Fred was white with indignation.

“The coward!” he exclaimed. “If I could get on that running board, I’d drag him from his seat!”

“He sure ought to have a licking,” agreed Bill. “But we’d have to be some good little sprinters to catch him now.”

“Look, fellows!” cried Billy Burton excitedly, “he’s stopped. There must be something the matter with his engine.”

They all started to run.

Andy had dismounted quickly and was working desperately to get his stalled engine going.

He got it sparking at last, but before he could jump into the seat the boys were on him.

“No, you don’t!” cried Fred, getting between him and the machine. “I’ve got an account to settle with you.”

“Get out of my way,” snarled Andy, trying to push past.

Fred’s answer was a blow that caught the bully under the chin and sent his teeth together with a snap.