"That's right!" panted Joe, the words being fairly jolted out of him. "Head him off—I see!"

"Hold fast!" exclaimed Blake, as the conductor does when a trolley car goes around a curve. "Hold fast!"

There was need of the advice, for a little turn in the road was just ahead of them and Blake intended to take it at almost top speed.

Bumping, swaying, jolting, spitting fire and smoke, with a rattle, clatter and bang, on rushed the motor cycle on its errand of rescue.

"Hark!" cried Joe, close to Blake's ear, "Listen!"

"Can't, with all this racket!" yelled back Blake, for he had opened the throttle to gain a little increase of power. "What's the matter?"

"I thought I heard the horse."

"Hearing him won't do any good," observed Blake grimly. "We've got to see him and get ahead!"

And he turned on a little more gasoline.

While Blake and Joe are thus speeding to the rescue of the men in the runaway, we will take a few moments to tell our new readers something about the boys who are to figure prominently in this story.