There is something ancient and terrible loose in the world of men. Something that hates them with burning passion, that bears a grudge born of ten thousand years. Something that wants its revenge. NYPD Detective Amy Sun has a problem: Three years ago, a young woman was rescued from a serial killer by a police tactical unit. Now she’s dead, and Amy has a bad feeling that the SWAT team leader is responsible. As she investigates the existence of a corrupt cabal within her own precinct, Detective Sun soon discovers that there is something else on their trail – a