"Seaton, that is some silencer," whispered DuQuesne. "I didn't suppose a silencer could work that fast."

"They don't use powder," Seaton replied absently, all his faculties directed toward the next corner. "The bullets are propelled by an electrical charge."

In the same manner Dunark disposed of several more guards before the last stairway was reached.

* * * * *

"Seaton," he whispered in English, "now is the time we need your rapid pistol-work and your high-explosive shells. There must be hundreds of soldiers on the other side of that door, armed with machine-cannon shooting high-explosive shells at the rate of a thousand per minute. Our chance is this—their guns are probably trained upon the elevators and main stairways, since this passage is unused and none of us would be expected to know of it. Most of them don't know of it themselves. It will take them a second or two to bring their guns to bear upon us. We must do all the damage we can—kill them all, if possible—in that second or two. If Crane will lend me a pistol, we'll make the rush together."

"I've a better scheme than that," interrupted DuQuesne. "Next to you, Seaton, I'm the fastest man with a gun here. Also, like you, I can use both hands at once. Give me a couple of clips of those special cartridges and you and I will blow that bunch into the air before they know we're here."

It was decided that the two pistol experts should take the lead, closely followed by Crane and Dunark. The weapons were loaded to capacity and put in readiness for instant use.

"Let's go, bunch!" said Seaton. "The quicker we start the quicker we'll get back. Get ready to run out there, all the rest of you, as soon as the battle's over. Ready? On your marks—get set—go!"

He kicked the door open and there was a stuttering crash as the four automatic pistols simultaneously burst into practically continuous flame—a crash obliterated by an overwhelming concussion of sound as the X-plosive shells, sweeping the entire roof with a rapidly-opening fan of death, struck their marks and exploded. Well it was for the little group of wanderers that the two men in the door were past masters in the art of handling their weapons; well it was that they had in their tiny pistol-bullets the explosive force of hundreds of giant shells! For rank upon rank of soldiery were massed upon the roof; rapid-fire cannon, terrible engines of destruction, were pointing toward the elevators and toward the main stairways and approaches. But so rapid and fierce was the attack, that even those trained gunners had no time to point their guns. The battle lasted little more than a second, being over before either Crane or Dunark could fire a shot, and silence again reigned even while broken and shattered remnants of the guns and fragments of the metal and stone of the dock were still falling to the ground through a fine mist of what had once been men.

Assured by a rapid glance that not a single Mardonalian remained upon the dock, Seaton turned back to the others.

"Make it snappy, bunch! This is going to be a mighty unhealthy spot for us in a few minutes."

Dorothy threw her arms around his neck in relief. With one arm about her, he hastily led the way across the dock toward the Skylark, choosing the path with care because of the yawning holes blown into the structure by the terrific force of the explosions. The Skylark was still in place, held immovable by the attractor, but what a sight she was! Her crystal windows were shattered; her mighty plates of four-foot Norwegian armor were bent and cracked and twisted; two of her doors, warped and battered, hung awry from their broken hinges. Not a shell had struck her: all this damage had been done by flying fragments of the guns and of the dock itself; and Seaton and Crane, who had developed the new explosive, stood aghast at its awful power.

They hastily climbed into the vessel, and Seaton assured himself that the controls were uninjured.

"I hear battleships," Dunark said. "Is it permitted that I operate one of your machine guns?"

"Go as far as you like," responded Seaton, as he placed the women beneath the copper bar—the safest place in the vessel—and leaped to the instrument board. Before he reached it, and while DuQuesne, Crane, and Dunark were hastening to the guns, the whine of giant helicopter-screws was plainly heard. A ranging shell from the first warship, sighted a little low, exploded against the side of the dock beneath them. He reached the levers just as the second shell screamed through the air a bare four feet above them. As he shot the Skylark into the air under five notches of power, a steady stream of the huge bombs poured through the spot where, an instant before, the vessel had been. Crane and DuQuesne aimed several shots at the battleships, which were approaching from all sides, but the range was so extreme that no damage was done.

They heard the continuous chattering of the machine gun operated by the Kofedix, however, and turned toward him. He was shooting, not at the warships, but at the city rapidly growing smaller beneath them; moving the barrel of the rifle in a tiny spiral; spraying the entire city with death and destruction! As they looked, the first of the shells reached the ground, just as Dunark ceased firing for lack of ammunition. They saw the palace disappear as if by magic, being instantly blotted out in a cloud of dust—a cloud which, with a spiral motion of dizzying rapidity, increased in size until it obscured the entire city.

* * * * *

Having attained sufficient altitude to be safe from any possible pursuit and out of range of even the heaviest guns, Seaton stopped the vessel and went out into the main compartment to consult with the other members of the group, about their next move.

"It sure does feel good to get a breath of cool air, folks," he said, as he drew with relief a deep breath of the air, which, at that great elevation, was of an icy temperature and very thin. He glanced at the little group of Kondalians as he spoke, then leaped back to the instrument board with an apology on his lips—they were gasping for breath and shivering with the cold. He switched on the heating coils and dropped the Skylark rapidly in a long descent toward the ocean.

"If that is the temperature you enjoy, I understand at last why you wear clothes," said the Kofedix, as soon as he could talk.

"Do not your planes fly up into the regions of low temperature?" asked Crane.

"Only occasionally, and all high-flying vessels are enclosed and heated to our normal temperature. We have heavy wraps, but we dislike to wear them so intensely that we never subject ourselves to any cold."

"Well, there's no accounting for tastes," returned Seaton, "but I can't hand your climate a thing. It's hotter even than Washington in August; 'and that,' as the poet feelingly remarked, 'is going some!'

"But there's no reason for sitting here in the dark," he continued, as he switched on the powerful daylight lamps which lighted the vessel with the nearest approach to sunlight possible to produce. As soon as the lights were on, Dorothy looked intently at the strange women.

"Now we can see what color they really are," she explained to her lover in a low voice. "Why, they aren't so very different from what they were before, except that the colors are much softer and more pleasing. They really are beautiful, in spite of being green. Don't you think so, Dick?"

"They're a handsome bunch, all right," he agreed, and they were. Their skins were a light, soft green, tanned to an olive shade by their many fervent suns. Their teeth were a brilliant and shining grass-green. Their eyes and their long, thick hair were a glossy black.

The Kondalians looked at the Earthly visitors and at each other, and the women uttered exclamations of horror.

"What a frightful light?" exclaimed Sitar. "Please shut it off. I would rather be in total darkness than look like this!"

"What's the matter, Sitar?" asked the puzzled Dorothy as Seaton turned off the lights. "You look perfectly stunning in this light."

"They see things differently than we do," explained Seaton. "Their optic nerves react differently than ours do. While we look all right to them, and they look all right to us, in both kinds of light, they look just as different to themselves under our daylight lamps as we do to ourselves in their green light. Is that explanation clear?"

"It's clear enough as far as it goes, but what do they look like to themselves?"

"That's too deep for me—I can't explain it, any better than you can. Take the Osnomian color 'mlap,' for instance. Can you describe it?"

"It's a kind of greenish orange—but it seems as though it ought not to look like that color either."

"That's it, exactly. From the knowledge you received from the educator, it should be a brilliant purple. That is due to the difference in the optic nerves, which explains why we see things so differently from the way the Osnomians do. Perhaps they can describe the way they look to each other in our white light."

"Can you, Sitar?" asked Dorothy.

"One word describes it—'horrible.'" replied the Kondalian princess, and her husband added:

"The colors are distorted and unrecognizable, just as your colors are to your eyes in our light."

"Well, now that the color question is answered, let's get going. I pretty nearly asked you the way, Dunark—forgot that I know it as well as you do."

* * * * *

The Skylark set off at as high an altitude as the Osnomians could stand. As they neared the ocean several great Mardonalian battleships, warned of the escape, sought to intercept them; but the Skylark hopped over them easily, out of range of their heaviest guns, and flew onward at such speed that pursuit was not even attempted. The ocean was quickly crossed. Soon the space-car came to rest over a great city, and Seaton pointed out the palace; which, with its landing dock nearby, was very similar to that of Nalboon, in the capital city of Mardonale.

Crane drew Seaton to one side.

"Do you think it is safe to trust these Kondalians, any more than it was the others? How would it be to stay in the Lark instead of going into the palace?"

"Yes, Mart, this bunch can be trusted. Dunark has a lot of darn queer ideas, but he's square as a die. He's our friend, and will get us the copper. We have no choice now, anyway, look at the bar. We haven't an ounce of copper left—we're down to the plating in spots. Besides, we couldn't go anywhere if we had a ton of copper, because the old bus is a wreck. She won't hold air—you could throw a cat out through the shell in any direction. She'll have to have a lot of work done on her before we can think of leaving. As to staying in her, that wouldn't help us a bit. Steel is as soft as wood to these folks—their shells would go through her as though she were made of mush. They are made of metal that is harder than diamond and tougher than rubber, and when they strike they bore in like drill-bits. If they are out to get us they'll do it anyway, whether we're here or there, so we may as well be guests. But there's no danger, Mart. You know I swapped brains with him, and I know him as well as I know myself. He's a good, square man—one of our kind of folks."

Convinced, Crane nodded his head and the Skylark dropped toward the dock. While they were still high in air, Dunark took an instrument from his belt and rapidly manipulated a small lever. The others felt the air vibrate—a peculiar, pulsating wave, which, to the surprise of the Earthly visitors, they could read without difficulty. It was a message from the Kofedix to the entire city, telling of the escape of his party and giving the news that he was accompanied by two great Karfedo from another world. Then the pulsations became unintelligible, and all knew that he had tuned his instrument away from the "general" key into the individual key of some one person.

"I just let my father, the Karfedix, know that we are coming," he explained, as the vibrations ceased.

