The Thief by J.R. Ward

New enemies rise from the shadows in the next novel of the New York Times bestselling paranormal romance series the Black Dagger Brotherhood.

Having allied themselves with the Band of Bastards, the Brotherhood is committed now more than ever to eradicating the Lessening Society. Recovering from their most recent battle against the last of the lessers, the Brotherhood comes to realize that the fight against their enemies is far from over.