Man that is an awesome book could not put it down. It os about a teenage girl who's brother gets possessed by magic and has to perform a changeover from human to wich to save him!!!!
The Changeover: A Supernatural Romance (M Books)
By Margaret Mahy
Margaret Mahy, winner of the 1982 Carnegie Medal for "The Haunting" tells of the changeover from child to adult and from supernatural to reality. Laura alone knew that her brother Jacko was being possessed by horrifying Carmody Braque and her own latent supernatural powers might prevent it.
Publisher: HarperCollinsChildren'sBooks
ISBN-13: 9780007243525
ISBN-10: 0007243529
Published on 2/5/2007
Binding: Paperback
Number of pages: 288