From the city beneath them hundreds of great guns roared forth a welcome, banners and streamers hung from every possible point, and the air became tinted and perfumed with a bewildering variety of colors and scents and quivered with the rush of messages of welcome. The Skylark was soon surrounded by a majestic fleet of giant warships, who escorted her with impressive ceremony to the landing dock, while around them flitted great numbers of other aircraft. The tiny one-man helicopters darted hither and thither, apparently always in imminent danger of colliding with some of their larger neighbors, but always escaping as though by a miracle. Beautiful pleasure-planes soared and dipped and wheeled like giant gulls; and, cleaving their stately way through the numberless lesser craft; immense multiplane passenger liners partially supported by helicopter screws turned aside from their scheduled courses to pay homage to the Kofedix of Kondal.

As the Skylark approached the top of the dock, all the escorting vessels dropped away and Crane saw that instead of the brilliant assemblage he had expected to see upon the landing-place there was only a small group of persons, as completely unadorned as were those in the car. In answer to his look of surprise, the Kofedix said, with deep feeling:

"My father, mother, and the rest of the family. They know that we, as escaped captives, would be without harness or trappings, and are meeting us in the same state."

* * * * *

Seaton brought the vessel to the dock near the little group, and the Earthly visitors remained inside their vessel while the rulers of Kondal welcomed the sons and daughters they had given up for dead.

After the affecting reunion, which was very similar to an earthly one under similar circumstances, the Kofedix led his father up to the Skylark and his guests stepped down upon the dock.

"Friends," Dunark began, "I have told you of my father, Roban, the Karfedix of Kondal. Father, it is a great honor to present to you those who rescued us from Mardonale—Seaton, Karfedix of Knowledge; Crane, Karfedix of Wealth; Miss Vaneman; and Miss Spencer. Karfedix DuQuesne," waving his hand toward him, "is a lesser Karfedix of Knowledge, captive to the others."

"The Kofedix Dunark exaggerates our services," deprecated Seaton, "and doesn't mention the fact that he saved all our lives. But for him we all should have been killed."

The Karfedix, disregarding Seaton's remark, acknowledged the indebtedness of Kondal in heartfelt accents before he led them back to the other party and made the introductions. As all walked toward the elevators, the emperor turned to his son with a puzzled expression.

"I know from your message, Dunark, that our guests are from a distant solar system, and I can understand your accident with the educator, but I cannot understand the titles of these men. Knowledge and wealth are not ruled over. Are you sure that you have translated their titles correctly?"

"As correctly as I can—we have no words in our language to express the meaning. Their government is a most peculiar one, the rulers all being chosen by the people of the whole nation...."

"Extraordinary!" interjected the older man. "How, then, can anything be accomplished?"

"I do not understand the thing myself, it is so utterly unheard-of. But they have no royalty, as we understand the term. In America, their country, every man is equal.

"That is," he hastened to correct himself, "they are not all equal, either, as they have two classes which would rank with royalty—those who have attained to great heights of knowledge and those who have amassed great wealth. This explanation is entirely inadequate and does not give the right idea of their positions, but it is as close as I can come to the truth in our language."

"I am surprised that you should be carrying a prisoner with you, Karfedo," said Roban, addressing Seaton and Crane. "You will, of course, be at perfect liberty to put him to death in any way that pleases you, just as though you were in your own kingdoms. But perchance you are saving him so that his death will crown your home-coming?"

The Kofedix spoke in answer while Seaton, usually so quick to speak, was groping for words.

"No, father, he is not to be put to death. That is another peculiar custom of the Earth-men; they consider it dishonorable to harm a captive, or even an unarmed enemy. For that reason we must treat the Karfedix DuQuesne with every courtesy due his rank, but at the same time he is to be allowed to do only such things as may be permitted by Seaton and Crane."

"Yet they do not seem to be a weak race," mused the older man.

"They are a mighty race, far advanced in evolution," replied his son. "It is not weakness, but a peculiar moral code. We have many things to learn from them, and but few to give them in return. Their visit will mean much to Kondal."

* * * * *

During this conversation they had descended to the ground and had reached the palace, after traversing grounds even more sumptuous and splendid than those surrounding the palace of Nalboon. Inside the palace walls the Kofedix himself led the guests to their rooms, accompanied by the major-domo and an escort of guards. He explained to them that the rooms were all inter-communicating, each having a completely equipped bathroom.

"Complete except for cold water, you mean," said Seaton with a smile.

"There is cold water," rejoined the other, leading him into the bathroom and releasing a ten-inch stream of lukewarm water into the small swimming pool, built of polished metal, which forms part of every Kondalian bathroom. "But I am forgetting that you like extreme cold. We will install refrigerating machines at once."

"Don't do it—thanks just the same. We won't be here long enough to make it worth while."

Dunark smilingly replied that he would make his guests as comfortable as he could, and after informing them that in one kam he would return and escort them in to koprat, took his leave. Scarcely had the guests freshened themselves when he was back, but he was no longer the Dunark they had known. He now wore a metal-and-leather harness which was one blaze of precious gems, and a leather belt hung with jeweled weapons replaced the familiar hollow girdle of metal. His right arm, between the wrist and the elbow, was almost covered by six bracelets of a transparent metal, deep cobalt-blue in color, each set with an incredibly brilliant stone of the same shade. On his left wrist he wore an Osnomian chronometer. This was an instrument resembling the odometer of an automobile, whose numerous revolving segments revealed a large and constantly increasing number—the date and time of the Osnomian day, expressed in a decimal number of the karkamo of Kondalian history.

"Greetings, oh guests from Earth! I feel more like myself, now that I am again in my trappings and have my weapons at my side. Will you accompany me to koprat, or are you not hungry?" as he attached the peculiar timepieces to the wrists of the guests, with bracelets of the deep-blue metal.

"We accept with thanks," replied Dorothy promptly. "We're starving to death, as usual."

As they walked toward the dining hall, Dunark noticed that Dorothy's eyes strayed toward his bracelets, and he answered her unasked question:

"These are our wedding rings. Man and wife exchange bracelets as part of the ceremony."

"Then you can tell whether a man is married or not, and how many wives he has, simply by looking at his arm? We should have something like that on Earth, Dick—then married men wouldn't find it so easy to pose as bachelors!"

Roban met them at the door of the great dining hall. He also was in full panoply, and Dorothy counted ten of the heavy bracelets upon his right arm as he led them to places near his own. The room was a replica of the other Osnomian dining hall they had seen and the women were decorated with the same barbaric splendor of scintillating gems.

After the meal, which was a happy one, taking the nature of a celebration in honor of the return of the captives, DuQuesne went directly to his room while the others spent the time until the zero hour in strolling about the splendid grounds, always escorted by many guards. Returning to the room occupied by the two girls, the couples separated, each girl accompanying her lover to the door of his room.

Margaret was ill at ease, though trying hard to appear completely self-possessed.

"What is the matter, sweetheart Peggy?" asked Crane, solicitously.

"I didn't know that you...." she broke off and continued with a rush: "What did the Kofedix mean just now, when he called you the Karfedix of Wealth?"

"Well, you see, I happen to have some money...." he began.

"Then you are the great M. Reynolds Crane?" she interrupted, in consternation.

"Leave off 'the great,'" he said, then, noting her expression, he took her in his arms and laughed slightly.

"Is that all that was bothering you? What does a little money amount to between you and me?"

"Nothing—but I'm awfully glad that I didn't know it before," she replied, as she returned his caress with fervor. "That is, it means nothing if you are perfectly sure I'm not...."

Crane, the imperturbable, broke a life-long rule and interrupted her.

"Do not say that, dear. You know as well as I do that between you and me there never have been, are not now, and never shall be, any doubts or any questions."

* * * * *

"If I could have a real cold bath now, I'd feel fine," remarked Seaton, standing in his own door with Dorothy by his side. "I'm no blooming Englishman but in weather as hot as this I sure would like to dive into a good cold tank. How do you feel after all this excitement, Dottie? Up to standard?"

"I'm scared purple," she replied, nestling against him, "or, at least, if not exactly scared, I'm apprehensive and nervous. I always thought I had good nerves, but everything here is so horrible and unreal, that I can't help but feel it. When I'm with you I really enjoy the experience, but when I'm alone or with Peggy, especially in the sleeping-period, which is so awfully long and when it seems that something terrible is going to happen every minute, my mind goes off in spite of me into thoughts of what may happen. Why, last night, Peggy and I just huddled up to each other in a ghastly yellow funk—dreading we knew not what—the two of us slept hardly at all."

"I'm sorry, little girl," replied Seaton, embracing her tenderly, "sorrier than I can say. I know that your nerves are all right, but you haven't roughed it enough, or lived in strange environments enough, to be able to feel at home. The reason you feel safer with me is that I feel perfectly at home here myself, not that your nerves are going to pieces or anything like that. It won't be for long, though, sweetheart—as soon as we get the chariot fixed up we'll beat it back to the Earth so fast it'll make your head spin."

"Yes, I think that's the reason, lover. I hope you won't think I'm a clinging vine, but I can't help being afraid of something here every time I'm away from you. You're so self-reliant, so perfectly at ease here, that it makes me feel the same way."

"I am perfectly at ease. There's nothing to be afraid of. I've been in hundreds of worse places, right on Earth. I sure wish I could be with you all the time, sweetheart girl—only you can understand just how much I wish it—but, as I said before, it won't be long until we can be together all the time."

Dorothy pushed him into his room, followed him within it, closed the door, and put both hands on his arm.

"Dick, sweetheart," she whispered, while a hot blush suffused her face, "you're not as dumb as I thought you were—you're dumber! But if you simply won't say it, I will. Don't you know that a marriage that is legal where it is performed is legal anywhere, and that no law says that the marriage must be performed upon the Earth?"

He pressed her to his heart in a mighty embrace, and his low voice showed in every vibration the depth of the feeling he held for the beautiful woman in his arms as he replied:

"I never thought of that, sweetheart, and I wouldn't have dared mention it if I had. You're so far away from your family and your friends that it would seem...."

