Falling Light (The Falling Light Saga Book 1) by Dayana Morency

In the quiet town of Mercy where saints are worshiped and angels are only stories, Rosalynn Young never believed in either—until she meets Victor. Victor is a Grigori: ancient, ruthless, and he despises everything human. Yet, against every law of heaven and hatred, he is drawn to her. And she, knowing the darkness in him, is equally drawn to him. But when a millennia-old Grigori sets his sights on Rose, Victor will do anything to protect her...even if it means becoming the monster she fears.Love will demand a price. Fate offers only two roads. Will Rose choose Life or Death?