. . . . "The Gadget"@en . "The Gadget is a young adult historical novel written by Paul Zindel published in 2001 by Random House and the final book of \"The Zone Unknown\" series. It tells the story of a 13-year-old boy named Stephen Orr, whose father is a physicist working on a covert project to develop the atomic bomb."@en . "0-440-22951-0" . . "197"^^ . . .