"He'll give us extra lessons for this," grumbled Roger. "Just wait and see."

The next day the weather remained fine, and a number of the students went out coasting on a hill running down to the river. Dave and his friends wished they could go along, as both Sam and Ben had big bobs capable of carrying six boys each. But after the school session they had to report to Job Haskers, and he kept them in until supper-time, doing examples in arithmetic.

"Say, Dave, we ought to square up for this," said Phil. "See what a lot of fun coasting we've missed."

"Just what I say," added the senator's son. "We must get even with old Haskers somehow."

"Remember the time we put the ram in his room?" said Sam, with a grin.

"Yes, and the time we put the bats in," added Phil. "My, but didn't that cause a racket!"

"Let us put something else in his room this time," said Ben.

"Oh, that's old," answered Dave. "We ought to hit on something new."

"If we could only play some joke on him outside of the academy," said the senator's son.

"He is going to Oakdale to-night; I heard him mention it to Mr. Dale."