Torn — Dean Murray

Shape shifter Alec Graves has spent nearly a decade trying to keep his family from being drawn into open warfare with a larger pack. The new girl at school shouldn't matter, but the more he gets to know her, the more mysterious she becomes. Worse, she seems to know things she shouldn't about his shadowy world. Is she an unfortunate victim or bait designed to draw him into a fatal misstep? If she's a victim, then he's running out of time to save her. If she's bait, then his attraction to her will pull him into a fight that'll cost him everything. Torn is a complete novel in its own right, but also represents one-half of a double novel when paired with Broken. Regardless of which book you start with, the two are designed such that you can continue on to the other in order to get answers to questions not answered in the book you started with. The series continues with Splintered.