Amazon.com description: Product Description: When a young boy tells Don that he's seen a ghost, Don only laughs. There's no such thing as ghosts -- and the little boy probably saw a reflection. But to prove the boy wrong, Don and his friend go to the hill where the boy says that the ghost floated towards him and through a rock. Don, however, brings his shotgun just in case -- after all, it could've been a wild animal of some kind. And when they discover that it wasn't a ghost at all, but something altogether weirder, they must defend themselves from the onslaught of these White Invaders -- or face annihilation of everyone they've ever known! Ray Cummings worked as a technical writer and personal assistant to Thomas Edison. His works number close to 750 in both novel and short story format. He is considered one of the founding fathers of the science fiction pulp genre. His most famous work is The Girl in the Golden Atom.