With a look of intense hatred in his face, the swindler followed Bob until they came to a dark spot in the road and caught the youth by the collar.

CHAPTER XIX
BOB ON THE ROAD

For the instant Bob could not make out who had caught hold of him. The road was dark, and the fair-ground swindler had come up in his rear.

He thought he must be the victim of some footpad, and, dropping his bundle of chemicals, he strove to break away.

“Let go of me!” he cried.

“I will when I have you where I want you,” returned the swindler.

Bob fancied he recognized the voice, but he was not sure. He renewed his struggle and had almost succeeded in breaking away when the swindler hit him a blow in the neck that dazed him.

“Now we’ll see who’s ahead,” hissed the man. “I’ll teach you to interfere with Joe Horning’s business.”

“I’ll give you away to the police the next time,” returned Bob, although rather faintly. “Let go your hold!”

“Not much! See here, you served me a mean trick, and I promised to get square. I don’t intend to lose ten dollars for nothing. How much have you got in your pockets?”