I never heard of a bighorn in the Canyon." It was indicative of the strong grip Old Tom had on us that we at once forgot the remarkable fact of coming upon those rare sheep in such a place.
Jones halted us presently before a deep curve described by the rim wall, the extreme end of which terminated across the slope in an impassable projecting corner.
"See across there, boys.

See that black hole.

Old Tom's in there." "What's your plan ?" queried the cowboy sharply.
"Wait.

We'll slip up to get better lay of the land." We worked our way noiselessly along the rim-wall curve for several hundred yards and came to a halt again, this time with a splendid command of the situation.

The trail ended abruptly at the dark cave, so menacingly staring at us, and the corner of the cliff had curled back upon itself.