He checked his horse instantly, listening as the wind swept past him over the cattle. But they must already have smelled it, for they had ceased their milling. The whole herd stood motionless, the indistinct forms close to him in the dark, showing their bald faces lifted to drink the sweet wet breath that came over the rim. Then they started again, but faster, and with a rumbling from their hoarse throats that tightened Wade's grip on the reins. The sound seemed to come out of the earth, a low, rumbling mumble, as dark as the night and as wide as the plain, a thick inarticulate bellow that stood every rider stiff in his stirrups. The breeze caught the dust and carried it back from the gray-coated, ghostly shapes, and Wade saw that the animals were still moving in a circle. If he could keep them going! He touched his horse to ride on with them, when across the black sky flashed a vivid streak of lightning. There was a snort from the steers, a quick clap of horns and hoofs from far within the herd, a tremor of the plain, a roar, a surging mass--and Wade was riding the flank of a wild stampede. Before him, behind him, beside him, pressing hard upon his horse, galloped the frenzied steers, and beyond them a multitude, borne on, and bearing him on, by the heave of the galloping herd. Wade was riding for his life. He knew it. His horse knew it. He was riding to turn the herd, too, back from the rim, as the horse also knew. The cattle were after water--water-mad--ready to go over the precipice to get it, carrying horse and rider with them. Wade was the only rider between the herd and the rim. It was black as death. He could see nothing in the sage, could scarcely discern the pounding, panting shadows at his side; but he knew by the swish of the brush and the plunging of the horse that the ground was growing stonier, that they were nearing the rocks. To outrun the stampede was his only chance. If he could come up with the leaders he might yet head them off upon the plain and save the herd. There were cattle still ahead of him; how many, what part of the herd, he could not tell. But the horse knew. The reins hung on his straight neck, while Wade, yelling and firing into the air, gave him the race to win, to lose. Suddenly they veered and went high in the air, as a steer plunged headlong into a draw almost beneath their feet. They cleared the narrow ravine, landed on bare rock and reeled on. They were riding the rim. Close to their left bore down the flank of the herd, and on their right, under their very feet, was a precipice, so close that they felt its blackness--its three hundred feet of fall!