"It wouldn't seem anything of the kind," she broke in earnestly. "Don't you see, you big, dense, wonderful man, that it is the only thing to do? We need each other, or at least, I need you, so much now...."

"Say 'each other'; it's right," declared her lover with fervor.

"It's foolish to wait. Mother would like to have seen me married, of course; but there will be great advantages, even on that side. A grand wedding, of the kind we would simply have to have in Washington, doesn't appeal to me any more than it does to you—and it would bore you to extinction. Dad would hate it, too—it's better all around to be married here."

Seaton, who had been trying to speak, silenced her.

"I'm convinced, Dottie, have been ever since the first word. If you can see it that way I'm so glad that I can't express it. I've been scared stiff every time I thought of our wedding. I'll speak to the Karfedix the first thing in the morning, and we'll be married tomorrow—or rather today, since it is past the zero kam," as he glanced at the chronometer upon his wrist, which, driven by wireless impulses from the master-clock in the national observatory, was clicking off the darkamo with an almost inaudible purr of its smoothly-revolving segments.

"How would it be to wake him up and have it done now?"

"Oh, Dick, be reasonable! That would never do. Tomorrow will be most awfully sudden, as it is! And Dick, please speak to Martin, will you? Peggy's even more scared than I am, and Martin, the dear old stupid, is even less likely to suggest such a thing as this kind of a wedding than you are. Peggy's afraid to suggest it to him."

"Woman!" he said in mock sternness, "Is this a put-up job?"

"It certainly is. Did you think I had nerve enough to do it without help?"

Seaton turned and opened the door.

"Mart! Bring Peggy over here!" he called, as he led Dorothy back into the girls' room.

"Heavens, Dick, be careful! You'll spoil the whole thing!"

"No, I won't. Leave it to me—I bashfully admit that I'm a regular bear-cat at this diplomatic stuff. Watch my smoke!"

"Folks," he said, when the four were together, "Dottie and I have been talking things over, and we've decided that today's the best possible date for a wedding. Dottie's afraid of these long, daylight nights, and I admit that I'd sleep a lot sounder if I knew where she was all the time instead of only part of it. She says she's willing, provided you folks see it the same way and make it double. How about it?"

Margaret blushed furiously and Crane's lean, handsome face assumed a darker color as he replied:

"A marriage here would, of course, be legal anywhere, provided we have a certificate, and we could be married again upon our return if we think it desirable. It might look as though we were taking an unfair advantage of the girls, Dick, but considering all the circumstances, I think it would be the best thing for everyone concerned."

He saw the supreme joy in Margaret's eyes, and his own assumed a new light as he drew her into the hollow of his arm.

"Peggy has known me only a short time, but nothing else in the world is as certain as our love. It is the bride's privilege to set the date, so I will only say that it cannot be too soon for me."

"The sooner the better," said Margaret, with a blush that would have been divine in any earthly light, "did you say 'today,' Dick?"

"I'll see the Karfedix as soon as he gets up," he answered, and walked with Dorothy to his door.

"I'm just too supremely happy for words," Dorothy whispered in Seaton's ear as he bade her good-night. "I won't be able to sleep or anything!"



CHAPTER XVI

An Osnomian Marriage

Seaton awoke, hot and uncomfortable, but with a great surge of joy in his heart—this was his wedding day! Springing from the bed, he released the full stream of the "cold" water, filling the tank in a few moments. Poising lightly upon the edge, he made a clean, sharp dive, and yelled in surprise as he came snorting to the surface. For Dunark had made good his promise—the water was only a few degrees above the freezing point! After a few minutes of vigorous splashing in the icy water, he rubbed himself down with a coarse towel, shaved, threw on his clothes, and lifted his powerful, but musical, bass voice in the wedding chorus from "The Rose Maiden."

"Rise, sweet maid, arise, arise, Rise, sweet maid, arise, arise, 'Tis the last fair morning for thy maiden eyes,"

he sang lustily, out of his sheer joy in being alive, and was surprised to hear Dorothy's clear soprano, Margaret's pleasing contralto, and Crane's mellow tenor chime in from the adjoining room. Crane threw open the door and Seaton joined the others.

"Good morning. Dick, you sound happy," said Crane.

"Who wouldn't be? Look what's doing today," as he ardently embraced his bride-to-be. "Besides, I found some cold water this morning."

"Everyone in the palace heard you discovering it," dryly returned Crane, and the girls laughed merrily.

"It surprised me at first," admitted Seaton, "but it's great after a fellow once gets wet."

"We warmed ours a trifle," said Dorothy. "I like a cold bath myself, but not in ice-water."

All four became silent, thinking of the coming event of the day, until Crane said:

"They have ministers here, I know, and I know something of their religion, but my knowledge is rather vague. You know more about it than we do, Dick, suppose you tell us about it while we wait."

Seaton paused a moment, with an odd look on his face. As one turning the pages of an unfamiliar book of reference, he was seeking the answer to Crane's question in the vast store of Osnomian information received from Dunark. His usually ready speech came a little slowly.

"Well, as nearly as I can explain it, it's a funny kind of a mixture—partly theology, partly Darwinism, or at least, making a fetish of evolution, and partly pure economic determinism. They believe in a Supreme Being, whom they call the First Cause—that is the nearest English equivalent—and they recognize the existence of an immortal and unknowable life-principle, or soul. They believe that the First Cause has decreed the survival of the fittest as the fundamental law, which belief accounts for their perfect physiques...."

"Perfect physiques? Why, they're as weak as children," interrupted Dorothy.

"Yes, but that is because of the smallness of the planet," returned Seaton. "You see, a man of my size weighs only eighty-six pounds here, on a spring balance, so he would need only the muscular development of a boy of twelve or so. In a contest of strength, either of you girls could easily handle two of the strongest men upon Osnome. In fact, the average Osnomian could stand up on our Earth only with the greatest difficulty. But that isn't the fault of the people; they are magnificently developed for their surroundings. They have attained this condition by centuries of weeding out the unfit. They have no hospitals for the feeble-minded or feeble-bodied—abnormal persons are not allowed to live. The same reasoning accounts for their perfect cleanliness, moral and physical. Vice is practically unknown. They believe that clean living and clean thinking are rewarded by the production of a better physical and mental type...."

"Yes, especially as they correct wrong living by those terrible punishments the Kofedix told us about," interrupted Margaret.

"That probably helps some. They also believe that the higher the type is, the faster will evolution proceed, and the sooner will mankind reach what they call the Ultimate Goal, and know all things. Believing as they do that the fittest must survive, and thinking themselves, of course, the superior type, it is ordained that Mardonale must be destroyed utterly, root and branch. They believe that the slaves are so low in the scale, millions of years behind in evolution, that they do not count. Slaves are simply intelligent and docile animals, little more than horses or oxen. Mardonalians and savages are unfit to survive and must be exterminated.

"Their ministers are chosen from the very fittest. They are the strongest, cleanest-living, and most vigorous men of this clean and vigorous nation, and are usually high army officers as well as ministers."

* * * * *

An attendant announced the coming of the Karfedix and his son, to pay the call of state. After the ceremonious greetings had been exchanged, all went into the dining hall for darprat. As soon as the meal was over, Seaton brought up the question of the double wedding that kokam, and the Karfedix was overjoyed.

"Karfedix Seaton," he said earnestly, "nothing could please us more than to have such a ceremony performed in our palace. Marriage between such highly-evolved persons as are you four is wished by the First Cause, whose servants we are. Aside from that, it is an unheard-of honor for any ruler to have even one karfedix married beneath his roof, and you are granting me the privilege of two! I thank you, and assure you that we will do our poor best to make the occasion memorable."

"Don't do anything fancy," said Seaton hastily. "A simple, plain wedding will do."

Unheeding Seaton's remark, the Karfedix took his wireless from its hook at his belt and sent a brief message.

"I have summoned Karbix Tarnan to perform the ceremony. Our usual time for ceremonies is just before koprat—is that time satisfactory to you?"

Assured that it was, he turned to his son.

"Dunark, you are more familiar than I with the customs of our illustrious visitors. May I ask you to take charge of the details?"

While Dunark sent a rapid succession of messages, Dorothy whispered to Seaton:

"They must be going to make a real function of our double wedding, Dick. The Karbix is the highest dignitary of the church, isn't he?"

"Yes, in addition to being the Commander-in-Chief of all the Kondalian armies. Next to the Karfedix he is the most powerful man in the empire. Something tells me, Dottie, that this is going to be SOME ceremony!"

As Dunark finished telegraphing, Seaton turned to him.

"Dorothy said, a while ago, that she would like to have enough of that tapestry-fabric for a dress. Do you suppose it could be managed?"

"Certainly. In all state ceremonials we always wear robes made out of the same fabric as the tapestries, but much finer and more delicate. I would have suggested it, but thought perhaps the ladies would prefer their usual clothing. I know that you two men do not care to wear our robes?"

"We will wear white ducks, the dressiest and coolest things we have along," replied Seaton. "Thank you for your offer, but you know how it is. We should feel out of place in such gorgeous dress."

"I understand. I will call in a few of our most expert robe-makers, who will weave the gowns. Before they come, let us decide upon the ceremony. I think you are familiar with our marriage customs, but I will explain them to make sure. Each couple is married twice. The first marriage is symbolized by the exchange of plain bracelets and lasts four karkamo, during which period divorce may be obtained at will. The children of such divorced couples formerly became wards of the state, but in my lifetime I have not heard of there being any such children—all divorces are now between couples who discover their incompatibility before children are conceived."

"That surprises me greatly," said Crane. "Some system of trial-marriage is advocated among us on Earth every few years, but they all so surely degenerate into free love that no such system has found a foothold."

