Between the Lines. Here Witchy Witchy, #7

Sometimes the past is better off dead. Determined to find a murderer, Abigail Collins must go deep undercover, cut off from all resources and communication the Paranormal Investigation Bureau provides. Under the guise of visiting an old friend, Abby must discover who is killing people and how they are tied to a local werewolf pack. With Simon by her side, enemies old and new appear, and Abigail must make a choice.
In the witchy world, not everything is black or white, and sometimes life needs a bit of gray.