boat in dense brush. Then they crept up the river bank, keeping out of sight of the boatmen, who were preparing for the return voyage, and cut into the jungle so as to strike the trail of the caravan ahead.

For several hours they followed the path easily. They found palm trees blazed with new marks, and these they were sure their friend Juan had left for them. But the trail was easy to keep without these. The supplies had been loaded on burros, which had been awaiting the boats.

That night, they camped beside a small stream. They were but twenty-four hours behind Professor Gurlone and his party, and the food Juan had cached for them was in good condition.

* * * * *

They were up at daybreak, and pressed on, armed to the teeth and ready for a fight.

"What's that?" said Durkin, stopping so suddenly that Maget ran into him.

They had been walking at a swift pace along the jungle path, the giant trees forming a canopy overhead. Monkeys screamed at them, birds flitted a hundred feet above them in the roof of the forest.

The sun beat on the jungle top, but few rays lightened the gloom beneath.

From up ahead sounded a frightful scream, followed by a long drawn out wailing. Maget glanced at Durkin, and the latter shrugged, and pressed on. But he gripped his rifle tightly, for the cries were eery.

From time to time the two stopped to catch better the direction of the wails. At last, they located the spot where the injured person lay.

It was under a great bombax tree, and on the shaded ground writhed a man. The two stopped, horrified at the squirming figure. The man was tearing at his face with his nails, and his countenance was bloody with long scratches.

He cursed and moaned in Spanish, and Durkin, approaching closer, recognized Juan the peon.

"Hey, Juan, what the hell's the matter? A snake bite you?"

The bronzed face of the sturdy little peon writhed in agony. He screamed in answer, he could not talk coherently. He mumbled, he groaned, but they could not catch his words.

At his side lay a small lead container, and closer, as though he had dropped it after extracting it from its case, lay a tube some six inches in length. It was a queer tube, for it seemed to be filled with smoky, pallid worms of light that writhed even as Juan writhed.

"What's the trouble?" asked Durkin gruffly, for he was alarmed at the behavior of the peon. It seemed to both tramps that the man must have gone mad.

* * * * *

They kept back from him, with ready guns. Juan shrieked, and it sounded as though he said he was burning up, in a great fire.

Suddenly the peon staggered to his feet; as he pushed himself up, his hands gripped the tube, and he clawed at his face.

Perplexity and horror were writ on the faces of the two tramps. Maget was struck with pity for the unfortunate peon, who seemed to be suffering the tortures of the damned. He was not a bad man, was Maget, but rather a weakling who had a run of bad luck and was under the thumb of Durkin, a really hard character. Durkin, while astounded at the actions of Juan, showed no pity.

Maget stepped forward, to try and comfort Juan; the peon struck out at him, and whirled around. But a few yards away was the bank of the stream, and Juan crashed into a black palm set with spines, caromed off it, and fell face downward into the water. The glass tube was smashed and the pieces fell into the stream.

"God, he must be blind," groaned Maget. "Poor guy, I've got to save him."

"The hell with him," growled Durkin. He grasped his partner's arm and stared curiously down at the dying peon.

"Let go, I'll pull him out," said Maget, trying to wrench away from Durkin.

"He's done for. Why worry about a peon?" said Durkin. "Look at those fish!"

The muddy waters of the stream had parted, and dead fish were rising about the body of Juan. But not about the dying man so much as close to the spot where the broken tube had fallen. White bellies up, the fish died as though by magic.

"Let's—let's get the hell back to Manoas, Bill," said Maget in a sickly voice. "This—this is too much for me."

* * * * *

A nameless fear, which had been with Maget ever since the beginning of the venture, was growing more insistent.

"What?" cried Durkin. "Turn back now? The hell you say! That damn peon got into a fight with somebody and maybe got bit by a snake later. We'll go on and get that treasure."

"But—but what made those fish come up that way?" said Maget, his brows creased in perplexity.

Durkin shrugged. "What's the difference? We're O. K., ain't we?"

In spite of the stout man's bravado, it was evident that he, too, was disturbed at the strange happenings. He kept voicing aloud the question in his mind; what was in the queer tube?

But he forced Maget to go on. Without Juan, the peon, to leave them caches of food on the trail, they would have a difficult time getting provender, but both were trained jungle travelers and could find fruit and shoot enough game to keep them going.

Day after day they marched on, not far from the rear of the party before them. They took care to keep off Gurlone's heels, for they did not wish their presence to be discovered.

