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104 off, with Paul Blum between them. Fenton Hardy turned to his sons with a smile of approval.

"Good work!" he said. "You haven't lost any time making good use of the new boat, I see."

"I only wish we could have got hold of that roll of counterfeit bills he threw overboard," said Frank disconsolately.

"Well, it can't be helped now—although that would have cinched the case against Blum. He has been operating in this neighborhood for over a week. But I expcetexpect [sic] the Secret Service men will have enough evidence to have him punished."

The fog was beginning to lift and the Hardy boys had no further doubt of their ability to locate the boathouse. They felt they had enough of motorboating for one morning, so they said good-bye to their father and left the wharf, guiding the Sleuth safely to the boathouse.

"If every trip we have in the Sleuth is as exciting as that one, we'll have no reason to kick," Frank remarked, as he shut off the engine.