L.A. FBI agents are up against an unstoppable cop killer in this thriller by the PEN West Award–winning author Four Kinds of Rain . Jack Harper and Oscar Hidalgo are two of the smartest, toughest FBI agents in Los Angeles. But they've met their match in diamond smuggler Karl Steinbach. Arrested during a sting operation, Steinbach tells the team of agents he will kill them all. Coming from a man who's about to go to prison, it sounds like an empty threat. Then, one by one, they start to die. Knowing they could be next, Harper and Hidalgo are out to stop a man they already have behind bars. It's an impossible situation that only gets worse when Steinbach makes a deal with Homeland Security and is freed with total immunity. But as their investigation reveals shocking secrets within the bureau, Harper and Hidalgo realize that Steinbach is the least of their worries.