Chet had wondered how they would leave the water without trace, but again Towahg was ready. A stone where the water splashed would show no mark of bare feet. From it he leaped into the air toward a swaying vine. He missed, tried again, and finally grasped it. And the rest was a repetition of what had been done before. * * * * * He lowered a vine as Chet had taught him, pulled the slim figure of Chet up to the dizzy heights of the jungle trees, then took Chet's one arm in a grip of chilled steel and threw him across his back, while he swung sickeningly from limb to limb, up through the branches of another grotesque tree where its queerly distorted limbs sagged and swung them to its fellow some fifty feet away. It was a wild ride for the pilot. "I've driven everything that's made with an engine in it," he told himself, "but this one-ape-power craft has them all stopped for thrills." And at last when even Towahg's chest that seemed ribbed with steel, was rising and falling with his great breaths, Chet found himself set down on the ground, and he patted the black on the shoulder in the gesture that meant approval. "Water and air," he said; "it'll bother them to trail us over that route. Towahg, you're there when it comes to trapeze work. Now, if you can find the way back again--!" And Towahg could, as Chet admitted when, after a series of eventless days, they came again to the big divide above the reaches of Happy Valley. And the grip of Harkness' hand, and the tears in Diane's eyes brought a choke to his throat until the voluble apologies of a penitent Herr Kreiss and the antics of a Towahg, recipient of many approving pats, turned the emotion into the safer channel of laughter. "But I think we switched them off for good," Chet said, in conclusion of his recital; "I believe we are as safe as we ever were. And I've only one big regret: "If I could just have been around somewhere when friend Schwartzmann found his scouts had led him up a blind alley, it would have been worth the trip. He did pretty well when he started cussing us out before; I'll bet he pumped his vocabulary dry on them this time." CHAPTER XVII _Hunted Down_ Work on the house was resumed. "And when it is done," said Diane with a gay laugh, "Walter and I shall have our wedding day. Now you see why you were wanted so badly, Chet; it was not that we worried for you, but only that we feared the loss of the one person on the Dark Moon who could perform a marriage ceremony." "And I thought all along it was my clever carpenter work that had captivated you," responded Chet, and tried to fit the splintered end of a timber into a forked branch that made an upright post. And each day the house took form, while the sun shone down with tropical warmth where the work was going on.