"My only regret," concluded Frank, "was that I did not have two good hands with which to handle the rascal."
"And my regret is that I was not there to handle him for you!" cried Jack Diamond.
"I wonder how the fellow got in here?" exclaimed Collingwood. "I'll have to inquire into that."
"He can't be far away," cried one of the angry lads. "Let's get out and nab him!"
"Come on! come on!" was the general cry, and there was a rush for the door.
But the unknown had not lingered in the vicinity of the boathouse. He was not found, which made it plain that he had taken to his heels as soon as he landed outside the window.
"Too bad!" growled Collingwood. "A good soak in the river is what he'd got, if we'd caught him."