But suddenly they were aroused by shots, wild yells, and rapid hoof-falls, and down upon them dashed a band of mounted warriors, while others had killed the three guards and the cattle were stampeding in every direction. But the train hands quickly sprung to their feet, rallied promptly for the fight, and met the advancing red-skins with a volley from their Mississippi yagers, which were loaded with ball and buck-shot, and checked their advance. Knowing that they could not hold out there the train-master called out: "Boys, make a run for the river, and the banks will protect us." All started, when Billy called out: "Don't let us leave these wounded boys." They turned at his word, to find that two of their number had been wounded, one seriously in the side and the other in the leg. Raising them in their arms they started at a run for the bank, ere the Indians had rallied from the fire that met them, and reached it in safety, though the man who had been shot in the side was dead ere they got there. A short consultation was then held, and it was decided to make their way back to Fort Kearney, by wading in the river and keeping the bank as a breast work. A raft of poles was constructed for the wounded man, and the party started down the stream, protected by the bank, and keeping the Indians at bay with their guns, for they followed them up closely. As night came on, utterly worn out with wading and walking, Billy dropped behind the others; but trudged manfully along until he was suddenly startled by a dark object coming down over the bank. It was moonlight, and he saw the plumed head and buckskin-clad form of an Indian, who, in peering over the bank to reconnoiter had lost his balance, or the earth had given way, and sent him down into the stream. He caught sight of Billy as he was sliding down, and gave a wild war-whoop, which was answered by a shot from the boy's rifle, for though taken wholly by surprise he did not lose his presence of mind. Hearing the war-whoop and the shot, and at the same time missing Billy, the men came running back and found him dragging the red-skin along in the stream after him. "It's my Injun, boys," he cried exultantly. "It are fer a fact, an' I'll show yer how ter take his scalp," replied Frank McCarthy the train-master, and he skillfully cut off the scalp-lock and handed it to Billy, adding: "Thar, thet is yer first scalp, boy, an' I'm willin' ter swear it won't be yer last, for Billy, you is ther boss boy I ever see." Billy thanked McCarthy for the gory trophy, gave a slight shudder as he took it, and said significantly: "I ain't so tired as I was, and I guess I'll keep up with you all now, for if the bank hadn't caved in that Injun would have had me." At daylight they came in sight of Kearney, and after a volley or two at the Indians still dogging their steps, made for the fort and reached it in safety.