“Don’t be a chump,” advised Bart in a low voice.

“You mind your own business!” snapped Frank.

His two friends paused a moment, as though undecided, and then walked along with Jerry and the others.

“He’s as pig-headed as they make ’em,” commented Bart. “I never saw his beat!”

“Um!” grunted Ned, but what he thought he did not say.

Up and down the lake sailed the Petrel, and as the sun was declining, Bob called to Jerry:

“Head her down to Simpson’s and we’ll have something to eat.”

“That listens good,” laughed Bart.

“Oh, eating is my strong point!” Chunky confessed.