When they had been on the journey, which led them east, for four days, the two rascals came to a waterless plateau, which stretched before them in dry perspective. Before they came to the end of this, they knew what real thirst was, and their tongues were black in their mouths before they caught the curling smoke of fires in the valley where they knew the mine must be.

"That's the mine," gasped Durkin, pointing to the smoke.

* * * * *

The sun was setting in golden splendor at their backs; they crept forward, using great boulders and piles of reddish earth, strange to them, for cover. Finally they reached the trail which led to the hills overlooking the valley, and a panorama spread before them which amazed them because of its elaborateness.

It seemed more like a stage scene than a wilderness picture. Straight ahead of them, as they lay flat on their stomachs and peered at the big camp, yawned the black mouth of a large cavern. This, they were sure, was the mine itself. Close by this mouth stood a stone hut. It was clear that this building had something to do with the ore, perhaps a refining plant, Durkin suggested.

There were long barracks for the peons, inside a barbed wire enclosure, and they could see the little men lounging now about campfires, where frying food was being prepared. Also, there was a long, low building with many windows in it, and houses for supplies and for the use of the owners of the camp.

"Looks like they were ready in case of a fight," said Durkin at last. "That fence around the peons looks like they might be havin' trouble."

"Some camp," breathed Maget.

"We got to find somethin' to drink," said Durkin. "Come on."

They worked their way about the rim of the valley, and in doing so caught glimpses of Professor Gurlone, the elderly man they had spotted in Manaos, and also saw the big Portuguese with his sightless eyes.

At the other side of the valley, they came on a spring which flowed to the east and disappeared under ground farther down.

"Funny water, ain't it?" said Durkin, lying down on his stomach to suck up the milky water.

But they were not in any mood to be particular about the fluids they drank. The long dry march across the arid lands separating the camp from the rest of the world had taken all moisture from their throats.

* * * * *

Maget, drinking beside his partner, saw that the water glinted and sparkled, though the sun was below the opposite rim of the valley. It seemed that greenish, silvery specks danced in the milky fluid.

"Boy, that's good," Durkin finally found time to say, "I feel like I could fight a wildcat."

The water did, indeed, impart a feeling of exhilaration to the two tramps. They crept up close to the roof of the parallel shaft which they had seen from the other side of the valley, and looked down into the camp again.

Professor Gurlone of the livid face and Espinosa the blind Portuguese, were talking to a big man whose golden beard shone in the last rays of the sun.

"That's the old bird's son," said Durkin, "that Juan told us about. Young Gurlone."

A rumbling, pleasant laugh floated on the breeze, issuing from the big youth's throat. The wind was their way, now, and the valley breathed forth an unpleasant odor of chemicals and tainted meat.

"Funny place," said Maget. "Say, I got a hell of a headache, Bill."

"So've I," grunted Durkin. "Maybe that water ain't as good as it seemed at first."

* * * * *

They lay in a small hollow, watching the activity of the camp. The peons were in their pen, and it was evident that they were being watched by the owners of the camp.

As purple twilight fell across the strange land, the two tramps began to notice the dull sounds which came to their ears from time to time.

"That's funny thunder," said Maget nervously. "If I didn't know it was thunder, I'd swear some big frogs were around here."

"Oh, hell. Maybe it's an earthquake," said Durkin irritatedly. "For God's sake, quit your bellyachin'. You've done nothin' but whine ever since we left Juan."

"Well, who could blame me—" began Maget. He broke off suddenly, the pique in his voice turned to a quiver of fear, as he grasped Durkin's arm. "Oh, look," he gasped.

Durkin, seeing his partner's eyes staring at a point directly behind him, leaped up and scrambled away, thinking that a snake must be about to strike him.

He turned round when he felt he was far enough away, and saw that the ground was moving near the spot where he had been lying.

The earth was heaving, as though ploughed by a giant share; a blunt, purplish head, which seemed too fearful to be really alive, showed through the broken ground, and a worm began to draw its purple length from the depths. It was no snake, but a gigantic angleworm, and as it came forth, foot after foot, the two watched with glazed eyes.

Maget swallowed. "I've seen 'em two feet long," he said. "But never like that."

Durkin, however, when he realized that the loathsome creature could not see them and was creeping blindly towards them with its ugly, fat body creasing and elongating, picked up rocks and began to destroy the monstrous worm. He cursed as he worked.

