“He is fairly well, but he gets a bad spell ever so often, and then to attend to business is out of the question.  But that isn’t the worst of it.  He has gotten tangled up in some sort of financial scheme with some brokers in New York City and it is worrying him half to death.  He has told me something about it, but I don’t know half as much as I’d like to know.”

“Then you must find out, Dick, and help him all you possibly can,” declared the girl, promptly.

“I’m looking for a letter from home every day—­ I mean one telling about these financial affairs.  As soon as it comes I’ll know what to do.”

All too soon the boys’ visit to Hope Seminary had to come to an end.  Sam and Tom returned to the biplane and gave the motor a brief “try-out,” which noise reached Dick’s ears just as he was trying to break away from Dora.  He gave her a last hug and a kiss and then ran to join his brothers.

“The best of friends must part, as the hook said to the eye!” sang out Tom, merrily.

“I believe you are anxious to leave us!” returned Nellie, teasingly.

“Sure thing!” he retorted, promptly.  “I planned to get away an hour before I came.”  And then she playfully boxed his ear, at which he chased her around the biplane and gave her a hearty smack just below her own pretty ear.

“Tom Rover!” she gasped.  But, somehow, she looked pleased, nevertheless.

“A11 in the family!” sang out the fun-loving Rover, coolly.  “As the lady said when she kissed her cow.”

“Who is going to run the Dartaway back?” questioned Sam.  “I think it’s my turn at the wheel.”

“It’s rather dark, Sam,” answered Dick.  “But you can try it—­ if you want to.”

“All right—­ I think I can see as much as you or Tom,” responded the youngest Rover.  “If I get off the course, and you find it out, let me know.”

Darkness was settling down when the boys finally bid the girls good-bye and flew away.  “Beware of old Crabtree!” sang out Dick.

“We’ll watch out!” answered Nellie.

“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.