Little Monsters is a science fiction horror novel by Ray Cummings. The story follows Allen Nixon, a swamp-roving alligator fighter, who is captured by a group of monsters who plan to use him as a specimen for their own world. Nixon must fight for his survival and find a way to escape from his captors. The novel is full of suspense and action, and it explores the themes of survival, courage, and the horrors of the unknown.