The first leap revealed the mystery of the man's appearance. Behind this rock, which was barely sufficient shelter for his head, he had excavated a pit sufficient to shelter his crouching body and the sand which he removed for this purpose had been spread evenly over the slope so that no suspicion might be created in the most watchful eye. He had sprung from his concealment and was now working to loosen the half-hitch from the rock. As the knot came free Alcatraz was turning and now Perris faced the charge with the rope caught in his hand. What could he do? There was only one thing, and the stallion saw the heavy revolver bared and levelled at him, a flickering bit of metal. He knew well what it meant but there was no hope save to rush on; another stride and he would be on that frail creature, tearing with his teeth and crushing with his hoofs. And then a miracle happened. The revolver was flung aside, a gleaming arc and a splash of sand where it struck; Red Perris preferred to risk his life rather than end the battle before it was well begun with a bullet. He crouched over the rope as though he had braced himself to meet the shock of the charging stallion. But that was not his purpose. As the stallion rushed on him he darted to one side and the fore hoof with which Alcatraz struck merely slashed his shirt down the back. A feint had saved him, but Alcatraz was no bull to charge blindly twice. He checked himself so abruptly that he knocked up a shower of sand, and he turned savagely out of that dust-cloud to end the struggle. Yet this small, mad creature stood his ground, showed no inclination to flee. With the rope he was doing strange things, making it spin in swift spirals, close to the ground. Let him do what he would, his days were ended. Alcatraz bared his teeth, laid back his ears, and lunged again. Another miracle! As his forefeet struck the ground in the midst of one of those wide circles of rope, the red-headed man lunged back, the circle jumped like a living thing and coiled itself around both forefeet, between fetlock and hoof. When he attempted the next leap his front legs crumbled beneath him. At the very feet of Red Perris he plunged into the sand. Once more he whirled to regain his lost footing, but as he turned on his back the rope twisted and whispered above him; the off hind leg was noosed, and then the near one--Alcatraz lay on his side straining and snorting but utterly helpless.