The Witches (novel)
A young boy and his Norwegian grandmother travel to a hotel in England. The boy's grandmother tells him about witches and their hatred for children, as well as how to spot them. The boy is wandering around the hotel and soon finds himself hiding in a room full of witches. The leader of the witches, the Grand High Witch, tells them about her new potion that transforms kids into mice. The witches soon discover the boy and turn him into a mouse, as well as another boy named Bruno. The boy, now turned into a mouse, sneaks into the Grand High Witch's hotel room, steals the potion and puts it in the witches' food at dinner, turning them all into mice. The boy and his grandmother plan to go to the America to get rid of the witches there.