Worrell, the traitor, had been gone nearly an hour from the cavern in which the three fugitives were sleeping, when Rosa Minturn awoke, no doubt because she was not so much in need of sleep as the others, and held a lingering suspicion of the loyalty of the man who had brought them to the retreat. This distrust went to sleep with her, but it is a peculiarity of the mind that the emotions which have been with us through our waking hours frequently remain with us when we are wrapped in slumber. It is as if the innumerable train that is forever wending its way through the mysterious labyrinths of the brain repeats the procession, and those which affected us the most strongly when in command of our senses often do the same when we are unconscious. But without stopping to consider the question, suffice it to say that at the time mentioned Rosa opened her eyes in full possession of her faculties, and with the impression that the man Worrell was an enemy instead of a friend. She did not move at first, supposing he was still within the cavern; but, as she peered cautiously around the dimly lighted space, she saw only the forms of her two sleeping friends. The fact at once deepened the suspicion, and caused her great distress of mind, for all doubt of the hostility of the man was removed upon making the discovery. Still she supposed it possible that he was close at hand, and waited several minutes to see whether he reappeared; but her condition of mind was such that every second of delay caused her increasing uneasiness. "I am sure he has gone to tell Colonel Butler and the Indians where we are," she said to herself, as she rose and walked to where her brother was asleep. Stooping over, she shook him by the shoulder until he opened his eyes and, recognizing her, asked what the matter was. "That man has gone." "Where has he gone?" "To tell the Indians we are here!" Jo sprang to his feet. "What are you talking about, Rosa? What do you mean?" "Just as I say; he has gone to bring the Indians, and will soon be back, too." "How do you know that?" "Don't ask me, but I _know_ what I say." This was alarming news, and though Jo suspected his sister based all upon her dislike of the man, without positive knowledge of the facts, yet he was impressed with the belief that she had good cause for her words. "He may be on the outside, keeping watch," said the youth, after they had talked over the matter. "Wait till I take a look. If he can't be found, we'll awake Ned." Jo crept out of the cavern dreading a hostile shot as he did so, and made as thorough an examination of the surroundings as was possible. He saw nothing of the man whom they missed, that individual at that moment being a quarter of a mile or more away, holding his vehement argument with Captain Bagley about the advance with the six Iroquois upon the sleeping fugitives. His invisibility confirmed the young man in his misgivings as to the treachery of the man.