Fade into You — M.L. Ray

To win her love he must save her life. Hovering somewhere between life and death, Gaia Sullivan is disappearing from the mortal world and entering a new plane of existence. Leaving behind a traumatized nephew, a coven of her beloved vampires, and the love of her life, Asa Thorn, Gaia descends into a new realm where her only companion is the vampire who murdered her over and over again throughout the centuries—Kabir. Having to team up with her enemy to survive and try to return to her loved ones, Gaia and Kabir find themselves up against an ancient horror, a millennia-old vampire-hybrid named Hayden, who has his own reasons for wanting them as his prisoners. In the human world, Asa and the rest of the Thorn coven are split between finding a cure for Gaia and finding her human sister who has been taken by a serial-killer vampire. When they discover the link between Hayden and the serial-killer vampire, however, they know that only if they can discover Gaia's true origins, will they ever be able to fight for her…