"You're always thinking about apples and souvenirs. Let's crawl in under here."

They had scrambled to the top of the precipitous ascent and found themselves upon the broken edge of the forest amid a black chaos of piled up rock and underbrush. Evidently, the land here was giving way, little by little, for here and there they could see a tree canting tipsily over the edge, its network of half-exposed roots making a last gallant stand against the erosive process and helping to hold the weight of the great boulders which ere long would crash down into the marshy lowlands.

They crept into a sort of leafy cave formed by a fallen tree and stretched their weary bodies and relaxed their tense nerves after what had seemed a nightmare.

"As long as we're going to join the army," said Tom, "we might as well make a rule now. We won't both sleep at the same time till we're out of Germany. We got to live up to that rule no matter how tired we get."

"I'm game," said Archer. "You go to sleep now and when I get good and sleepy I'll wake you up."

"In about two hours," said Tom. "Then you can sleep till it's light. Then we'll see if it's safe to stay here. Keep looking in that direction—the way we came. And if you see any lights, wake me up."

Archer did not obey these directions at all, for he sat with his hands clasped over his knees, gazing down across the dark marshland below. Two hours, three hours, four hours, he sat there and scarcely stirred. And as the time dragged on and there were no lights and no sounds he took fresh courage and hope. He was beginning to realize the value of the stolid determination, the resourcefulness, the keen eye and stealthy foot and clear brain of the comrade who lay sleeping at his side. He had wanted to tell Tom Slade what he thought of him and how he trusted him, but he did not know how. So he just sat there, hour in and hour out, and let the weary pathfinder of Temple Camp sleep until he awoke of his own accord.

"All right," said Archer then, blinking. "Nothing happened."