Unbroken: Hide and Seek Mystery Series (Hide and Seek Mysteries #2)
Jennifer Hayden

Detective Ryan Wilshire wasn't there the night Nissa Tate was carried out of David Melvin's dark cellar. A childhood friend of her brother's, Ryan was on the outskirts of the investigation that finally brought her home to her family. When his feelings for Nissa become too intense, Ryan walks away from her, knowing she most likely will never be able to return those feelings. But when her family seeks his help, he is unable to turn his back on her.
Together, Nissa and Ryan embark on a desperate journey to find the answers that will lay her nightmares to rest. Along the way, an unexpected healing begins for both of them, while at the same time, they unknowingly awaken a monster. A monster who will stop at nothing, including murder, to keep his secrets hidden.
Be sure to check out the other two books in this series - Hide and Seek (Book 1) and Collision (Book 3).