So presently he turned away and set himself to the work of finding the man with the rifle.
To that end he first of all climbed the tallest pinon tree in sight; a tree that stood on a rise of ground apart from its brothers.

From the concealment of its branches, he surveyed his surroundings carefully, noting especially the notched unevenness of the butte's rim and how just behind him it narrowed unexpectedly to a thin ridge not more than a couple of hundred yards in breadth.

A jagged outcropping cut straight across and Casey saw how yesterday he had mistaken that ledge for the rim of the butte.

His man must have been out on the point beyond him all the while.

He was out there now, very likely; there, or down in the camp he had watched yesterday like a vulture.
His search having narrowed to an area easily covered in an hour or two, Casey turned his head and examined as well as he could the deep canyon that had bitten into the butte and caused that narrow peak.