Dull red blood spattered them, and a fetid odor from the gashes caused them to retch, but they finally cut the thing in two, and then they moved away from there.

* * * * *

The dull rumblings beneath them frightened Maget, and Durkin too, though the latter tried to brazen it out.

"Come on, it's gettin' dark. We can take a look in their mine now."

Maget, whimpering, followed. The booming sounds were increasing.

But Durkin slipped down the hillside, and Maget followed into the valley. They crept past the stone shack, which they noticed was padlocked heavily.

Durkin stopped suddenly, and cursed. "I've cut my foot," he said. "These damn shoes are gone, all right, from that march. But come on, never mind."

They crept to the mouth of the cavern and peered in. "Ugh," said Maget.

He drew back with a shudder. The floor of the mine was covered with a grey slush, in which were seething white masses of slugs weaving in the slime. A powerful, rotten odor breathed in their faces, as though they stood in the mouth of a great giant.

"Ah!" yelled Durkin, throwing his arms across his face.

The greenish, ghostly light which emanated from the slime was weaker than moonlight, just enough to see by; a vast shadow hovered above their heads, as though a gigantic bat flew there. The sweep and beat of great wings drove them back, and they fled in terror from such awful corruption.

But the flying monster, with a wing spread of eight feet, dashed past them, and silhouetted against the rising moon like a goblin. Then came another, and finally a flock of the big birds.

Durkin and Maget ran away, passing the stone house which stood near the cavern's mouth. The booming sounds from the bowels of the earth filled their ears now, and it was not thunder; no, it issued from the depths of the mine.

"We—we got to get somethin' to eat," said Durkin, as they paused near one of the shacks, in which shone a light.

* * * * *

Sounds of voices came from the interior. They crept closer, and listened outside the window. Inside, they could see Espinosa, Gurlone senior, and the big youth with the golden beard, Gurlone junior.

"Yes, father," the young man was saying. "I believe we had better leave, at once. It's getting dangerous. I've reached the five million mark now, with the new process, and it is ready to work with or sell, just as we wish."

"Hear that?" whispered Durkin triumphantly. "Five million!"

"It's all ready, in the stone house," said young Gurlone.

"Why should we leave now?" said old Gurlone, his livid face working. "Now, when we are just at the point of success in our great experiments? So far, while we have struck many creatures of abnormal growth, still, we have overcome them."

"Well, father, there is something in the mine now which makes it too dangerous to work. That is, until they are put out of the way. You can hear them now."

The three inside the shack listened, and so did Durkin and Maget. The booming sounds swelled louder and the earth of the valley shook.

"I t'ink we better go," said Espinosa gruffly. "I agree with your son, Professor."

"No, no. We can conquer this, what ever it is."

"You see, father, while you were away, we broke through into a natural cavern, an underground river. It was then that the trouble started. You know the effect of the stuff on the insects and birds. It enlarged a cricket one hundred times. You saw that yourself. Six of the peons have disappeared—they didn't run away, either. They went down the shaft and never came back."

"Oh, they probably fell into the water and drowned," said old Gurlone impatiently. "Even if they did not, we can kill anything with these large bore rifles."

"We'd better pull out and let it alone for a while," said young Gurlone gravely. "The peons have been trying to bolt for several days. They'd be gone now if I hadn't penned them in and electrified the fence."

* * * * *

Maget put his hand on his friend's shoulder. "I'm starving," he whispered.

Durkin nodded, and they turned away, toward what they had marked as a supply shack. They heard a low murmur from the peons' pen, as they began to break off the hasps of the lock which held the door of the storehouse.

They got inside with little trouble, and began to feel about in the dark for food. They located biscuits and canned goods which they split open, and these they wolfed hungrily, listening carefully for sounds from outside.

"Here they come," said Maget, gripping Durkin's arm.

They looked out the window of the supply shack, and saw old Gurlone issue from the building outside which the two tramps had been listening. In one hand, the old Professor, brave as a lion, carried an old fashioned double-barreled elephant gun, and the rays from a powerful electric torch shone across the barrel.

At least, they thought the bizarre figure was old Gurlone, from the size. For the man was clad in a black, shiny suit, and over his head was a flapping hood of the same material in which were large eyeholes of green glass. Behind this strange form came a larger one, armed also with a big bore rifle and with another powerful flashlight.

The blind Portuguese was armed, too, but he was not clad in the black suit. He took his stand beside the mouth of the cavern, and waited while the two Gurlones entered the mine.

