Coaley, in a place where he must pick his way between boulders, paused and lifted his head, staring back the way they had come. Lance roused himself from gloomy speculations and looked back also, but he could not see anything behind them save a circling hawk and the gray monotone of the barren plateau, so he urged Coaley in among the boulders. There must be something back there, of course. Coaley was too intelligent a horse to make a mistake. But it might be some drifting range stock, or perhaps a stray horse. Certainly it was no one from the Devil's Tooth, for Sam Pretty Cow had set off to mend a fence in the lower pasture, and Shorty never rode a horse nowadays for more than a half mile or so; and six o'clock in the morning would be rather early for chance riders from any other ranch. With a shrug, Lance dismissed the matter from his mind. Where a faint, little-used trail went obliquely down the bluff to the creek bottom, Lance saw again the hoofprints which the rocky ground had failed to reveal. He could see no reason for taking this roundabout course to go up the creek, but he sent Coaley down the trail, reached the bottom and discovered that the tracks once more struck off into rocky ground. His face hardened until his resemblance to Tom became more marked than usual, but where the tracks led he followed. Too often had he trailed stray horses in the past to be puzzled now, whether he could see the hoofprints or not. They must have made for the other side of the creek, gone up Wild Horse gulch or the Little Squaw. There was just one place where they could cross the creek without bogging in the tricky mud that was almost as bad as quicksand. He therefore pulled out of the rocky patch and made straight for the crossing. He would soon know if they had crossed there. If they had not, then they would have turned again up Squaw Creek, and it would be short work cutting straight across to the only possible trail to the higher country.