Winn was free, and acting upon the impulse of the moment, he slipped behind a great tree-trunk, stole noiselessly a few paces farther, and then dashed away with the speed of a deer back over the trail leading to the river. He did not pause when he reached the camp in which he had passed the night so unhappily, but bounded down the bank to the water's edge. Here he cast loose the painter of the skiff that had brought Mr. Riley and his men to the island, and, with a mighty shove towards the channel, gave a spring that landed him at full length in its bottom. Here he lay breathless and almost motionless for the next thirty minutes, or until his craft had drifted below the tail of the island, and was spinning down the main channel of the great river. CHAPTER XI. BILLY BRACKETT'S SURPRISING SITUATION. When Billy Brackett set forth on his search for a nephew and a runaway raft he did not anticipate any difficulty in finding them. The appearance of the raft had been minutely described to him, and, according to this description, it was too distinctive in its character to be mistaken for anything else. Three shanties, and they of unusual construction, on a raft of that size formed a peculiarity sufficient to arrest the immediate attention of all river men. Thus the young engineer felt certain that by making an occasional inquiry and proceeding at a speed at least double that of the raft, he could easily trace and overtake it, even though it should not run aground, which he thought more than likely to happen early in its voyage. So Billy Brackett rowed down the creek without a trace of anxiety to mar the pleasure of the adventure into which he had so unexpectedly tumbled. One peculiarity of this light-hearted young man was that no proposition to leave a beaten track and strike into an unexplored trail, even though it led in exactly the opposite direction, could be too absurd or unexpected to meet with his ready approval, always providing it promised plenty of adventure. At the same time he never lost sight of the fact that he had a living to earn, besides a professional reputation to win and maintain. Consequently he generally managed to make his adventures keep step with his duties. In the present instance he felt that Major Caspar's aid was necessary to the fulfilling of his timber contract. He also realized that the only way to obtain it was by taking his brother-in-law's place in searching for the lost raft and navigating it down the river to a market. He had no family ties to bind him to times or places, and with Bim for company he was ready to start at any moment for any portion of the globe.