A keen tennis fan, Samantha Fraser was looking forward to a great Wimbledon semi final from the comfort of her own armchair. The last thing she expected to see was her husband Paul watching from the courtside - three years after his disappearance. Completely ignorant of his dreadful predicament - he is sought by police and intelligence agencies in several countries - she renews her efforts to find him. Samantha and Paul's stories are linked with those of a forensic scientist looking to solve the mystery of her mother's death twenty years before, and an American seeking to solve a puzzle from his childhood. These separate storylines move closer together as the mystery begins to unravel. Moving from China in the 1960s across present day Europe to a thrilling resolution setting the British army against the forces of one man driven by an overpowering obsession who will let nothing and no-one stand between him and a treasure beyond price.