Serena, Scott McCall's twin sister moves back to Beacon Hills. Shes been in L.A since she was 13, having made a decision that everything with her mom and dad splitting up and her dad moving away. She moved with him. Now back in Beacon Hills, leaving behind her dad. When will Scott tell Serena his secret? What will happen when she finds out? What happens when she has a secret of her own that will change everything. New book, new characters and new enemys, in The Black Obsession.