Caught in the Web Book 2

Katherine's great great grandchild lives her life as a half werewolf, half vampire and only slightly human. She is human enough to look human and not have fangs or blood lust but beyond that she has all the good and bad of both sides. She learns to hone her skills when she makes a deal with the devil, or as close to the devil as she will ever see. M-ish for violence, foul language.