It's not easy being the only day girl at Turlingham boarding school: Sophie misses out on all the midnight feasts and late night gossip. Things take a turn for the worse when a new girl - Katy - shows up and all Sophie hears is Katy, Katy, Katy from her friends. It's like she's put a spell on everyone. Katy's no witch, but there is a witch at Turlingham. Katy comes from a long line of witch hunters whose fate is to stop evil magic once and for all. Sophie is going to help her - anything to get Katy out of her life and get things back to normal. But what she finds out means nothing will ever be normal again! Ages 9-11.