Lord of Shadows — Alix Rickloff

Who is working the demon arts ...
Was it her murdered father? Her fugitive brother? It has been seven years since Lady Sabrina Douglas cloistered herself with the Sisters of High Danu, but the questions remain. She is Other -- a mixture of Fey and mortal -- quietly using her powers to heal. That is, until she saves a half-drowned man, his soldier's body a roadmap of scars, his fathomless eyes filled with heartbreaking loneliness. The inexplicable connection overwhelms her defenses, touching her heart, mind ... and body.

... and to what end?
A man with no memory, Daigh MacLir seeks his past, even as unknown threats fill him with monstrous rage and inhuman abilities. But as a desperate game of hunter and hunted is played out from ballrooms to bedrooms, what Daigh discovers is more chilling than anyone could possibly imagine. Defying death was only the first step in the task he has been set, and Sabrina his last hope. But dare he risk involving her? Daigh has been summoned to find an ancient king, and even the powers of love may not be enough to win the battle against the powers of darkness.