"Let go, sir!" he ordered, sternly, and Bim instantly obeyed the command. Then realizing that discretion is the better part of valor when the odds are three to one, the young engineer, with the dog in his arms, ran to the side of the raft, sprang into the skiff, and shoved off. He was followed by a storm of threats and angry imprecations, at which he only smiled, as he took to his oars and pulled through the friendly darkness towards the landing from which the raft had already drifted quite a distance.

Making his way to the wharf-boat, and giving the watchman a quarter to look out for his skiff until morning, Billy Brackett, weary and disheartened, sought such accommodation as the only hotel of the little town afforded. All night he tossed sleeplessly on his uncomfortable bed, striving in vain to unravel the mystery in which the fate of his nephew and of Major Caspar's raft had become enshrouded.

In the morning he strolled undecidedly down to the wharf-boat, and, missing his skiff, asked the watchman, who was just going off duty, what he had done with it.

"Why, there it is, sir, just where you left it," answered the man, in a surprised tone, pointing to a skiff that Billy Brackett was certain he had never seen before.

"That is not my boat," he said.

"It is the one you came in last night," answered the watchman. "And here is the coat you left in it. I took the liberty of bringing it in out of the dew."

The young engineer looked at the coat the man was holding towards him, and shook his head.

"That is not mine, either," he said.

"Whose is it, then?"

"I'm sure I don't know. You'd better look in the pockets. They may contain some clew."