"Stay where you are!" he called to his wondering wife. "I am going to make a fight with them. Our only hope is in keeping them back until it is dark." He was out of the saddle while speaking, and, dropping on his hands and knees, crawled up the swell and looked over. CHAPTER XI. AT BAY. George Starr's pony, left to himself, wandered off to the side of the other one, on which sat Mrs. Starr, with Dot. The latter reached out her chubby hand and patted the silken nose of the intelligent horse, who liked the caress. The mother was too agitated to notice this by-play, but kept watch for her husband. The latter crept to within a foot or two of the top of the swell, when he quickly but cautiously raised his head and peered over at the Sioux. But a minute or two had passed since exchanging words with Bent Arm, but that brief period was improved as much by one party as the other. The Sioux leader's horse was in the stream to the depth of his knees, and the second Indian was in the act of entering, with the others close behind him. It was no time for hesitation, for that meant death. Starr shoved his Winchester in front, so that the muzzle projected over the swell, took deliberate aim at Bent Arm, and let fly. The distance was short, the rancher was an excellent marksman, and the bullet bored its way through the breast of the painted miscreant, who hardly knew what hurt him. With a screech, he threw up his arms, one grasping his gun, and toppled from the back of his pony, falling with a loud splash into the water, where for the moment he disappeared under the surface. George Starr was never cooler in his life. He was fighting not only for his own existence, but for those who were dearer to him than that existence. He knew the mercilessness of the red men near at hand, and he was equally merciless to them. This proceeding, as may be supposed, caused consternation for a moment among the advancing Sioux. The warrior immediately behind the leader stopped his pony abruptly, stared at the tuft of grass above which the faint puff of smoke was curling; and then, fearful of a second shot aimed at himself, whirled his animal about and sent him at one bound up the bank of the stream, where his companions, no less dismayed than he, threw themselves forward on the backs of their horses, to shield themselves from the aim of the rancher. It was at this crisis that George Starr committed two blunders which threatened the very doom he was trying to escape. One of those errors, however, did credit to his heart, if not to his head.