Using what patience they could, they remained at the edge of the cliff, crouched there, until they judged it was about two o'clock in the morning, the night being then at its darkest. Tandakora still slept against his tree, and the fires were almost out. The red gleam from the uniform of Grosvenor could no longer be seen, but Robert had marked well the place where he sat, and he knew that the young Englishman was there, sleeping the sleep of utter exhaustion. Everything was still and peaceful. "After all, we could escape through their lines, now," whispered Robert. "So it turns out," said the hunter. "But it looks as if we were held back in order that we might save Grosvenor." "That too may be true." "It is time to go," said Tayoga. "Farewell, Great Bear! Farewell, Dagaeoga! May we meet at the mouth of the creek as we have planned, and may we be four who meet there and not three!" "May all the stars fight for us," said Robert with emotion, and then he and Willet moved away among the bushes, leaving Tayoga alone at the cliff's rim. Young Lennox knew that theirs was a most perilous venture. Had he given himself time to think about it he would have seen that the chances were about ten to one against its success, but he resolutely closed his mind against that phase of it and insisted upon hope. His was the spirit that leads to success in the face of overwhelming odds. Willet was first, and Robert was close behind. Neither looked back, but they knew that Tayoga would not move, until the alarm was given, and they could flee away with the pursuit hot upon their heels. Young Lennox saw again that they could now have slipped through the Indian lines, but the thought of deserting Grosvenor never entered his mind. It seemed though as if all the elements of nature were conspiring to facilitate the flight of the hunter and himself. The sentinels, whose dusky figures they were yet able to see, moved sleepily up and down. No dead wood that would break with a snap thrust itself before their feet. The wilderness opened a way for them. "I think a warrior or two may be watching in the forest to the north of us," whispered Willet, "but we'll go through the line there. See that fellow standing under the tree, about a hundred yards to the south. He's the one to give the alarm." But circumstances still favored them. Nature was peaceful. When they wished for the first time in their lives that their flight should be detected, nothing happened, and the vigilance of the warriors who usually watched so well seemed to be relaxed. Robert was conscious that they were passing unseen and unheard between the sentinel on the north and the sentinel on the south.