times. The balloonist paid another visit to Mr. Swift, who was feeling pretty good, and who expressed his pleasure in seeing his old friend again.
"Can't you stay for a few days?" asked Tom, when Mr. Sharp was about to leave. "If you wait long enough you may be able to help me work up the clues against Andy Foger, and also witness a trial flight of the Humming-Bird."
"I'd like to stay, but I can't," was the answer. "The committee will be anxious for me to get back with my report. Good luck to you. I'll see you at the time of the race, if not before."
Tom resolved to get right to work seeking clues against his old enemy, Andy, but the next day Mr. Swift was not so well, and Tom had to remain in the house. Then followed several days, during which time it was necessary to do some important work on his craft, and so a week passed without any information having been obtained.
In the meanwhile Tom had made some cautious inquiries, but had learned nothing about Andy. He had no chance to interview Pete or Sam, the two cronies, and he did not think it wise to make a bald request for information at the Foger home.
Ned Newton could not be of any aid to his