Nerlin and Mordonna Flood have seven children, most of whom were not created in the traditional way like you or me, but were made in the cellar, using incredible mystical powers, some very shiny Jamie Oliver saucepans and a small chemistry set. The youngest child, Betty, is a normal, pretty little girl - but she’s a useless witch. Her attempts at magic often go wrong, with unexpected yet welcome results. The next-door neighbours should’ve known better than to rob a family of witches and wizards. But they did, and they’re about to find out what the Floods do to bad neighbours.