"Something's busted--gasoline pipe, I guess!" cried Blake. "Come
on! We've got to run for it!"

The accident had occurred only a short distance from the road.
Together the two chums, leaping clear of the motor cycle, made for
it on the run.

But they were too late. They had a glimpse of the runaway horse
dashing straight at the fence barrier.

The next moment there was a splintering crash, and he was through
it.

"Oh!" cried Blake.

The thunder of the horse's hoofs on what was left of the wooden
approach to the broken bridge drowned his words.

Then the animal, with a leap, disappeared over the jagged edges of
the planks. The boys expected to see the carriage and the two
occupants follow, but to their intense surprise, the vehicle
swayed to one side, caught somehow on one of the king beams of the
bridge and hung there.

"Come on!" cried Blake, increasing his speed; "we've got a chance
of saving them yet!"