«Ecstasy: The Shadowdwellers» by Jacquelyn Frank

At one with the darkness, the mysterious Shadowdwellers must live as far from light-loving humans as possible in order to survive. Yet one damaged human woman will tempt the man behind the Shadowdweller throne into a dangerous desire… Worlds Couldn't Keep Them Apart Among the Shadowdwellers, Trace holds power that some are willing to kill for. Without a stranger's aid, one rival would surely have succeeded, but Trace's brush with death is less surprising to him than his reaction to the beautiful, fragile human who heals him. By rights, Trace should hardly even register Ashla's existence within the realm of Shadowscape, but instead he is drawn to everything about her–her innocence, her courage, and her lush, sensual heat…After a terrifying car crash, Ashla Townsend wakes up to find that the bustling New York she knew is now eerie and desolate. Just when she's convinced she's alone, Ashla is confronted by a dark warrior who draws her deeper into a world she never knew existed. The bond between Ashla and Trace is a mystery to both, but searching for answers will mean confronting long-hidden secrets, and uncovering a threat that could destroy everything Trace holds precious…