"We are not troubled in that way at all. You see, before the first marriage, each couple, from the humblest peasantry to the highest royalty, must submit to a mental examination. If they are marrying for any reason at all other than love, such as any thought of trifling in the mind of the man, or if the woman is marrying him for his wealth or position, he or she is summarily executed, regardless of station."

No other questions being asked, Dunark continued:

"At the end of four karkamo the second marriage is performed, which is indissoluble. In this ceremony jeweled bracelets are substituted for the plain ones. In the case of highly-evolved persons it is permitted that the two ceremonies be combined into one. Then there is a third ceremony, used only in the marriage of persons of the very highest evolution, in which the 'eternal' vows are taken and the faidon, the eternal jewel, is exchanged. As you are all in the permitted class, you may use the eternal ceremony if you wish."

"I think we all know our minds well enough to know that we want to be married for good—the longer the better," said Seaton, positively. "We'll make it the eternal, won't we, folks?"

"I should like to ask one question," said Crane, thoughtfully. "Does that ceremony imply that my wife would be breaking her vows if she married again upon my death?"

"Far from it. Numbers of our men are killed every karkam. Their wives, if of marriageable age, are expected to marry again. Then, too, you know that most Kondalian men have several wives. No matter how many wives or husbands may be linked together in that way, it merely means that after death their spirits will be grouped into one. Just as in your chemistry," smiling in comradely fashion at Seaton, "a varying number of elements may unite to form a stable compound."

* * * * *

After a short pause, the speaker went on:

"Since you are from the Earth and unaccustomed to bracelets, rings will be substituted for them. The plain rings will take the place of your Earthly wedding rings, the jeweled ones that of your engagement rings. The only difference is that while we discard the plain bracelets, you will continue to wear them. Have you men any objections to wearing the rings during the ceremony? You may discard them later if you wish and still keep the marriage valid."

"Not I! I'll wear mine all my life," responded Seaton earnestly, and Crane expressed the same thought.

"There is only one more thing," added the Kofedix. "That is, about the mental examination. Since it is not your custom, it is probable that the justices would waive the ruling, especially since everyone must be examined by a jury of his own or a superior rank, so that only one man, my father alone, could examine you."

"Not in a thousand years!" replied Seaton emphatically. "I want to be examined, and have Dorothy see the record. I don't care about having her put through it, but I want her to know exactly the kind of a guy she is getting."

Dorothy protested at this, but as all four were eager that they themselves should be tested, the Karfedix was notified and Dunark clamped sets of multiple electrodes, connected to a set of instruments, upon the temples of his father, Dorothy, and Seaton. He pressed a lever, and instantly Dorothy and Seaton read each other's minds to the minutest detail, and each knew that the Karfedix was reading the minds of both.

After Margaret and Crane had been examined, the Karfedix expressed himself as more than satisfied.

"You are all of the highest evolution and your minds are all untainted by any base thoughts in your marriage. The First Cause will smile upon your unions," he said solemnly.

"Let the robe-makers appear," the Karfedix ordered, and four women, hung with spools of brilliantly-colored wire of incredible fineness and with peculiar looms under their arms, entered the room and accompanied the two girls to their apartment.

As soon as the room was empty save for the four men, Dunark said:

"While I was in Mardonale, I heard bits of conversation regarding an immense military discovery possessed by Nalboon, besides the gas whose deadly effects we felt. I could get no inkling of its nature, but feel sure that it is something to be dreaded. I also heard that both of these secrets had been stolen from Kondal, and that we were to be destroyed by our own superior inventions."

The Karfedix nodded his head gloomily.

"That is true, my son—partly true, at least. We shall not be destroyed, however. Kondal shall triumph. The discoveries were made by a Kondalian, but I am as ignorant as are you concerning their nature. An obscure inventor, living close to the bordering ocean, was the discoverer. He was rash enough to wireless me concerning them. He would not reveal their nature, but requested a guard. The Mardonalian patrol intercepted the message and captured both him and his discoveries before our guard could arrive."

"That's easily fixed," suggested Seaton. "Let's get the Skylark fixed up, and we'll go jerk Nalboon out of his palace—if he's still alive—bring him over here, and read his mind."

"That might prove feasible," answered the Kofedix, "and in any event we must repair the Skylark and replenish her supply of copper immediately. That must be our first consideration, so that you, our guests, will have a protection in any emergency."

The Karfedix went to his duties and the other three made their way to the wrecked space-car. They found that besides the damage done to the hull, many of the instruments were broken, including one of the object-compasses focused upon the Earth.

"It's a good thing you had three of them, Mart. I sure hand it to you for preparedness," said Seaton, as he tossed the broken instruments out upon the dock. Dunark protested at this treatment, and placed the discarded instruments in a strong metal safe, remarking:

"These things may prove useful at some future time."

"Well, I suppose the first thing to do is to get some powerful jacks and straighten these plates," said Seaton.

"Why not throw away this soft metal, steel, and build it of arenak, as it should be built? You have plenty of salt," suggested Dunark.

"Fine! We have lots of salt in the galley, haven't we, Mart?"

"Yes, nearly a hundred pounds. We are stocked for emergencies, with two years' supply of food, you know."

* * * * *

Dunark's eyes opened in astonishment at the amount mentioned, in spite of his knowledge of earthly conditions. He started to say something, then stopped in confusion, but Seaton divined his thought.

"We can spare him fifty pounds as well as not, can't we, Mart?"

"Certainly. Fifty pounds of salt is a ridiculously cheap price for what he is doing for us, even though it is very rare here."

Dunark acknowledged the gift with shining eyes and heartfelt, but not profuse, thanks, and bore the precious bag to the palace under a heavy escort. He returned with a small army of workmen, and after making tests to assure himself that the power-bar would work as well through arenak as through steel, he instructed the officers concerning the work to be done. As the wonderfully skilled mechanics set to work without a single useless motion, the prince stood silent, with a look of care upon his handsome face.

"Worrying about Mardonale, Dunark?"

"Yes. I cannot help wondering what that terrible new engine of destruction is, which Nalboon now has at his command."

"Say, why don't you build a bus like the Skylark, and blow Mardonale off the map?"

"Building the vessel would be easy enough, but X is as yet unknown upon Osnome."

"We've got a lot of it...."

"I could not accept it. The salt was different, since you have plenty. X, however, is as scarce upon Earth as salt is upon Osnome."

"Sure you can accept it. We stopped at a planet that has lots of it, and we've got an object-compass pointing at it so that we can go back and get more of it any time we want it. We've got more of it on hand now than we're apt to need for a long time, so have a hunk and get busy," and he easily carried one of the lumps out of his cabin and tossed it upon the dock, from whence it required two of Kondal's strongest men to lift it.

The look of care vanished from the face of the prince and he summoned another corps of mechanics.

"How thick shall the walls be? Our battleships are armed with arenak the thickness of a hand, but with your vast supply of salt you may have it any thickness you wish, since the materials of the matrix are cheap and abundant."

"One inch would be enough, but everything in the bus is designed for a four-foot shell, and if we change it from four feet we'll have to redesign our guns and all our instruments. Let's make it four feet."

Seaton turned to the crippled Skylark, upon which the first crew of Kondalian mechanics were working with skill and with tools undreamed-of upon Earth. The whole interior of the vessel was supported by a complex falsework of latticed metal, then the four-foot steel plates and the mighty embers, the pride of the great MacDougall, were cut away as though they were made of paper by revolving saws and enormous power shears. The sphere, grooved for the repellers and with the members, braces, and central machinery complete, of the exact dimensions of the originals, was rapidly moulded of a stiff, plastic substance resembling clay. This matrix soon hardened into a rock-like mass into which the doors, machine-gun emplacements, and other openings were carefully cut. All surfaces were then washed with a dilute solution of salt, which the workmen handled as though it were radium. Two great plates of platinum were clamped into place upon either side of the vessel, each plate connected by means of silver cables as large as a man's leg to the receiving terminal of an enormous wireless power station. The current was applied and the great spherical mass apparently disappeared, being transformed instantly into the transparent metal arenak. Then indeed had the Earth-men a vehicle such as had never been seen before! A four-foot shell of metal five hundred times as strong and hard as the strongest and hardest steel, cast in one piece with the sustaining framework designed by the world's foremost engineer—a structure that no conceivable force could deform or injure, housing an inconceivable propulsive force!

* * * * *

The falsework was rapidly removed and the sustaining framework was painted with opaque varnish to render it plainly visible. At Seaton's suggestion the walls of the cabins were also painted, leaving transparent several small areas to serve as windows.

The second work-period was drawing to a close, and as Seaton and Crane were to be married before koprat, they stopped work. They marveled at the amount that had been accomplished, and the Kofedix told them:

"Both vessels will be finished tomorrow, except for the controlling instruments, which we will have to make ourselves. Another crew will work during the sleeping-period, installing the guns and other fittings. Do you wish to have your own guns installed, or guns of our pattern? You are familiar with them now."

"Our own, please. They are slower and less efficient than yours, but we are used to them and have a lot of X-plosive ammunition for them," replied Seaton, after a short conference with Crane.

After instructing the officers in charge of the work, the three returned to the palace, the hearts of two of them beating high in anticipation. Seaton went into Crane's room, accompanied by two attendants bearing his suitcase and other luggage.

"We should have brought along dress clothes, Mart. Why didn't you think of that, too?"

"Nothing like this ever entered my mind. It is a good thing we brought along ducks and white soft shirts. I must say that this is extremely informal garb for a state wedding, but since the natives are ignorant of our customs, it will not make any difference."

"That's right, too—we'll make 'em think it's the most formal kind of dress. Dunark knows what's what, but he knows that full dress would be unbearable here. We'd melt down in a minute. It's plenty hot enough as it is, with only duck trousers and sport-shirts on. They'll look green instead of white, but that's a small matter."

Dunark, as best man, entered the room some time later.

