Witch week

"The note said: SOMEONE IN THIS CLASS IS A WITCH." The story begins with a teacher's discovery of an ambiguous note and dilemma whether to take it as a joke. Many people have magical powers ("witches", male or female) but their use is a capital crime and convicted witches are burnt to death. Witch Week is set during the last four days of October 1981 at Larwood House, a boarding school in southern England, in a world parallel and close to ours. It was the third published of seven Chrestomanci books. Witch Week is a children's fantasy novel and school story by the British writer Diana Wynne Jones, published by Macmillan Children's Books in 1982.