Araminta's Aunt Tabby has won a Transylvanian holiday for four so she and all the adults of Spook House are going for a much-needed break but it just so happens to be Araminta's birthday, too. So who will keep an eye on Araminta and her friend Wanda? Mathilda, Araminta's 'grown up' cousin, arrives to babysit, along with two rowdy teenage ghosts. At first, Araminta and Wanda are in heaven - staying up late, playing loud music, and ordering take aways - no more of Aunt Tabby's rules! But they soon find themselves cleaning up after everyone else; being home alone isn't turning out as they'd hoped. So Araminta and Wanda come up with a plan. They have to find a way to move their unreliable ghost-sitters to another house. Maybe then Araminta can start to have a proper birthday.