Suddenly the animal threw up his great head, and in another instant would have announced his presence to all the country thereabout by a sonorous, far-reaching bray. Before he could open his mouth, however, one of the scouts sprang from his pony and seized him by the nose. In the struggle that followed, the end of the lariat held by Wolf-Tongue was jerked from his hand. At the same moment the mule succeeded in shaking off the scout with such violence that he staggered for nearly a rod before recovering his balance. Then, so quickly that Glen was very nearly flung from his back, the animal sprang to the crest of the little ridge, and dashed, with astonishing speed, towards the corral that had been his home for so long, and which he had scented so plainly the moment he reached its vicinity.