Although not exactly a sequel to the Flinn's Breathing Underwater, Diva focuses on Caitlin, the girlfriend of that novel's protagonist. Unfortunately, Caitlin's issues never hit the depth that Flinn's other books are known for.
Escaping an abusive relationship, Caitlin attends a local arts school, where she struggles with her insecurities as a singer as well as her dark past. But before Caitlin can grasp her future, she must learn to come to terms with her -- and her mother's -- past. (HarperTeen, Oct., 272 pp., $15.99, ISBN: 0060568437,12 & Up, HC)