The next moment Whirlwind burst out of the ravine into the open country, and in the same instant came face to face with another horseman. He was the Assiniboine chieftain, who alone had ridden hard along the side of the canyon on the ground above, in order to head off the flying fugitive, and had arrived just in time to do so. He scorned to take any companion with him, for he feared no living man and was sure of overcoming the audacious stranger that had roused his fury. The Assiniboine must have heard the thunder of the approaching hoofs, for he had checked his own horse, on which he sat awaiting the appearance of the Shawanoe. When the latter caught sight of his face he had his rifle at his shoulder and was in the act of pressing the trigger. Deerfoot saw he had no time to use his own weapon, for quickly as he might aim it the other would be discharged first. In the language of the modern West, the Assiniboine "had the drop" on the Shawanoe. There was but one thing to do, and Deerfoot did it in the twinkling of an eye. He flung his body to the other side of his steed, sustaining himself by bending his toes over the base of the stallion's neck. When I add that the foot with which he performed this remarkable bit of horsemanship was the one with the sprained ankle, you may faintly imagine the wrenching torture he suffered. Only by a superhuman effort did he keep control of his senses. The Assiniboine fired at the moment of the lightning-like shift of position, and Deerfoot heard the zip of the bullet as it sped across the space covered less than a second before by his body. There is a lurking devil in the most saintly disposition, and that which slumbered in the breast of the young Shawanoe now flamed to a white heat. Swinging back to the upright posture he called: "Now, Whirlwind, run him down!" [Illustration: "Now, Whirlwind, Run Him Down."] The stallion felt the pressure of the knees, understood the command, and ablaze with rage, charged like a cyclone for the other horse. In a flash he crashed into the animal, hurling him sidelong to the earth and rolling him completely over from the terrific force of the impact. But his rider was a fine horseman and leaped to the ground before the collision. Whirling about he faced the Shawanoe, with knife drawn, for there was no time to reload his gun. He was now at the mercy of Deerfoot, whose weapon was loaded. But for the disabled limb he would have leaped to the earth and assailed the other. He would have done the same had there been two enemies before him; he would have done the same had there been three; but he was not the fool to engage in a fight when he had but a single leg to stand upon. The panic-stricken horse, having clambered to his feet, dashed away. Whirlwind assumed his statue-like pose and Deerfoot brought his rifle to a level, with the Assiniboine staring into the muzzle.