Because if there is one thing Raven knows about it's magic. She is used to keeping the family secret - you do get used to life being a little different when you come from a long line of witches.
So how can there be a new witch in Twinhills? One that no one in her family knows about? And why is the Howling Hag so intent on causing so much trouble?
Raven must get to the bottom of the series of cruel happenings before everyone starts to point the finger at her sister - because inexplicable things always happen around Rookery, a young witch who has to work very hard to keep her magic from spilling out.
Can this unlikely team of detectives puzzle out why the school is being targeted by unkind magic, work out who is responsible for a very nasty body in the school pond and find out who is cursing the school before things get really serious?
Or will it mean that soon everyone will discover the truth about magic and the secret of the Charming witches?