"My foot hurts," said Durkin suddenly, breaking the silence.

"I'm going out and see what happens," said Maget.

* * * * *

Durkin limped after Maget, who now took the lead. They crept close as possible to the mine opening, and saw the big Portuguese standing there in silence, listening carefully. Any sounds the two might have made were drowned in the great bellowing from within the cavern.

These noises, so like the croak of bullfrogs but magnified a thousand times, were terrifying to the heart.

The sweep of wings sounded on the night air, and Espinosa drew back and squatted close to the ground, as immense green creatures, flying on dusty wings, issued from the mine.

"God, those are moths," breathed Maget.

Yes, unmistakably, they were moths, as large as condors. The green ones, but for their size, were lunar moths, familiar enough to the two tramps. More bats came, disturbed by the entrance of the two Gurlones.

Durkin broke, then. "I'm—I'm—I guess you're right, Maget," he whispered, in a terrified voice. "We should have never come. If my foot wasn't hurt, I'd start for the river now. Curse it, what a place!"

The booming, vast croaks filled the whole valley, reverberating through the hills. Wails sounded from the peon camp.

The big Portuguese was shouting to the Gurlones. "Come out, come out!"

Maget gripped his own rifle, and stood up, bravely. His fear, though it was great, seemed to have brought out the better side of the man, while Durkin, so brave at first, had cracked under the strain.

"Look out, they'll see you," whimpered Durkin.

Maget strode forward. A blast of fetid, stinking air struck his face, and he choked. The noises were now ear-splitting, but above the bellows came the sounds of the big rifles, the echoes booming through the recesses of the cavern.

Then the two Gurlones, running madly, burst from the mine entrance.

"Run," they screamed. "Run for your life, Espinosa!"

"I'll help you," cried Maget, and Durkin could detain him no longer.

* * * * *

The Gurlones hardly noticed the newcomer, as they ran madly towards the shelter of their houses. Espinosa joined them, going swiftly in spite of his blind eyes.

The croaking made Maget's brain scream with the immensity of the sound. Luminous, white disks, three feet in diameter, glared at him, and the creature, which progressed with jerky leaps toward him, almost filled the mouth of the mine.

It was hot in pursuit of the fleeing Gurlones. It squatted and then jumped, and presently it was out in the night air.

Its form was that of a gigantic frog, but it stood some twenty feet in height, and from its throat sounded the terrific bellowing which rivalled the thunder.

Maget bravely stepped forward, and began to fire into the huge, soft body. The great mouth opened, and as the dum-dum bullets tore gashes in the blackish green batrachian, the thunderous croaks took on a note of pain.

The odor of the creature was horrible. Maget could scarcely draw his breath as he fired the contents of the magazine into the big animal. Two more jumps brought the frog almost to Maget's feet, and the tropical tramp felt a whiskerlike tentacle touch his face, and bad smelling slime covered him.

The frog was blind, without doubt, from its underground life, but the tentacles seemed to be the way it finally located its prey, for it turned on Maget and made a final snap at him. The great jaws closed like the flap of hell, and Maget leaped back with a cry of triumphant terror.

* * * * *

The bullets had finally stopped the big frog, but at its heels came a strange, jellylike creature, not quite as bulky as the frog, but pushing along on its legs and with a tail some eight feet thick and fifteen feet in length. This, too, evidently a polywog, was blind, with whitened discs for eyes, but it slid along at a rapid rate because of its size. Maget's gun was empty; he turned so flee, but the polywog stopped and sniffed at the thick blood of its fellow. Then, to Maget's relief, it began to hungrily devour its companion.

Utterly filthy, and ferocious, the polywog in silence snapped great chunks from the dead giant frog.

"Hello. Who are you?"

Maget turned, having forgotten the amenities of life in the excitement. Professor Gurlone and his son, still clad in their black suits, but with their helmets off, were standing beside him, clutching their guns and lights.

The big Portuguese, Espinosa, appeared, and Durkin was beside him.

"Why," said Maget, between gasps, "we just happened to be out exploring, and we saw your camp. We were on our way in when we heard the noises and came to investigate."

"I see," said old Gurlone. "What made you head in this direction, and where's your outfit?"

"Oh, we cached most of it back there," said Maget. "My partner's hurt his foot, so he can't walk well. Isn't that so, Durkin?"

