He's intense. He's obsessional. He's dangerous.DCI John Luther has an extraordinary clearance rate. He commands outstanding loyalty from friends and colleagues. Nobody who ever stood at his side has a bad word to say about him. But Luther seethes with a hidden fury that at times he can barely control. Sometimes it sends him to the brink of madness, making him do things he shouldn't; things way beyond the limits of the law.The Calling, the first in a new series of novels featuring DCI John Luther, takes us into Luther's past and into his mind. It is the story of the case that tore his personal and professional relationships apart and propelled him over the precipice. Beyond fury, beyond vengeance. All the way to murder…

    Meet the next generation of covert ops.John Dempsey’s life—as an elite Tier One Navy SEAL named Jack Kemper—is over. A devastating terrorist action catapults him from a world of moral certainty and decisive orders into the shadowy realm of espionage, where ambiguity is the only rule. His new mission: hunt down those responsible for the greatest tragedy in the history of the US Special Ops and bring them to justice.But how does a man torn between duty and revenge walk the line and preserve his soul?As Dempsey struggles with the games of spies, the case propels him across the globe in a desperate effort to prevent a new, horrifying attack on American soil.Once, John Dempsey followed orders blindly. Now he sees behind the curtain, and the security of the civilized world rests on one question: Can a Tier One Navy SEAL adapt and become the world’s most lethal spy?