A daring airport mystery sends Frank and Joe Hardy into a fast-moving case of theft, danger, and hidden identities. When the Hardy boys become involved in a baffling investigation connected to airport crime, stolen property, and suspicious strangers, they are drawn into one of their most energetic early adventures. Clues appear and vanish, suspects shift, and the young detectives must use courage, quick thinking, and persistence to uncover the truth before the mystery escapes them. First published in 1930, The Great Airport Mystery is the ninth volume in the original Hardy Boys mystery series and part of the early Stratemeyer Syndicate tradition that helped shape American juvenile detective fiction. Written under the house name Franklin W. Dixon, the book belongs to the classic run of Hardy Boys adventures that combined boys' mystery, action, travel, hidden criminals, and cliffhanger suspense for generations of readers. This edition preserves the appeal of an early series mystery built around speed, aviation, danger, and the enduring popularity of Frank and Joe Hardy. Explore other exciting Positronic Books devoted to classic science fiction, fantasy, and mystery.