The stallion bolted for the open. Only the rock wall checked his headlong flight. Then he wheeled and ran along the wall, bounding over rocks and ditches, stretching out until, with magnificent stride, he was running at his topmost speed. Along one wall and then the other he dashed, round and round and across, until the moment came when panic succeeded to fury, and then his tremendous energies were directed to the displacement of his rider. Wildly he pitched. With head down, legs stiff, feet together, he plunged over the sand, plowing up the dust, and bounding straight up. But he could not unseat his inexorable rider. Yaqui’s legs banded his belly and were as steel. Then the stallion, now lashed into white lather of sweat and froth, lunged high to paw the air and scream and plunge down to pitch again. His motions soon lost their energy, though not their fury. Then he reached back with eyes of fire and open mouth to bite. Yaqui’s huge fist met him, first on the right, then, as he turned, on the left. Last he plunged to his knees and with rumbling heave of anger he fell on his side, meaning to roll over his rider. But the Yaqui’s leg on that side flashed high while his hands twisted hard in the long mane. When the foiled horse rose again Yaqui rose with him, again fixed tight on his back. Another dash and burst of running, wild and blind this time and plainly losing speed, showed the weakening of the stallion. And the time arrived when, spent and beaten, he fell in the sand. “Let Yaqui’s son learn to ride like his father,” said the chief to his gleeful, worshiping son. Then the chief again stalked forth, drawn irresistibly by something in the hour. “Let Yaqui’s son watch and remember to tell his son’s son,” he said. He scattered his riders to block the few passages out of the valley and he ordered his son and all the women of the tribe and their children again to climb high on the rocks, there to watch. The Indian gods said this day marked the rejuvenation of their tribe. Let his son, who would be chief some day, and his people, see the great runner of the Yaquis. Naked except for his moccasins, the giant chief broke into a slow trot that was habitual with him when alone on a trail; and he crossed the stream and the plots of sand, and headed out into the grassy valley where deer grazed with the horses. Yaqui selected the one that appeared largest and strongest of the herd and to it he called in a loud voice, meant as well for the spirit of his forefathers and for his gods, watching and listening from the heights: “Yaqui runs to kill!”