Andy denied this and denied having anything to do with the mysterious fire, and, as there was no way to prove him guilty, Tom could not proceed against him. So the matter was dropped.
Mr. Swift continued to improve, and was soon himself again, and able to resume his inventive work. Tom received several offers to give exhibition flights at big aero meets, but refused, as he was busy on his new rifle. Mr. Damon helped him.
Andy Foger made several successful flights in his queer aeroplane, which turned out to be the product of a German genius who was supplied with money by Mr. Foger. Andy became very proud, and boasted that he and the German were going abroad to give flights in Europe.
"I'd be glad if he would," said Tom, when he heard of the plan. "He wouldn't bother me then."
With the money received from winning the big race, and from his contracts from the Government, Tom Swift was now in a fair way to become quite wealthy. He was destined to have many more adventures; yet, come what might, never would he forget the thrilling happenings that fell to his lot while flying for the ten-thousand dollar prize in his sky racer.