Frank Pagan 4. When a bomb detonates in the London Underground, killing dozens of people, Scotland Yard asks counter-terrorism expert Frank Pagan to come back from leave. With none of the usual suspects claiming responsibility, Pagan has a hunch that Carlotta, the world’s deadliest female terrorist, is responsible. Then a US embassy employee goes missing, and Frank’s investigation takes a new direction. Was the presumed terrorist bombing actually an assassination attempt? Now Pagan is up against a shadowy group known as the Undertakers as he tries to untangle a lethal web of deceit involving a philanthropist leading a double life that includes a mysterious woman, deadly KGB agents, a semiretired member of the East German Stasi, and the US ambassador himself.