Until Darkness Comes — Melynda Price

A guardian angel… A forbidden love… Eternal consequences… Olivia Norton was born with a gift -- a gift heaven has sworn to protect, and hell is bound to destroy. Her perfect world is turned upside-down when two handsome strangers, Max and Liam, step into her life. Olivia soon discovers that her 'Mr. Perfect' is actually a perfect nightmare. The rules of engagement have changed and Liam, Olivia's guardian angel, is forced to cross dimensional borders or risk losing the woman he's sworn to protect. Suddenly, thrust into a world unlike anything he's never known, Liam isn't prepared to come face to face with the young woman whose life he holds in his hands. But nothing is as it seems, and secrets abound that will ultimately force him to choose between two impossibilities. Max will stop at nothing to finish what he's started, and Olivia is soon plunged into a battle between good and evil. Her very life hangs in the balance as two forces fight to win her heart.