"If they see you hanging around the boathouse they may smell a mouse."
"I'll be careful. I have a right to look after my motor boat, you know."
"That's so—I forgot that."
The youths walked to the boathouse and, on the sly, looked at the craft they had towed over from Bush Island. It was certainly an Oak Hall rowboat, and Nat breathed a little sigh of relief.
The two lads were just on the point of leaving the boathouse when Job Haskers came in, followed by a man who took care of the boats.
"Siller tells me you were out in your motor boat this afternoon," said Job Haskers. "Did you see anything of Doctor Clay and Mr. Dale?"
"No, sir," answered Nat Poole.
"Were they out in a boat?" asked Merwell.
"Yes, they went for a row about four o'clock, and they have not yet got back. It is strange, for they said nothing about being away for supper."
"Well, we didn't see them," answered both Poole and Merwell. Then both left the boathouse and took their way to the gymnasium.
Here, as fate would have it, they ran into Messmer and Henshaw, who were doing some turns on the bars, in company with Gus Plum, who, since his good work on the ball-field, was becoming quite a favorite.
"I don't think I can do many turns to-night,"
