Ursula. N. Owen

Something dark is awakening in the city. An ancient horror that if unleashed will spell disaster for humanity and all the non-humans of the world.
Danica Logan is a survivor but lacks direction in her life. Born without a Pack or a wolf she has survived in the city through sheer stubbornness. Now her secret double life is about to be exposed as she is thrown into not only a new pack but becomes the target of the ancient horror for her unique talent that she has yet to discover.

WARNING : this book has strong language from the start, a lot of scenes of violent or adult nature. And twists a lot of generally accepted rules. If you are of the sensitive disposition look away.