William Le Queux was a successful author of more than a hundred books, most of them in the genre of 'invasion literature', focusing on spies, intrigue, and new technologies. Written in the middle of The Great War, The Zeppelin Destroyer tells the story of British aviators trying to battle sophisticated German zeppelins making nightly bombing raids in Southern England and Wales. Teddy, Claude, and Claude's fiance, Roseye are bent on developing a new weapon capable of stopping these powerful invaders, but all the while, they must contend with 'The Invisible Hand', a network of German spies and sympathizers in Britain who will stoop to anything to destroy the weapon and steal its secrets.