Whiskey and Water:

Matthew the Magi followed Jane Andraste into Faerie to rescue her half-human daughter and destroy the Fae. But when Matthew discovered Jane's treachery, he betrayed her, and the Promethean armies fell. Matthew lost his brother, his mentor, and his power. Now Jane is recruiting a new army, and Matthew, the protector of New York City, discovers a young murdered by a beast almost certainly Fae. To find the killer before Jane uses the crime to justify more war, Matthew must contend with Magi, Faerie, Angels, and untamed forces of nature - and ultimately brave the greatest Adversary of all.