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When her parents go to Africa, Holly is sent to board at the exclusive Bell Tower School where her mother was once head girl. But when she arrives, things are not as she expects. Not only is there nobody there; there is no school. While trying to sleep in the bed of the recently deceased principal, Holly hears talking in the night. It is coming from the Bell Tower. Girls who cannot be seen are plotting to have fun at the expense of others. Holly is horrified when she discovers that the main bully is not a ghost, but her own mother. How can that be, when it is so long since her mother was a student?
