“There they are, over by that rock, swimming,” said Will Carey, who was present.

The motor boat had come to a stop and now the wind blew it inshore behind a clump of overhanging bushes. From this point those on board watched the antics of the swimmers for several moments.

“I’ve got an idea!” cried Roy Bock suddenly.

“So have I!” added Grimes.

“We’ll tow their sloops out into the lake and cast them adrift.”

“I was going to take their clothes and hide them.”

“Say, let’s do both!” put in Will Carey.

“We want to be careful,” added another student who was present. “If we get caught——”

“We weren’t caught the other day, when we turned Putnam Hall inside out.”

“That’s so,—but the cadets are close by now.”