"Indeed we will!" came from Dora and Grace.

"If you catch sight of him, have him arrested!" yelled Sam, and then
the biplane sailed out of hearing.

Sam knew how to handle the Dartaway almost as well as did Dick and
Tom, and as there was but little wind, and the flying machine appeared
to be in good condition, the others did not doubt but what Sam would
make a fine flight of the trip.

"Keep a little to the south," called out Dick, after Hope had been
left behind and when they were sailing over some broad fields. "If you
do that you can follow the old turnpike for quite a distance."

"I thought I'd run for the railroad tracks," answered the lad at the
steering wheel.

"You can do that later-- after we pass that big farmhouse with the
four barns."

Running along in the air is a different proposition from running on
the ground, and the air-man has to be careful about the lay of the
land below him or he will soon go astray from his course. The earth
looks altogether different when viewed from the sky from what it does
when looked at from a level, and when an air-man is five or six
hundred feet up he has all he can do to make out what is below him.

It had begun to cloud up a little and this made it darker than ever.
After following the turn-pike for nearly two miles, Sam veered