Chester Arlington sat up, looking dazed and frightened.

“Stop that horse!” he cried, in genuine alarm. “A hundred dollars to the man who stops that horse!”

Even as he uttered the words, Dick Merriwell caught a bicycle from the hands of a boy who had ridden up and was standing beside his machine. On to the bicycle leaped the captain of the eleven, alighting in the saddle and catching the pedals instantly with his feet. Away he went after the runaway, somewhat slowly at first, but with swiftly increasing speed.

“Hi! hi! Runaway! Runaway!”

“Look out for that horse!”

“The girl will be hurt!”

“She may be killed!”

“Look at the fellow on the bike!”

“He can’t catch the horse!”

“Couldn’t stop him if he did!”