"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 airman 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 airman 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 turnpike for nearly two miles, Sam veered slightly to catch the railroad tracks and the gleam of the signal lights.
"I can follow the lights best of all!" he shouted, into Dick's ear. "It's too dark to sec the road."
"All right, follow the railroad right to Ashton," answered the oldest Rover boy, naming the town that was the railroad station for Brill College.
The cloudiness increased rapidly, and long before Ashton was gained it commenced to blow,
