This book is on pre-order until book delivery arrives. 
 
A Body Not Her Own by Eileen Farren:
 
Every generation, Eos is reborn. Every generation, she dies at his hand.

The women of Nora are dying. Hunted, for over two hundred years, by an immortal man seeking to kill the Goddess Eos and her reincarnations.

As the current reincarnation, Enid's death was predicted. Being brought back to life wasn't. Caught between the weight of her past lives and her second chance, Enid finds herself tasked with the impossible: kill the Immortal Man and end his violent hundred-year streak before countless more women are slain.

To ensure her survival, she is assigned a bodyguard—the flirty and infuriating Elven woman named Locke—to guard her on her journey and see her assignment through to the end. An ancient rage is simmering under the surface of her skin, demanding blood. Death. Vengeance. Enid only has to stay alive long enough to satiate it.