"Give us a look, Dunark," begged Seaton, "and see if we'll pass inspection. I was never so rattled in my life."

They were clad in spotless white, from their duck oxfords to the white ties encircling the open collars of their tennis shirts. The two tall figures—Crane's slender, wiry, at perfect ease; Seaton's broad-shouldered, powerful, prowling about with unconscious, feline suppleness and grace—and the two handsome, high-bred, intellectual faces, each wearing a look of eager happiness, fully justified Dunark's answer.

"You sure will do!" he pronounced enthusiastically, and with Seaton's own impulsive good will he shook hands and wished them an eternity of happiness.

"When you have spoken with your brides," he continued, "I shall be waiting to escort you into the chapel. Sitar told me to say that the ladies are ready."

Dorothy and Margaret had been dressed in their bridal gowns by Sitar and several other princesses, under the watchful eyes of the Karfedir herself. Sitar placed the two girls side by side and drew off to survey her work.

"You are the loveliest creatures in the whole world!" she cried.

They looked at each other's glittering gowns, then Margaret glanced at Dorothy's face and a look of dismay overspread her own.

"Oh, Dottie!" she gasped. "Your lovely complexion! Isn't it terrible for the boys to see us in this light?"

There was a peal of delighted laughter from Sitar and she spoke to one of the servants, who drew dark curtains across the windows and pressed a switch, flooding the room with brilliant white light.

"Dunark installed lamps like those of your ship for you," she explained with intense satisfaction. "I knew in advance just how you would feel about your color."

Before the girls had time to thank their thoughtful hostess she disappeared and their bridegrooms stood before them. For a moment no word was spoken. Seaton stared at Dorothy hungrily, almost doubting the evidence of his senses. For white was white, pink was pink, and her hair shone in all its natural splendor of burnished bronze.

In their wondrous Osnomian bridal robes the beautiful Earth-maidens stood before their lovers. Upon their feet were jeweled slippers. Their lovely bodies were clothed in softly shimmering garments that left their rounded arms and throats bare—garments infinitely more supple than the finest silk, thick-woven of metallic threads of such fineness that the individual wires were visible only under a lens; garments that floated and clung about their perfect forms in lines of exquisite grace. For black-haired Margaret, with her ivory skin, the Kondalian princess had chosen a background of a rare white metal, upon which, in complicated figures, glistened numberless jewels of pale colors, more brilliant than diamonds. Dorothy's dress was of a peculiar, dark-green shade, half-hidden by an intricate design of blazing green gems—the strange, luminous jewels of this strange world. Both girls wore their long, heavy hair unbound, after the Kondalian bridal fashion, brushed until it fell like mist about them and confined at the temples by metallic bands entirely covered with jewels.

Seaton looked from Dorothy to Margaret and back again; looked down into her violet eyes, deep with wonder and with love, more beautiful than any jewel in all her gorgeous costume. Unheeding the presence of the others, she put her dainty hands upon his mighty shoulders and stood on tiptoe.

"I love you, Dick. Now and always, here or at home or anywhere in the Universe. We'll never be parted again," she whispered, and her own beloved violin had no sweeter tones than had her voice.

A few minutes later, her eyes wet and shining, she drew herself away from him and glanced at Margaret.

"Isn't she the most beautiful thing you ever laid eyes on?"

"No," Seaton answered promptly, "she is not—but poor old Mart thinks she is!"

* * * * *

Accompanied by the Karfedix and his son, Seaton and Crane went into the chapel, which, already brilliant, had been decorated anew with even greater splendor. Glancing through the wide arches they saw, for the first time, Osnomians clothed. The great room was filled with the highest nobility of Kondal, wearing their heavily-jeweled, resplendent robes of state. Every color of the rainbow and numberless fantastic patterns were there, embodied in the soft, lustrous, metallic fabric.

As the men entered one door Dorothy and Margaret, with the Karfedir and Sitar, entered the other, and the entire assemblage rose to its feet and snapped into the grand salute. Moving to the accompaniment of strange martial music from concealed instruments, the two parties approached each other, meeting at the raised platform or pulpit where Karbix Tarnan, a handsome, stately, middle-aged man who carried easily his hundred and fifty karkamo of age, awaited them. As he raised his arms, the music ceased.

It was a solemn and wonderfully impressive spectacle. The room, of burnished metal, with its bizarre decorations wrought in scintillating gems; the constantly changing harmony of colors as the invisible lamps were shifted from one shade to another; the group of mighty nobles standing rigidly at attention in a silence so profound that it was an utter absence of everything audible as the Karbix lifted both arms in a silent invocation of the great First Cause—all these things deepened the solemnity of that solemn moment.

When Tarnan spoke, his voice, deep with some great feeling, inexplicable even to those who knew him best, carried clearly to every part of the great chamber.

"Friends, it is our privilege to assist today in a most notable event, the marriage of four personages from another world. For the first time in the history of Osnome, one karfedix has the privilege of entertaining the bridal party of another. It is not for this fact alone, however, that this occasion is to be memorable. A far deeper reason is that we are witnessing, possibly for the first time in the history of the Universe, the meeting upon terms of mutual fellowship and understanding of the inhabitants of two worlds separated by unthinkable distances of trackless space and by equally great differences in evolution, conditions of life, and environment. Yet these strangers are actuated by the spirit of good faith and honor which is instilled into every worthy being by the great First Cause, in the working out of whose vast projects all things are humble instruments.

"In honor of the friendship of the two worlds, we will proceed with the ceremony.

"Richard Seaton and Martin Crane, exchange the plain rings with Dorothy Vaneman and Margaret Spencer."

They did so, and repeated, after the Karbix, simple vows of love and loyalty.

"May the First Cause smile upon this temporary marriage and render it worthy of being made permanent. As a lowly servant of the all-powerful First Cause I pronounce you two, and you two, husband and wife. But we must remember that the dull vision of mortal man cannot pierce the veil of futurity, which is as crystal to the all-beholding eye of the First Cause. Though you love each other truly, unforeseen things may come between you to mar the perfection of your happiness. Therefore a time is granted you during which you may discover whether or not your unions are perfect."

A pause ensued, then Tarnan went on:

"Martin Crane, Margaret Spencer, Richard Seaton, and Dorothy Vaneman, you are before us to take the final vows which shall bind your bodies together for life and your spirits together for eternity. Have you considered the gravity of this step sufficiently to enter into this marriage without reservation?"

"I have," solemnly replied the four, in unison.

"Exchange the jeweled rings. Do you, Richard Seaton and Dorothy Vaneman; and you, Martin Crane and Margaret Spencer; individually swear, here in the presence of the First Cause and that of the Supreme Justices of Kondal, that you will be true and loyal, each helping his chosen one in all things, great and small; that never throughout eternity, in thought or in action, will either your body or your mind or your conscious spirit stray from the path of fairness and truth and honor?"

"I do."

"I pronounce you married with the eternal marriage. Just as the faidon which you each now wear—the eternal jewel which no force of man, however applied, has yet been able to change or deform in any particular; and which continues to give off its inward light without change throughout eternity—shall endure through endless cycles of time after the metal of the ring which holds it shall have crumbled in decay: even so shall your spirits, formerly two, now one and indissoluble, progress in ever-ascending evolution throughout eternity after the base material which is your bodies shall have returned to the senseless dust from whence it arose."

* * * * *

The Karbix lowered his arms and the bridal party walked to the door through a double rank of uplifted weapons. From the chapel they were led to another room, where the contracting parties signed their names in a register. The Kofedix then brought forward two marriage certificates—heavy square plates of a brilliant purple metal, beautifully engraved in parallel columns of English and Kondalian script, and heavily bordered with precious stones. The principals and witnesses signed below each column, the signatures being deeply engraved by the royal engraver. Leaving the registry, they were escorted to the dining hall, where a truly royal repast was served. Between courses the highest nobles of the nation welcomed the visitors and wished them happiness in short but earnest addresses. After the last course had been disposed of, the Karbix rose at a sign from the Karfedix and spoke, his voice again agitated by the emotion which had puzzled his hearers during the marriage service.

"All Kondal is with us here in spirit, trying to aid us in our poor attempts to convey our welcome to these our guests, of whose friendship no greater warrant could be given than their willingness to grant us the privilege of their marriage. Not only have they given us a boon that will make their names revered throughout the nation as long as Kondal shall exist, but they have also been the means of showing us plainly that the First Cause is upon our side, that our age-old institution of honor is in truth the only foundation upon which can be built a race fitted to survive. At the same time they have been the means of showing us that our hated foe, entirely without honor, building his race upon a foundation of bloodthirsty savagery alone, is building wrongly and must perish utterly from the face of Osnome."

His hearers listened, impressed by his earnestness, but plainly not understanding his meaning.

"You do not understand?" he went on, with a deep light shining in his eyes. "It is inevitable that two peoples inhabiting worlds so widely separated as are our two should be possessed of widely-varying knowledge and abilities, and these strangers have already made it possible for us to construct engines of destruction which shall obliterate Mardonale completely...." A fierce shout of joy interrupted the speaker and the nobles sprang to their feet, saluting the visitors with upraised weapons. As soon as they had reseated themselves, the Karbix continued:

"That is the boon. The vindication of our system of evolution is easily explained. The strangers landed first upon Mardonale. Had Nalboon met them in honor, he would have gained the boon. But he, with the savagery characteristic of his evolution, attempted to kill his guests and steal their treasures, with what results you already know. We, on our part, in exchange for the few and trifling services we have been able to render them, have received even more than Nalboon would have obtained, had his plans not been nullified by their vastly superior state of evolution."

The orator seated himself and there was a deafening clamor of cheering as the nobles formed themselves into an escort of honor and conducted the two couples to their apartments.

Alone in their room, Dorothy turned to her husband with tears shining in her beautiful eyes.

