Dawn has always thought there was a secret passage hiden in her house.But she never thought there was a ghost?until now. All kinds of creepy things go on whenever dawn's at home. There are even spooky noises behind her bedroom wall! Dawn is sure there's a ghost in her house. And so are the other Baby-sitters. But they're so busy with their baby sitting jobs that they hardly have time for a ghost hunt. Will Dawn and her friends ever solve the mystery, or will Dawn have to share her house...with a ghost?