Blood City Blues

From publisher blurb: The Official Series Bible for the swashbuckling dark fantasy setting. Scheming nobility, drug dealers, and secret police conspire against each other and everyone else, for control of the city. Information is presented with rules for the Pathfinder Roleplaying Game (requires the use of the Pathfinder Roleplaying Game Core Rulebook and the Pathfinder Gamemastery Guide), and is easily adaptable to the system of your choice.