The Secret Circle: The Initiation: The Initiation and The Captive Part 1 L.J. Smith
In this, the bind up of The Initiation and The Captive Part 1, is the start of Cassie's story. Forced to move from sunny California to gloomy New England, Cassie is homesick - until she forms a bond with a group of teenagers at her school. This clique rules the school - no one dare cross them - but Cassie feels a strange kinship with them, and when she is initiated into their 'secret circle' she is both terrified and thrilled to be part of a coven of witches that have controlled New Salem for hundreds of years...But then Cassie falls in love. Now she has a tough decision to make: does she walk away, or does she step over to the dark side?