WHEN THE KING CALLS, YOU ANSWER... In Budapest, Will Slater senses a whisper of the past. He follows the trail down neon-drenched alleys, and then it finds him. An old ally resurfaces. Jason King returns with devastating news. When Slater agrees to help get revenge, they quickly find themselves in a fight they know very little about. Because the world is changing. Technology is rapidly advancing, spiralling toward a total transformation of society. There is a new breed of terrorist—the next step in human evolution. As the truth unravels, the terror amplifies. And by the time it's over, they both find out that there is a fate far, far worse than death... Some doors should never be opened.