"What's that? What's that?" asked Uncle Ezra in surprise. He was all attention when it came to a matter of money. "What prize did you speak of?"

"Didn't you hear, Uncle Ezra?" inquired Dick. "Why, the United States government, to increase the interest in aviation, and to encourage inventors, has offered a prize of twenty thousand dollars to the first person who takes his airship from the Atlantic to the Pacific, or rather, from New York to San Francisco with but two landings. I'm going to have a try for that prize!"

"Yes, and he's going to win it, too!" cried Paul.

"And we're at least going to share in the glory of it," added Innis.

"Twenty thousand dollars!" murmured Uncle Ezra. "Is it possible?"

"Oh, it's true enough, sir," put in Mr. Vardon. "The offer has been formally made. I know several of my aviator friends who are going to have a try for it. I intended to myself, but for the accident in which my craft was smashed. Only for the kindness of your nephew in engaging me on this work I don't know what I should be doing now."

"That's all right!" interrupted Dick, who disliked praise. "I'm doing MYSELF as much a favor in having you build this airship as I am YOU. I intend to have a good time in this craft, even if I don't win the prize."

"Twenty thousand dollars," murmured Uncle Ezra again, slowly. "It's an awful lot of money—an awful lot," he added in an awed tone of voice.

The truth of the matter was that Uncle Ezra had nearly a million. But he was very "close," and never missed a chance to make more.

"And do you intend to get the government prize in that—that contraption?" he asked, motioning to the half-completed aeroplane.