The bonds of the Secret Circle are weakening. Cassie's evil half sister won't rest until she has taken Cassie's place in the powerful ring of witches. And a band of witch-hunters is targeting the group, determined to destroy them. Will the circle remain intact?
From the Back Cover
There's no turning back. . . . For Cassie and her Circle of witches, it's hard to imagine life in New Salem getting any worse. A band of powerful witch hunters is targeting the group, determined to destroy them one by one. And Cassie's half sister, Scarlett, won't rest until she has a spot in the Circle--even if she has to kill Cassie to get it. Cassie fights against the darkness inside her as the threats against the Circle grow. But once evil is let in, she may never escape. . . .