Renegade Angel (Hearts of the Fallen #0.4)

It's been thousands of years since Raum's angelic wings turned from white to black, and the Destroyer of Dignities and Robber of Kings never looked back. These days he's also on the outs with Hell and works with a motley crew of ex-demons on a new mission: snuffing out lesser demons and their half-human progeny.Raum's latest assignment brings him to a small Vermont town--and a sweet, funny half-demon, half-human he'll risk everything to "save." Ember Riddick stirs him as no woman ever before--and she holds the key to what Lucifer will move Hell and Earth to prevent: his team's redemption.

But Ember's secrets are as dark as Raum's midnight wings. And their fate may leave them entwined...but destroyed....