"Can't get at this sand unless we go back and try over, and we ditch the car if we try to back up that."

The ditch was a huge natural sump-hole, the stagnant surface of which was a-crawl with slime twenty feet beneath.

Davies and Wemple sprang to take the boy's place.

"You can't do it," he urged. "You can get the back wheels past, but right there you hit that little curve, and if you make it your front wheel will be off the bank. If you don't make it, your back wheel'll be off."

Both men studied it carefully, then looked at each other.

"We've got to," said Davies.

"And we're going to," Wemple said, shoving his rival aside in comradely fashion and taking the post of danger at the wheel. "You're just as good as I at the wheel, Davies," he explained. "But you're a better shot. Your job's cut out to go back and hold off any Greasers that show up."

Davies took a rifle and strolled back with so ominous an air that the lone cavalryman put spurs to his horse and fled. Mrs. Morgan was helped out and sent plodding and tottering unaided on her way to the end of the sand stretch. Miss Drexel and Juanita joined Charley in spreading the coats and robes on the sand and in gathering and spreading small branches, brush, and armfuls of a dry, brittle shrub. But all three ceased from their exertions to watch Wemple as he shot the car backward down the V and up. The car seemed first to stand on one end, then on the other, and to reel drunkenly and to threaten to turn over into the sump-hole when its right front wheel fell into the air where the road had ceased to be. But the hind wheels bit and climbed the grade and out.

Without pause, gathering speed down the perilous slope, Wemple came ahead and up, gaining fifty feet of sand over the previous failure. More of the alluvial soil of the road had dropped out at the bad place; but he took the V in reverse, overhung the front wheel as before, and from the top came ahead again. Four times he did this, gaining each time, but each time knocking a bigger hole where the road fell out, until Miss Drexel begged him not to try again.

He pointed to a squad of horsemen coming at a gallop along the road a mile in the rear, and took the V once again in reverse.

"If only we had more stuff," Drexel groaned to his sister, as he threw down a meager, hard-gathered armful of the dry and brittle shrub, and as Wemple once more, with rush and roar, shot down the V.

For an instant it seemed that the great car would turn over into the sump, but the next instant it was past. It struck the bottom of the hollow a mighty wallop, and bounced and upended to the steep pitch of the climb. Miss Drexel, seized by inspiration or desperation, with a quick movement stripped off her short, corduroy tramping-skirt, and, looking very lithe and boyish in slender-cut pongee bloomers, ran along the sand and dropped the skirt for a foothold for the slowly revolving wheels. Almost, but not quite, did the car stop, then, gathering way, with the others running alongside and shoving, it emerged on the hard road.

While they tossed the robes and coats and Miss Drexel's skirt into the bottom of the car and got Mrs. Morgan on board, Davies overtook them.

"Down on the bottom!—all of you!" he shouted, as he gained the running board and the machine sprang away. A scattering of shots came from the rear.

"Whose business is to live!—hunch down!" Davies yelled in Wemple's ear, accompanying the instruction with an open-handed blow on the shoulder.

"Live yourself," Wemple grumbled as he obediently hunched. "Get your head down. You're exposing yourself."

The pursuit lasted but a little while, and died away in an occasional distant shot.

"They've quit," Davies announced. "It never entered their stupid heads that they could have caught us on Aliso Hill."

* * * * *

"It can't be done," was Charley Drexel's quick judgment of youth, as the machine stopped and they surveyed the acute-angled turn on the stiff up-grade of Aliso. Beneath was the swift-running river.

"Get out everybody!" Wemple commanded. "Up-side, all of you, if you don't want the car to turn over on you. Spread traction wherever she needs it."

"Shoot her ahead, or back—she can't stop," Davies said quietly, from the outer edge of the road, where he had taken position. "The earth's crumbling away from under the tires every second she stands still."

"Get out from under, or she'll be on top of you," Wemple ordered, as he went ahead several yards.

But again, after the car rested a minute, the light, dry earth began to crack and crumble away from under the tires, rolling in a miniature avalanche down the steep declivity into the water. And not until Wemple had backed fifty yards down the narrow road did he find solid resting for the car. He came ahead on foot and examined the acute angle formed by the two zig-zags. Together with Davies he planned what was to be done.

"When you come you've got to come a-humping," Davies advised. "If you stop anywhere for more than seconds, it's good night, and the walking won't be fine."

"She's full of fight, and she can do it. See that hard formation right there on the inside wall. It couldn't have come at a better spot. If I don't make her hind wheels climb half way up it, we'll start walking about a second thereafter."

"She's a two-fisted piece of machinery," Davies encouraged. "I know her kind. If she can't do it, no machine can that was ever made. Am I right, Beth?"

"She's a regular, spunky she-devil," Miss Drexel laughed agreement. "And so are the pair of you—er—of the male persuasion, I mean."

Miss Drexel had never seemed so fascinating to either of them as she was then, in the excitement quite unconscious of her abbreviated costume, her brown hair flying, her eyes sparkling, her lips smiling. Each man caught the other in that moment's pause to look, and each man sighed to the other and looked frankly into each other's eyes ere he turned to the work at hand.

Wemple came up with his usual rush, but it was a gauged rush; and Davies took the post of danger, the outside running board, where his weight would help the broad tires to bite a little deeper into the treacherous surface. If the road-edge crumbled away it was inevitable that he would be caught under the car as it rolled over and down to the river.

It was ahead and reverse, ahead and reverse, with only the briefest of pauses in which to shift the gears. Wemple backed up the hard formation on the inside bank till the car seemed standing on end, rushed ahead till the earth of the outer edge broke under the front tires and splashed in the water. Davies, now off, and again on the running board when needed, accompanied the car in its jerky and erratic progress, tossing robes and coats under the tires, calling instructions to Drexel similarly occupied on the other side, and warning Miss Drexel out of the way.

"Oh, you Merry Olds, you Merry Olds, you Merry Olds," Wemple muttered aloud, as if in prayer, as he wrestled the car about the narrow area, gaining sometimes inches in pivoting it, sometimes fetching back up the inner wall precisely at the spot previously attained, and, once, having the car, with the surface of the roadbed under it, slide bodily and sidewise, two feet down the road.

The clapping of Miss Drexel's hands was the first warning Davies received that the feat was accomplished, and, swinging on to the running board, he found the car backing in the straight-away up the next zig-zag and Wemple still chanting ecstatically, "Oh, you Merry Olds, you Merry Olds!"

There were no more grades nor zigzags between them and Tampico, but, so narrow was the primitive road, two miles farther were backed before space was found in which to turn around. One thing of importance did lie between them and Tampico—namely the investing lines of the constitutionalists. But here, at noon, fortune favored in the form of three American soldiers of fortune, operators of machine guns, who had fought the entire campaign with Villa from the beginning of the advance from the Texan border. Under a white flag, Wemple drove the car across the zone of debate into the federal lines, where good fortune, in the guise of an ubiquitous German naval officer, again received them.

"I think you are nearly the only Americans left in Tampico," he told them. "About all the rest are lying out in the Gulf on the different warships. But at the Southern Hotel there are several, and the situation seems quieter."

As they got out at the Southern, Davies laid his hand on the car and murmured, "Good old girl!" Wemple followed suit. And Miss Drexel, engaging both men's eyes and about to say something, was guilty of a sudden moisture in her own eyes that made her turn to the car with a caressing hand and repeat, "Good old girl!"

THE END