underneath every action of the other.

"Why, sure I hope Frank will discover the thieves, and recover the stuff
they've grabbed from the bank; also that he'll have the good luck to get
back my biplane without its being badly wrecked. That reward is worth
trying for, and I don't go back on my word."

All the same he knew very well that neither of the Bird boys could be
forced to ever accept one penny from his hand, no matter what good Dame
Fortune allowed them to do for him.

Andy was watching keenly when the Carberry boy walked back to his
machine, and climbed into the steering seat. Frank, happening to look
that way, saw his cousin's face lighted up as if in glee: and he even
heard him chuckle. Perhaps Percy may have caught the same sound, for he
turned his head after dropping down into his seat, and scowled darkly at
Andy. There is nothing like a guilty conscience to bring about a
self-betrayal; and somehow Percy seemed to know what the Bird boy was
thinking about just then.

At any rate, he was an adept at the pilot wheel of a car, though
inclined to be a reckless driver; just as he was also a daring air
voyager, taking desperate chances that promised to bring him to grief
one of these days.

Backing the car swiftly around, he sped away. Sandy Hollingshead, who
had not once moved from his seat, or uttered a single word all the time,
turned his head to look back; and Andy thought he too scowled darkly, as
though stirred by unpleasant thoughts; but in another minute they had
vanished around the bend far along the pike, and the Chief alone was