Malevolent / (bk. 1 Shaye Archer)
(Book)

Everyone wondered about Shaye Archer's past. Including Shaye. Shaye Archer's life effectively began the night police found her in an alley, beaten and abused and with no memory of the previous fifteen years, not even her name. Nine years later, she's a licensed private investigator, with a single goal: to get answers for her clients when there aren't supposed to be any. And maybe someday, answers for herself. Emma Frederick thought her nightmare was over when she killed her abusive husband, but someone is stalking her and tormenting her with mementos from her past. With no evidence to support her claims, the police dismiss her worry as post-traumatic stress, but Shaye is convinced that someone is deliberately terrorizing Emma ... playing a cat and mouse game with only one goal in mind. To kill Emma.