"Dick, sweetheart, wasn't that the most wonderful thing that anybody ever heard of? Using the word in all its real meaning, it was indescribably grand, and that old man is simply superb. It makes me ashamed of myself to think that I was ever afraid or nervous here."

"It sure was all of that, Dottie mine, little bride of an hour. The whole thing gets right down to where a fellow lives—I've got a lump in my throat right now so big that it hurts me to think. Earthly marriages are piffling in comparison with that ceremony. It's no wonder they're happy, after taking those vows—especially as they don't have to take them until after they are sure of themselves.

"But we're sure already, sweetheart," as he embraced her with all the feeling of his nature. "Those vows are not a bit stronger than the ones we have already exchanged—bodily and mentally and spiritually we are one, now and forever."



CHAPTER XVII

Bird, Beast, or Fish?

"These jewels rather puzzle me, Dick. What are they?" asked Martin, as the four assembled, waiting for the first meal. As he spoke he held up his third finger, upon which gleamed the royal jewel of Osnome in its splendid Belcher mounting of arenak as transparent as the jewel itself and having the same intense blue color. "I know the name, 'faidon,' but that's all I seem to know."

"That's about all that anybody knows about them. It is a naturally-occurring, hundred-faceted crystal, just as you see it there—deep blue, perfectly transparent, intensely refractive, and constantly emitting that strong, blue light. It is so hard that it cannot be worked, cut, or ground. No amount of the hardest known abrasive will even roughen its surface. No blow, however great, will break it—it merely forces its way into the material of the hammer, however hard the hammer may be. No extremity of either heat or cold affects it in any degree, it is the same when in the most powerful electric arc as it is when immersed in liquid helium."

"How about acids?"

"That is what I am asking myself. Osnomians aren't much force at chemistry. I'm going to try to get hold of another one, and see if I can't analyze it, just for fun. I can't seem to convince myself that a real atomic structure could be that large."

"No, it is rather large for an atom," and turning to the two girls, "How do you like your solitaires?"

"They're perfectly beautiful, and the Tiffany mounting is exquisite," replied Dorothy, enthusiastically, "but they're so awfully big! They're as big as ten-carat diamonds, I do believe."

"Just about," replied Seaton, "but at that, they're the smallest Dunark could find. They have been kicking around for years, he says—so small that nobody wanted them. They wear big ones on their bracelets, you know. You sure will make a hit in Washington, Dottie. People will think you're wearing a bottle-stopper until they see it shining in the dark, then they'll think it's an automobile headlight. But after a few jewelers have seen these stones, one of them will be offering us five million dollars apiece for them, trying to buy them for some dizzy old dame who wants to put out the eyes of some of her social rivals. Yes? No?"

"That's about right, Dick," replied Crane, and his face wore a thoughtful look. "We can't keep it secret that we have a new jewel, since all four of us will be wearing them continuously, and anyone who knows jewels at all will recognize these as infinitely superior to any known Earthly jewel. In fact, they may get some of us into trouble, as fabulously valuable jewels usually do."

"That's true, too. So we'll let it out casually that they're as common as mud up here—that we're just wearing them for sentiment, which is true, and that we're thinking of bringing back a shipload to sell for parking lights."

"That would probably keep anyone from trying to murder our wives for their rings, at least."

"Have you read your marriage certificate, Dick?" asked Margaret.

"Not yet. Let's look at it, Dottie."

She produced the massive, heavily-jeweled document, and the auburn head and the brown one were very close to each other as they read together the English side of the certificate. Their vows were there, word for word, with their own signatures beneath them, all deeply engraved into the metal. Seaton smiled as he saw the legal form engraved below their signatures, and read aloud:

"I, the Head of the Church and the Commander-in-Chief of the armed forces of Kondal, upon the planet Osnome, certify that I have this day, in the city of Kondalek, of said nation and planet, joined in indissoluble bonds of matrimony, Richard Ballinger Seaton, Doctor of Philosophy, and Dorothy Lee Vaneman; Doctor of Music; both of the city of Washington, District of Columbia, United States of America, upon the planet Earth, in strict compliance with the marriage laws, both of Kondal and of the United States of America.

TARNAN."

Witnesses: ROBAN, Emperor of Kondal. TURAL, Empress of Kondal. DUNARK, Crown Prince of Kondal. SITAR, Crown Princess of Kondal. MARC C. DUQUESNE, Ph. D., Washington, D. C.

"That is SOME document," remarked Seaton. "Probably a lawyer could find fault with his phraseology, but I'll bet that this thing would hold in any court in the world. Think you'll get married again when we get back, Mart?"

Both girls protested, and Crane answered:

"No, I think not. Our ceremony would be rather an anticlimax after this one, and this one will undoubtedly prove legal. I intend to register this just as it is, and get a ruling from the courts. But it is time for breakfast. Pardon me—I should have said 'darprat,' for it certainly is not breakfast-time by Washington clocks. My watch says that it is eleven-thirty P. M."

"This system of time is funny," remarked Dorothy. "I just can't get used to having no night, and...."

"And it's such a long time between eats, as the famous governor said about the drinks," broke in Seaton.

"How did you know what I was going to say, Dick?"

"Husbandly intuition," he grinned, "aided and abetted by a normal appetite that rebels at seventeen hours between supper and breakfast, and nine hours between the other meals. Well, it's time to eat—let's go!"

* * * * *

After eating, the men hurried to the Skylark. During the sleeping-period the vessel had been banded with the copper repellers: the machine guns and instruments, including the wonderful Osnomian wireless system, had been installed; and, except for the power-bars, she was ready for a voyage. The Kondalian vessel was complete, even to the cushions, but was without instruments.

After a brief conversation with the officer in charge, Dunark turned to Seaton.

"Didn't you find that your springs couldn't stand up under the acceleration?"

"Yes, they flattened out dead."

"The Kolanix Felan, in charge of the work, thought so, and substituted our compound-compensated type, made of real spring metal, for them. They'll hold you through any acceleration you can live through."

"Thanks, that's fine. What's next, instruments?"

"Yes. I have sent a crew of men to gather up what copper they can find—you know that we use practically no metallic copper, as platinum, gold, and silver are so much better for ordinary purposes—and another to erect a copper-smelter near one of the mines which supply the city with the copper sulphate used upon our tables. While they are at work I think I will work on the instruments, if you two will be kind enough to help me."

Seaton and Crane offered to supply him with instruments from their reserve stock, but the Kofedix refused to accept them, saying that he would rather have their help in making them, so that he would thoroughly understand their functions. The electric furnaces were rapidly made ready and they set to work; Crane taking great delight in working that hitherto rare and very refractory metal, iridium, of which all the Kondalian instruments were to be made.

"They have a lot of our rare metals here, Dick."

"They sure have. I'd like to set up a laboratory and live here a few years—I'd learn something about my specialty or burst. They use gold and silver where we use copper, and platinum and its alloys where we use iron and soft steel. All their weapons are made of iridium, and all their most highly-tempered tools, such as their knives, razors, and so on, are made of opaque arenak. I suppose you've noticed the edge on your razor?"

"How could I help it? It is hard to realize that a metal can be so hard that it requires forty years on a diamond-dust abrasive machine to hone a razor—or that once honed, it shaves generation after generation of men without losing in any degree its keenness."

"I can't understand it, either—I only know that it's so. They have all our heavy metals in great abundance, and a lot more that we don't know anything about on Earth, but they apparently haven't any light metals at all. It must be that Osnome was thrown off the parent sun late, so that the light metals were all gone?"

"Something like that, possibly."

The extraordinary skill of the Kofedix made the manufacture of the instruments a short task, and after Crane had replaced the few broken instruments of the Skylark from their reserve stock, they turned their attention to the supply of copper that had been gathered. They found it enough for only two bars.

"Is this all we have?" asked Dunark, sharply.

"It is, your Highness," replied the Kolanix. "That is every scrap of metallic copper in the city."

"Oh, well, that'll be enough to last until we can smelt the rest," said Seaton. "With one bar apiece we're ready for anything Mardonale can start. Let 'em come!"

The bars were placed in the containers and both vessels were tried out, each making a perfect performance. Upon the following kokam, immediately after the first meal, the full party from the Earth boarded the Skylark and accompanied the Kofedix to the copper smelter. Dunark himself directed the work of preparing the charges and the molds, though he was continually being interrupted by wireless messages in code and by messengers bearing tidings too important to trust into the air.

"I hope you will excuse all of these delays," said Dunark, after the twentieth interruption, "but...."

"That's all right, Dunark. We know that you're a busy man."

"I can tell you about it, but I wouldn't want to tell many people. With the salt you gave us, I am preparing a power-plant that will enable us to blow Mardonale into...."

He broke off as a wireless call for help sounded. All listened intently, learning that a freight-plane was being pursued by a karlon a few hundred miles away.

"Now's the time for you to study one, Dunark!" Seaton exclaimed. "Get your gang of scientists out here while we go get him and drag him in!"

* * * * *

As Dunark sent the message, the Skylark's people hurried aboard, and Seaton drove the vessel toward the calls for help. With its great speed it reached the monster before the plane was overtaken. Focusing the attractor upon the enormous metallic beak of the karlon, Seaton threw on the power and the beast halted in midair as it was jerked backward and upward. As it saw the puny size of the attacking Skylark, it opened its cavernous mouth in a horrible roar and rushed at full speed. Seaton, unwilling to have the repellers stripped from the vessel, turned on the current actuating them. The karlon was hurled backward to the point of equilibrium of the two forces, where it struggled demoniacally.

Seaton carried his captive back to the smelter, where finally, by judicious pushing and pulling, he succeeded in turning the monster flat upon its back and pinning it to the ground in spite of its struggles to escape.

Soon the scientists arrived and studied the animal thoroughly, at as close a range as its flailing arms permitted.

"I wish we could kill him without blowing him to bits," wirelessed Dunark. "Do you know any way of doing it?"

