"Dey're stoppin'!" shouted the boy; "somet'ing has gone wrong wid de odder car!"
"I knew something would happen!" shouted Matt, as he slowed his speed a little to give the Red Flier a bit of a rest.
[CHAPTER XIV.]
DOWN THE MOUNTAIN.
"Dat engine o' deirs went wrong just at de right time t' save our bacon, Matt," said Josh.
Matt tossed a look backward. The runabout was at a stop, and Brisco was on the ground, tinkering frantically.
"If he knows what to do," said Matt, "he'll be able to come on again. But he'll have more trouble; and he'll continue to have trouble until he takes time to overhaul his fuel-tank."
"What did yous do?" asked the boy.
"Mixed a handful of sand with his gasoline."