"Yeh," growled Durkin. "I got a sore foot, all right."

* * * * *

Old Gurlone was suspicious of the vague story which Maget and Durkin concocted as the explanation of their presence in the valley. But evidently the Professor was too worried about the situation in which he and his friends were, to question the two tramps very closely. In fact, he seemed rather glad that he had two more pairs of hands to aid him and he thanked Maget for his bravery.

They dispatched the great polywog as it tore its parent to bits, and then the five men, the two Gurlones, Espinoza, Maget, and the limping, cursing Durkin, retired to one of the shacks.

The living quarters of the Gurlones was quite elaborate. There were many books on rough shelves, and there was a small bench filled with glass phials and chemicals, though the main laboratory was in one of the long buildings.

Professor Gurlone poured drinks for the five, and welcomed Durkin and Maget as allies.

"We'll need every man we can get, if we are to cope with these great creatures," said old Gurlone. "The peons are too frightened to be of use. Luckily, it was a frog we came upon on the banks of the subterranean river. There is no telling how many more creatures of the same or greater size may be down there. We will have to destroy them, every one."

Maget and Durkin shuddered. "Say," blurted Durkin, his face working nervously, "how the hell did that frog get so big? I thought I was seein' things, Professor."

"No, no," said Professor Gurlone. "You see, the ore in the mine contains radium, that is, salts of radium. It is a pitchblende deposit, and it happens to be so rich in radium content that throughout the ages it has affected all the life in the cavern. The arid land surrounding the ore—this has been, generally, one of the characteristics of radium deposits—has kept most of the jungle creatures away, but underground beings such as reptiles, worms and frogs, have gradually become immune to the effects of the ore and have grown prodigiously and abnormally under the stimulation of the rays given off by the radium.

"Now, this is nothing strange in itself, but never before has such a rich deposit been discovered, so that the amounts of radium available have been too small to really check its effect on growth in animals. That is our chief scientific object in coming here: we realized, from Senor Espinosa's description of the played-out silver mine he had, and from his loss of sight, that he had stumbled upon a valuable deposit of radium. It usually occurs with silver, that is, the uranium mother ore does, through the disintegration of which radium is formed. The content of radium per ton in this ore proved unbelievably rich: we were delighted. I have always suspected that the animal cell might be stimulated into abnormal growth by exposure to radium salts, for such a thing already has been hinted at in the scientific world. Not till our chance came here, however, has enough radium been available for the experiments."

* * * * *

Maget and Durkin listened with open mouths. Radium meant but vague things to them. They had heard of radium paint which shone in the dark on the dials of watches and clothes, but of the properties of the metal and its salts they were utterly ignorant.

"That radium stuff is what makes the funny light in that mine, then?" asked Maget.

"Exactly. The radio-activity of the elements in the ore give off the light. There are three rays, the alpha, beta and gamma, and—"

The professor forgot himself in a lecture on the properties of radium.

Durkin, breaking in, asked, slyly. "Is this radium worth as much as silver?"

Young Kenneth Gurlone laughed, and even old Professor Gurlone smiled. "Radium is worth more than gold or diamonds or platinum. Its value is fabulous. We have five million dollars worth already, in the form of the chloride."

"Whew," whistled Durkin.

He glanced sidewise at Maget.

"Yes," said Professor Gurlone, "five million dollars worth of it! Those great monsters who have been developed throughout the ages by the action of the radium rays on their bodies, causing them to grow so prodigiously, are but incidents. We must destroy them, so that our work cannot be interfered with. We must use dynamite, blow them to bits. They are powerful enough to crush the stone bank by the mine mouth and ruin the labors of the past two years, gentlemen."

Armed, and once more fortified with whiskey, the five made their way outside. The moon was darkened by an immense shadow, as one of the giant bats winged its way over their heads. But there were no more monster frogs. The ugly, bulky shapes of the dead polywog and its parent lay before them.

"We are safe for the moment," said Professor Gurlone. "Go and quiet the peons, Espinosa: they will listen to you."

* * * * *

The peons still wailed in terror; the blind Espinosa slipped silently away.

"Come," said Professor Gurlone, to his son and to Maget and Durkin. "I will show you the laboratory, so that you can understand better the effects of radium on growth."

The professor led them to the long, low, many-windowed building nearby, and flooded it with light. It contained cage after cage in which were monkeys, pumas, and various jungle folk. These creatures set up a chattering and howling at the light and intruders.