Tomorrow, the Killing: Low Town 2

Once he was a hero of the Great War, and then a member of the dreaded Black House. Now he is the criminal linchpin of Low Town. His name is Warden. He thought he had left the war behind him, but a summons from up above brings the past sharply, uncomfortably, back into focus. General Montgomery's daughter is missing somewhere in Low Town, searching for clues about her brother's murder. The General wants her found, before the stinking streets can lay claim to her, too. Dark, violent, and shot through with corruption, this book is a fantastic successor to a much-heralded fantasy debut.