"Go back at him, Andy," advised Sam, in low voice. "Don't take any of his guff!"
"I don't intend to," spluttered Andy. "Maybe you did beat me in the races, because my motor wasn't working right," he conceded, "but you can't do it again. Anyhow, that's got nothing to do with an airship. I'll bet you can't make one!"
"I don't bet," replied Tom calmly, "but if you wait a few weeks you'll see me in an airship, and then, if you want to race the Red Streak against that, I'll accommodate you. Or, if you want to enter into a competition to build a dirigible balloon or an aeroplane I'm willing."
"Huh! Think you're smart, don't you? Just because you helped save that balloonist from being killed when his balloon caught fire," went on Andy, for want of something better to say. "But you'll never build an airship!"
"Of course he won't!" added Sam and Pete, bound to side with their crony, to whom they were indebted for many automobile and motor-boat rides.
"Just wait," advised Tom, with a tantalizing smile. "Meanwhile, if you want to try the Red Streak against the Arrow, I'm willing. I have an hour or so to spare."
"Aw, keep still!" muttered Andy, much discomfited, for the defeat of his speedy boat, by a
