The outlaw and his captive crossed the brook, and the former, after a few minutes' examination of the ground about the fire, struck the butt of his rifle with his fist, and opened his eyes in great amazement.

"It's the feller that run the foot-race yesterday, as sartin as I'm alive," said he, in a tone of voice which indicated that he did not understand the matter at all; "an' I'd like to know how he come here. The last time I seed him he was a prisoner in the chief's lodge, an' thar were two Injuns guardin' him. See them shoe-prints on the bank of the brook? Thar's where he stood when he ketched them fish. An' here's the pole he used, too. He was layin' on the grass beside that rock, an' when he heered us comin', he run off."

"Which was a lucky thing for him," observed Adam.

"Wal, I don't reckon it will do him any good," replied the outlaw; "'cause arter we eat these yere fish of his'n, we'll hunt him up. If we don't find him, some of the Injuns will, most likely; an' even if he aint ketched at all, how much better off is he than he would be with the chief? Thar aint nothing left of Fort Stockton, an' he can't find no friends short of Fort Benton, an' that's a good hundred miles from here."

Frank was lying in the bushes, not more than twenty feet from the outlaw, and distinctly heard every word of the conversation. The information he gained from it destroyed his last hope. The savages had made the attack upon the trading-post during the previous night, and it had been successful. The soldiers and trappers were all massacred or scattered to the four winds of heaven, and he had no friends to look to for assistance within less than a hundred miles. The prospect before him was certainly most discouraging, but he could not dwell upon it then, for he had other matters to think of. He was in close proximity to a dangerous enemy, and how was he to elude him? This question was answered by the outlaw himself, whose actions suggested to Frank another daring project, which he was prompt to carry into execution. Black Bill laid his rifle upon the ground, and kneeled down beside the brook to drink. Scarcely had he taken a swallow of the water, when he heard footsteps behind him, and upon looking up saw Frank standing over him with his bow in his hand, and an arrow pointed straight at his breast.

"Don't move hand or foot," said the young hunter, so excited that he could scarcely speak. "Your game is up."

Adam was no less astonished at Frank's sudden appearance than was the outlaw; but he quickly recovered his presence of mind, and catching up his captor's rifle, leveled it full at his head.

"Surrender, Black Bill!" he exclaimed. "If you attempt to get up I'll send a ball into you."