It darted out to the length of the rope, where it was checked abruptly, the shock throwing Aggie entirely out and into the stream. Tish caught the knife from the supper tray to cut us loose, and while Tish cut I pulled Aggie in, wet as she was. The boat was straining and panting, and, on being released, it sprang forward like a dog unleashed.

Aggie had swallowed a great deal of water and was most disagreeable; but the Mebbe was going remarkably well, and there seemed to be every prospect that we should get back to the camp in good order. Alas, for human hopes! Mr. McDonald was not very agreeable.

"You know," he said as he waited for his supper to float within reach, "you needn't be so blamed radical about everything you do! If you object to my hanging round, why not just say so? If I'm too obnoxious I'll clear out."

"Obnoxious is hardly the word," said Tish.

"How long am I to be a prisoner?"

"I shall send letters off by the first boat."

He caught the raft just then and examined the supper with interest.

"Of course things might be worse," he said; "but it's dirty treatment, anyhow. And it's darned humiliating. Somebody I know is having a good time at my expense. It's heartless! That's what it is—heartless!"

Well, we left him, the engine starting nicely and Aggie being wrapped in a tarpaulin; but about a hundred yards above the island it began to slow down, and shortly afterward it stopped altogether. As the current caught us, we luckily threw out the anchor, for the engine refused to start again. It was then we saw the other canoes.

The girl in the pink tam-o'-shanter was in the first one.