"We could if we had a few barrels of ether, or some of our own poison gases, but they are all unknown here and it would take a long time to build the apparatus to make them. I'll see if I can't tire him out and get him that way as soon as you've studied him enough. We may be able to find out where he lives, too."

The scientists having finished their observations, Seaton jerked the animal a few miles into the air and shut off the forces acting upon it. There was a sudden crash, and the karlon, knowing that this apparently insignificant vessel was its master, turned in headlong flight.

"Have you any idea what caused the noise just then, Dick?" asked Crane; who, with characteristic imperturbability, had taken out his notebook and was making exact notes of all that transpired.

"I imagine we cracked a few of his plates," replied Seaton with a laugh, as he held the Skylark in place a few hundred feet above the fleeing animal.

Pitted for the first time in its life against an antagonist, who could both outfly and outfight it, the karlon redoubled its efforts and fled in a panic of fear. It flew back over the city of Kondalek, over the outlying country, and out over the ocean, still followed easily by the Skylark. As they neared the Mardonalian border, a fleet of warships rose to contest the entry of the monster. Seaton, not wishing to let the foe see the rejuvenated Skylark, jerked his captive high into the thin air. As soon as it was released, it headed for the ocean in an almost perpendicular dive, while Seaton focused an object-compass upon it.

"Go to it, old top," he addressed the plunging monster. "We'll follow you clear to the bottom of the ocean if you go that far!"

There was a mighty double splash as the karlon struck the water, closely followed by the Skylark. The girls gasped as the vessel plunged below the surface at such terrific speed, and seemed surprised that it had suffered no injury and that they had felt no jar. Seaton turned on the powerful searchlights and kept close enough so that he could see the monster through the transparent walls. Deeper and deeper the quarry dove, until it was plainly evident to the pursuers that it was just as much at home in the water as it was in the air. The beams of the lights revealed strange forms of life, among which were huge, staring-eyed fishes, which floundered about blindly in the unaccustomed glare. As the karlon bored still deeper, the living things became scarcer, but still occasional fleeting glimpses were obtained of the living nightmares which inhabited the oppressive depths of these strange seas. Continuing downward, the karlon plumbed the nethermost pit of the ocean and came to rest upon the bottom, stirring up a murk of ooze.

"How deep are we, Mart?"

"About four miles. I have read the pressure, but will have to calculate later exactly what depth it represents, from the gravity and density readings."

As the animal showed no sign of leaving its retreat, Seaton pulled it out with the attractor and it broke for the surface. Rising through the water at full speed, it burst into the air and soared upward to such an incredible height that Seaton was amazed.

"I wouldn't have believed that anything could fly in air this thin!" he exclaimed.

"It is thin up here," assented Crane. "Less than three pounds to the square inch. I wonder how he does it?"

"It doesn't look as though we are ever going to find out—he's sure a bear-cat!" replied Seaton, as the karlon, unable to ascend further, dropped in a slanting dive toward the lowlands of Kondal—the terrible, swampy region covered with poisonous vegetation and inhabited by frightful animals and even more frightful savages. The monster neared the ground with ever-increasing speed. Seaton, keeping close behind it, remarked to Crane:

"He'll have to flatten out pretty quick, or he'll burst something, sure."

* * * * *

But it did not flatten out. It struck the soft ground head foremost and disappeared, its tentacles apparently boring a way ahead of it.

Astonished at such an unlooked-for development, Seaton brought the Skylark to a stop and stabbed into the ground with the attractor. The first attempt brought up nothing but a pillar of muck, the second brought to light a couple of wings and one writhing arm, the third brought the whole animal, still struggling as strongly as it had in the first contest. Seaton again lifted the animal high into the air.

"If he does that again, we'll follow him."

"Will the ship stand it?" asked DuQuesne, with interest.

"Yes. The old bus wouldn't have, but this one can stand anything. We can go anywhere that thing can, that's a cinch. If we have enough power on, we probably won't even feel a jolt when we strike ground."

Seaton reduced the force acting upon the animal until just enough was left to keep the attractor upon it, and it again dived into the swamp. The Skylark followed, feeling its way in the total darkness, until the animal stopped, refusing to move in any direction, at a depth estimated by Crane to be about three-quarters of a mile. After waiting some time Seaton increased the power of the attractor and tore the karlon back to the surface and into the air, where it turned on the Skylark with redoubled fury.

"We've dug him out of his last refuge and he's fighting like a cornered rat," said Seaton as he repelled the monster to a safe distance. "He's apparently as fresh as when he started, in spite of all this playing. Talk about a game fish! He doesn't intend to run any more, though, so I guess we'll have to put him away. It's a shame to bump him off, but it's got to be done."

Crane aimed one of the heavy X-plosive bullets at the savagely-struggling monster, and the earth rocked with the concussion as the shell struck its mark. They hurried back to the smelter, where Dunark asked eagerly:

"What did you find out about it?"

"Nothing much," replied Seaton, and in a few words described the actions of the karlon. "What did your savants think of it?"

"Very little that any of us can understand in terms of any other known organism. It seems to combine all the characteristics of bird, beast, and fish, and to have within itself the possibilities of both bisexual and asexual reproduction."

"I wouldn't doubt it—it's a queer one, all right."

The copper bars were cool enough to handle, and the Skylark was loaded with five times its original supply of copper, the other vessel taking on a much smaller amount. After the Kofedix had directed the officer in charge to place the remaining bars in easily-accessible places throughout the nation, the two vessels were piloted back to the palace, arriving just in time for the last meal of the kokam.

"Well, Dunark," said Seaton after the meal was over, "I'm afraid that we must go back as soon as we can. Dorothy's parents and Martin's bankers will think they are dead by this time. We should start right now, but...."

"Oh, no, you must not do that. That would rob our people of the chance of bidding you goodbye."

"There's another reason, too. I have a mighty big favor to ask of you."

"It is granted. If man can do it, consider it done."

"Well, you know platinum is a very scarce and highly useful metal with us. I wonder if you could let us have a few tons of it? And I would like to have another faidon, too—I want to see if I can't analyze it."

"You have given us a thousand times the value of all the platinum and all the jewels your vessel can carry. As soon as the foundries are open tomorrow we will go and load up your store-rooms—or, if you wish, we will do it now."

"That isn't necessary. We may as well enjoy your hospitality for one more sleeping-period, get the platinum during the first work-period, and bid you goodbye just before the second meal. How would that be?"

"Perfectly satisfactory."

The following kokam, Dunark piloted the Skylark, with Seaton, Crane, and DuQuesne as crew, to one of the great platinum foundries. The girls remained behind to get ready for their departure, and for the great ceremony which was to precede it. The trip to the foundry was a short one, and the three scientists of Earth stared at what they saw—thousands of tons of platinum, cast into bars and piled up like pig-iron, waiting to be made into numerous articles of every-day use throughout the nation. Dunark wrote out an order, which his chief attendant handed to the officer in charge of the foundry, saying:

"Please have it loaded at once."

Seaton indicated the storage compartment into which the metal was to be carried, and a procession of slaves, two men staggering under one ingot, was soon formed between the pile and the storage room.

* * * * *

"How much are you loading on, Dunark?" asked Seaton, when the large compartment was more than half full.

"My order called for about twenty tons, in your weight, but I changed it later—we may as well fill that room full, so that the metal will not rattle around in flight. It doesn't make any difference to us, we have so much of it. It is like your gift of the salt, only vastly smaller."

"What are you going to do with it all, Dick?" asked Crane. "That is enough to break the platinum market completely."

"That's exactly what I'm going to do," returned Seaton, with a gleam in his gray eyes. "I'm going to burst this unjustifiable fad for platinum jewelry so wide open that it'll never recover, and make platinum again available for its proper uses, in laboratories and in the industries.

"You know yourself," he rushed on hotly, "that the only reason platinum is used at all for jewelry is that it is expensive. It isn't nearly so handsome as either gold or silver, and if it wasn't the most costly common metal we have, the jewelry-wearing crowd wouldn't touch it with a ten-foot pole. Useless as an ornament, it is the one absolutely indispensable laboratory metal, and literally hundreds of laboratories that need it can't have it because over half the world's supply is tied up in jeweler's windows and in useless baubles. Then, too, it is the best thing known for contact points in electrical machinery. When the Government and all the scientific societies were abjectly begging the jewelers to let loose a little of it they refused—they were selling it to profiteering spendthrifts at a hundred and fifty dollars an ounce. The condition isn't much better right now; it's a vicious circle. As long as the price stays high it will be used for jewelry, and as long as it is used for jewelry the price will stay high, and scientists will have to fight the jewelers for what little they get."

"While somewhat exaggerated, that is about the way matters stand. I will admit that I, too, am rather bitter on the subject," said Crane.

"Bitter? Of course you're bitter. Everybody is who knows anything about science and who has a brain in his head. Anybody who claims to be a scientist and yet stands for any of his folks buying platinum jewelry ought to be shot. But they'll get theirs as soon as we get back. They wouldn't let go of it before, they had too good a thing, but they'll let go now, and get their fingers burned besides. I'm going to dump this whole shipment at fifty cents a pound, and we'll take mighty good care that jewelers don't corner the supply."

"I'm with you, Dick, as usual."

Soon the storage room was filled to the ceiling with closely-stacked ingots of the precious metal, and the Skylark was driven back to the landing dock. She alighted beside Dunark's vessel, the Kondal, whose gorgeously-decorated crew of high officers sprang to attention as the four men stepped out. All were dressed for the ceremonial leave-taking, the three Americans wearing their spotless white, the Kondalians wearing their most resplendent trappings.

"This formal stuff sure does pull my cork!" exclaimed Seaton to Dunark. "I want to get this straight. The arrangement was that we were to be here at this time, all dressed up, and wait for the ladies, who are coming under the escort of your people?"

