"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.

Joe Duncan and Blake Stewart were called the "Moving Picture
Boys," for an obvious reason. They took moving pictures. With
their curious box-like cameras, equipped with the thousand feet of
sensitive celluloid film, and the operating handle, they had risen
from the ranks of mere helpers to be expert operators. And now
they were qualified to take moving pictures of anything from a
crowd, shuffling along the street, to a more complicated scene, such
as a flood, earthquake or volcanic eruption. And, incidentally, I
might mention that they had been in all three of these last
situations.

The first volume of this series is called "The Moving Picture
Boys," and in that I introduced to you Blake and Joe.