"It's glorious; glorious!" she cried. "I'm not a bit afraid now!"

"I knew you wouldn't be," declared the young inventor, who had calculated on the fascination which the motion through the air, untrammeled and free, always produces. "Shall we go higher?"

"Yes!" cried Miss Nestor, and she gazed fearlessly down at the earth, which was falling away from beneath their feet. She was in the grip of the air, and it was a new and wonderful sensation.

Tom went up to a considerable distance, for, once a person loses his first fright, one hundred feet or one thousand feet elevation makes little difference to him. It was this way with Miss Nestor.

Now, indeed, could Tom demonstrate to her some of the fine points of navigation in the upper currents, and though he did no risky "stunts," he showed the girl what it means to do an ascending spiral, how to cut corners, how to twist around in the figure eight, and do other things. Tom did not try for the great speed of which he knew his craft was capable, for he knew there was some risk with Miss Nestor aboard. But he did nearly everything else, and when he sent the Humming-Bird down he had made another convert and devotee to the royal sport of aeroplaning.

"Oh! I never would have dared believe I could do it!" exclaimed the girl, as with flushed cheeks and dancing eyes she dismounted from the seat. "Mamma and papa will never believe I did it!"

"Bring them over, and I'll take them for a flight," said Tom, with a laugh, as Mary departed.

Tom received an answer to his letter to Mr. Sharp that night.

"Andy Foger's entry blank states," wrote the balloonist, "that he is constructing his aeroplane in the village of Hampton, which is about fifty miles from your place. If there is anything further I can do for you, Tom, let me know. I will see you at the meet. Hope you win the prize."

"In Hampton, eh?" mused Tom. "So that's where Andy has been keeping himself all this while. His uncle lives there, and that's the reason for it. He wanted to keep it a secret from me, so he could use my stolen plans for his craft. But he shan't do it! I'll go to Hampton!"