"Yes. Our family is to escort the ladies from the palace here. As they leave the elevator the surrounding war-vessels will salute, and after a brief ceremony you two will escort your wives into the Skylark, Doctor DuQuesne standing a little apart and following you in. The war-vessels will escort you as high as they can go, and the Kondal will accompany you as far as our most distant sun before turning back."

For a few moments Seaton nervously paced a short beat in front of the door of the space-car.

"I'm getting more fussed every second," he said abruptly, taking out his wireless instrument. "I'm going to see if they aren't about ready."

"What seems to be the trouble, Dick? Have you another hunch, or are you just rattled?" asked Crane.

"Rattled, I guess, but I sure do want to get going," he replied, as he worked the lever rapidly.

"Dottie," he sent out, and, the call being answered, "How long will you be? We're all ready and waiting, chewing our finger-nails with impatience."

"We'll soon be ready. The Karfedix is coming for us now."

Scarcely had the tiny sounder become silent when the air was shaken by an urgently-vibrated message, and every wireless sounder gave warning.



CHAPTER XVIII

The Invasion

The pulsating air and the chattering sounders were giving the same dire warning, the alarm extraordinary of invasion, of imminent and catastrophic danger from the air.

"Don't try to reach the palace. Everyone on the ground will have time enough to hide in the deep, arenak-protected pits beneath the buildings, and you would be killed by the invaders long before you could reach the palace. If we can repel the enemy and keep them from landing, the women will be perfectly safe, even though the whole city is destroyed. If they effect a landing we are lost."

"They'll not land, then," Seaton answered grimly, as he sprang into the Skylark and took his place at the board. As Crane took out his wireless, Seaton cautioned him.

"Send in English, and tell the girls not to answer, as these devils can locate the calls within a foot and will be able to attack the right spot. Just tell them we're safe in the Skylark. Tell them to sit tight while we wipe out this gang that is coming, and that we'll call them, once in a while, when we have time, during the battle."

Before Crane had finished sending the message the crescendo whine of enormous propellers was heard. Simultaneously there was a deafening concussion and one entire wing of the palace disappeared in a cloud of dust, in the midst of which could be discerned a few flying fragments. The air was filled with Mardonalian warships. They were huge vessels, each mounting hundreds of guns, and the rain of high-explosive shells was rapidly reducing the great city to a wide-spread heap of debris.

Seaton's hand was upon the lever which would hurl the Skylark upward into the fray. Crane and DuQuesne, each hard of eye and grim of jaw, were stationed at their machine-guns.

"Something's up!" exclaimed Seaton. "Look at the Kondal!"

Something had happened indeed. Dunark sat at the board, his hand upon the power lever, and each of his crew was in place, grasping his weapon, but every man was writhing in agony, unable to control his movements. As they stared, momentarily spellbound, the entire crew ceased their agonized struggles and hung, apparently lifeless, from their supports.

"They've got to 'em some way—let's go!" yelled Seaton.

As his hand tightened upon the lever, a succession of shells burst upon the dock, wrecking it completely, all three men fancied that the world had come to an end as the stream of high explosive was directed against their vessel. But the four-foot shell of arenak was impregnable, and Seaton shot the Skylark upward into the midst of the enemy fleet. The two gunners fired as fast as they could sight their weapons, and with each shot one of the great warships was blown into fragments. The Mardonalians then concentrated the fire of their entire fleet upon their tiny opponent.

From every point of the compass, from above and below, the enemy gunners directed streams of shells against the dodging vessel. The noise was more than deafening, it was one continuous, shattering explosion, and the Earth-men were surrounded by such a blaze of fire from the exploding shells that they could not see the enemy vessels. Seaton sought to dodge the shells by a long dive toward one side, only to find that dozens of new opponents had been launched against them—the deadly airplane-torpedoes of Osnome. Steered by wireless and carrying no crews, they were simply winged bombs carrying thousands of pounds of terrific electrical explosive—enough to kill the men inside the vessel by the concussion of the explosion, even should the arenak armor be strong enough to withstand the blow. Though much faster than the Osnomian vessels, they were slow beside the Skylark, and Seaton could have dodged a few of them with ease. As he dodged, however, they followed relentlessly, and in spite of those which were blown up by the gunners, their number constantly increased until Seaton thought of the repellers.

"'Nobody Holme' is right!" he exclaimed, as he threw on the power actuating the copper bands which encircled the hull in all directions. Instantly the torpedoes were hurled backward, exploding as the force struck them, and even the shells were ineffective, exploding harmlessly, as they encountered the zone of force. The noise of the awful detonations lessened markedly.

"Why the silence, I wonder?" asked Seaton, while the futile shells of the enemy continued to waste their force some hundreds of feet distant from their goal, and while Crane and DuQuesne were methodically destroying the huge vessels as fast as they could aim and fire. At every report one of the monster warships disappeared—its shattered fragments and the bodies of its crew hurtling to the ground. His voice could not be heard in even the lessened tumult, but he continued:

"It must be that our repellers have set up a partial vacuum by repelling even the air!"

* * * * *

Suddenly the shelling ceased and the Skylark was enveloped by a blinding glare from hundreds of great reflectors; an intense, searching, bluish-violet light that burned the flesh and seared through eyelids and eyeballs into the very brain.

"Ultra-violet!" yelled Seaton at the first glimpse of the light, as he threw on the power. "Shut your eyes! Turn your heads down!"

Out in space, far beyond reach of the deadly rays, the men held a short conference, then donned heavy leather-and-canvas suits, which they smeared liberally with thick red paint, and replaced the plain glasses of their helmets with heavy lenses of deep ruby glass.

"This'll stop any ultra-violet ray ever produced," exulted Seaton, as he again threw the vessel into the Mardonalian fleet. A score of the great vessels met their fate before the Skylark was located, and, although the terrible rays were again focused upon the intruder in all their intensity, the carnage continued.

In a few minutes, however, the men heard, or rather felt, a low, intense vibration, like a silent wave of sound—a vibration which smote upon the eardrums as no possible sound could smite, a vibration which racked the joints and tortured the nerves as though the whole body were disintegrating. So sudden and terrible was the effect that Seaton uttered an involuntary yelp of surprise and pain as he once more fled into the safety of space.

"What the devil was that?" demanded DuQuesne. "Was it infra-sound? I didn't suppose such waves could be produced."

"Infra-sound is right. They produce most anything here," replied Seaton, and Crane added:

"Well, about three fur suits apiece, with cotton in our ears, ought to kill any wave propagated through air."

The fur suits were donned forthwith, Seaton whispering in Crane's ear:

"I've found out something else, too. The repellers repel even the air. I'm going to shoot enough juice through them to set up a perfect vacuum outside. That'll kill those air-waves."

Scarcely were they back within range of the fleet when DuQuesne, reaching for his gun to fire the first shot, leaped backward with a yell.

"Beat it!"

Once more at a safe distance, DuQuesne explained.

"It's lucky I'm so used to handling hot stuff that from force of habit I never make close contact with anything at the first touch. That gun carried thousands of volts, with lots of amperage behind them, and if I had had a good hold on it I couldn't have let go. We'll block that game quick enough, though. Thick, dry gloves covered with rubber are all that is necessary. It's a good thing for all of us that you have those fancy condensite handles on your levers, Seaton."

"That was how they got Dunark, undoubtedly," said Crane, as he sent a brief message to the girls, assuring them that all was well, as he had been doing at every respite. "But why were we not overcome at the same time?"

"They must have had the current tuned to iridium, and had to experiment until they found the right wave for steel," Seaton explained.

"I should think our bar would have exploded, with all that current. They must have hit the copper range, too?"

Seaton frowned in thought before he answered.

"Maybe because it's induced current, and not a steady battery impulse. Anyway, it didn't. Let's go!"

"Just a minute," put in Crane. "What are they going to do next, Dick?"

"Search me. I'm not used to my new Osnomian mind yet. I recognize things all right after they happen, but I can't seem to figure ahead—it's like a dimly-remembered something that flashes up as soon as mentioned. I get too many and too new ideas at once. I know, though, that the Osnomians have defenses against all these things except this last stunt of the charged guns. That must be the new one that Mardonale stole from Kondal. The defenses are, however, purely Osnomian in character and material. As we haven't got the stuff to set them up as the Osnomians do, we'll have to do it our own way. We may be able to dope out the next one, though. Let's see, what have they given us so far?"

"We've got to hand it to them," responded DuQuesne, admiringly. "They're giving us the whole range of wave-lengths, one at a time. They've given us light, both ultra-violet and visible, sound, infra-sound, and electricity—I don't know what's left unless they give us a new kind of X-rays, or Hertzian, or infra-red heat waves, or...."

"That's it, heat!" exclaimed Seaton. "They produce heat by means of powerful wave-generators and by setting up heavy induced currents in the armor. They can melt arenak that way."

"Do you suppose we can handle the heat with our refrigerators?" asked Crane.

"Probably. We have a lot of power, and the new arenak cylinders of our compressors will stand anything. The only trouble will be in cooling the condensers. We'll run as long as we have any water in our tanks, then go dive into the ocean to cool off. We'll try it a whirl, anyway."

* * * * *

Soon the Skylark was again dealing out death and destruction in the thick of the enemy vessels, who again turned from the devastation of the helpless city to destroy this troublesome antagonist. But in spite of the utmost efforts of light-waves, sound-waves, and high-tension electricity, the space-car continued to take its terrible toll. As Seaton had foretold, the armor of the Skylark began to grow hot, and he turned on the full power of the refrigerating system. In spite of the cooling apparatus, however, the outer walls finally began to glow redly, and, although the interior was comfortably cool, the ends of the rifle-barrels, which were set flush with the surface of the revolving arenak globes which held them, softened, rendering the guns useless. The copper repellers melted and dripped off in flaming balls of molten metal, so that shells once more began to crash against the armor. DuQuesne, with no thought of quitting apparent in voice or manner, said calmly: