This humorous children's book is about a brave hound named Guard Dog Lou. He has no idea that the outhouse he guards, or "Moonhouse" as he calls it, is a place for humans to well, you know...He sees them all in a rush to go in, but they come out completely relaxed! To him, it's a mystery he just can't seem to solve. One day, a mysterious plumber shows up. Will this man upend Lou's life? The curious hound sets out on a mission to get to the bottom of it, once and for all!