"Gee! look here," said Frank; "here's his tracks. Did you ever see the like of that?"

Certainly I had never fixed my eyes on such enormous cat-tracks as appeared in the yellow dust at the base of the rim wall. The mere sight of them was sufficient to make a man tremble.

"Hold in the dogs, Frank," I called. "Listen. I think I heard a yell."

From far above came a yell, which, though thinned out by distance, was easily recognized as Jones's. We returned to the opening of the break, and throwing our heads back, looked up the slide to see him coming down.

"Wait for me! Wait for me! I saw the lion go in a cave. Wait for me!"

With the same roar and crack and slide of rocks as had attended our descent, Jones bore down on us. For an old man it was a marvelous performance. He walked on the avalanches as though he wore seven-league boots, and presently, as we began to dodge whizzing bowlders, he stepped down to us, whirling his coiled lasso. His jaw bulged out; a flash made fire in his cold eyes.

"Boys, we've got Old Tom in a corner. I worked along the rim north and looked over every place I could. Now, maybe you won't believe it, but I heard him pant. Yes, sir, he panted like the tired lion he is. Well, presently I saw him lying along the base of the rim wall. His tongue was hanging out. You see, he's a heavy lion, and not used to running long distances. Come on, now. It's not far. Hold in the dogs. You there with the rifle, lead off, and keep your eyes peeled."

Single file, we passed along in the shadow of the great cliff. A wide trail had been worn in the dust.

"A lion run-way," said Jones. "Don't you smell the cat?"

Indeed, the strong odor of cat was very pronounced; and that, without the big fresh tracks, made the skin on my face tighten and chill. As we turned a jutting point in the wall, a number of animals, which I did not recognize, plunged helter-skelter down the canyon slope.