"Is this Tom Swift, the inventor of several airships?" The man who had rung the bell glanced at the youth who answered his summons. "Yes, I'm Tom Swift," was the reply. "Did you wish to see me?" "I do. I'm Mr. James Gunmore, secretary of the Eagle Park Aviation Association. I had some correspondence with you about a prize contest we are going to hold. I believe-" "Oh, yes, I remember now," and the young inventor smiled pleasantly as he opened wider the door of his home. "Won't you come in? My father will be glad to see you. He is as much interested in airships as I am." And Tom led the way to the library, where the secretary of the aviation society was soon seated in a big, comfortable leather chair. "I thought we could do better, and perhaps come to some decision more quickly, if I came to see you, than if we corresponded," went on Mr. Gunmore. "I hope I haven't disturbed you at any of your inventions," and the secretary smiled at the youth.