A Place to Run (Trials of the Blood Book 1) by Becca Lynn Mathis

What if you learned that the things that go bump in the night are real? . . . What if you became one of them? When Lynn gets attacked by a crazed werewolf, every aspect of her entire lonely life changes. Her new pack helps her adjust to life as a werewolf, but that means living under the constant threat of vampires, their immortal enemies. Worse, Lynn learns a former friend – and vampire – is now targeting her, and the military wants to get their hands on her as well. Fearing the danger she brings to her pack, Lynn must decide whether it’s better to run from them all or to make peace with who and what she has become.