Shadd appeared to be slow for the first time since he had been sighted. With keen eyes Shefford watched the corner where he and the others had escaped from that murderous volley. But Shadd did not come. The sun had lost its warmth and was tipping the lofty mesa to his right. Soon twilight would make travel on those walls more perilous and darkness would make it impossible. Shadd must hurry or abandon the pursuit for that day. Shefford found himself grimly hopeful. Suddenly he heard the click of hoofs. It came, faint yet clear, on the still air. He glued his sight upon that corner where he expected the pursuers to appear. More cracks of hoofs pierced his ear, clearer and sharper this time. Presently he gathered that they could not possibly come from beyond the corner he was watching. So he looked far to the left of that place, seeing no one, then far to the right. Out over a bulge of stone he caught sight of the bobbing head of a horse--then another--and still another. He was astounded. Shadd had gone below that place where the attack had been made and he had come up this steep slope. More horses appeared--to the number of eight. Shefford easily recognized a low, broad, squat rider to be Shadd. Assuredly the Piute did not know this country. Possibly, however, he had feared an ambush. But Shefford grew convinced that Shadd had not expected an ambush, or at least did not fear it, and had mistaken the Indian's course. Moreover, if he led his gang a few rods farther up that slope he would do worse than make a mistake--he would be facing a double peril. What fearless horsemen these Indians were! Shadd was mounted, as were three others of his gang. Evidently the white men, the outlaws, were the ones on foot. Shefford thrilled and his veins stung when he saw these pursuers come passing what he considered the danger mark. But manifestly they could not see their danger. Assuredly they were aware of the chasm; however, the level upon which they were advancing narrowed gradually, and they could not tell that very soon they could not go any farther nor could they turn back. The alternative was to climb the slope, and that was a desperate chance. They came up, now about on a level with Shefford, and perhaps three hundred yards distant. He gripped his rifle with a fatal assurance that he could kill one of them now. Still he waited. Curiosity consumed him because every foot they advanced heightened their peril. Shefford wondered if Shadd would have chosen that course if he had not supposed the Navajo had chosen it first. It was plain that one of the walking Piutes stooped now and then to examine the rock. He was looking for some faint sign of a horse track.