Frank never moved, only watched, and presently he chuckled softly to himself, for he had caught a glimpse of two yellow, glowing balls of light that shone in the semi-darkness under the trees like globes of phosphorus.

“Our first wildcat, come to see what sort of fellows have invaded its territory. Well, I believe in giving all strangers a warm reception, and here’s to you, old chap.”

As he thought thus he gently began to elevate his gun. The invader meanwhile had continued to advance until its whole crouching figure was plainly outlined.

HE DODGED JUST IN TIME TO ESCAPE THE FURIOUS LEAP OF A WILDCAT.

The crash of the gun brought the other three out of the tents in a mad scramble, under the impression that either the wild man or the two hoboes had invaded the camp.

“Where are they? Let me get a crack at the scamps!” shouted Jerry.

There was an angry snarl, and he dodged just in time to escape the furious leap of a wildcat that had been crouching on some part of the lower bluff, entirely unseen by the sentinel.