Little Boy is just trying to go to sleep when a Little Monster creeps up to his window and says "Goop-zee-googy!" That's "peek-a-boo," in case you don't speak Monster. While at first scared, the Little Boy starts to learn Little Monster's language, and even comes to his rescue when he gets hurt. In the cartoons here, Mike Lowery's three-eyed creature is endearing rather than scary, and a glossary will help readers 4 to 7 to learn the comical lingo.