"Get in as close to the roots of it as you can," breathed Rob, hardly daring to speak above a whisper for fear of dislodging his chum by the mere vibration of his voice.

"All right," said Tubby, and Rob could hear him cautiously making his way along his slender aerial perch.

Rob turned his face upward and hailed his corporal.

"Say, Merritt," he cried, "take the fellows, and get back to camp as quick as your legs will carry you, and then get back up here again. Bring ponies and ropes with you—all you can get of them, and maybe Blinky and some of the men had better come."

"All right, Rob. But how about you?"

"I'll wait here. Hurry back, now."

"We will," and an instant later Rob was alone, and his companions were making full speed to the camp.

"How are you making out, Tubby?" called down Rob in a low tone.

"All right. But my legs are cramped. Gee! I was lucky to strike this tree."

"You bet you were. I noticed a few small ones clinging to the rocks as we peeped over, but I didn't think they'd ever be the means of saving a life."