The Secret Servant — Daniel Silva

While in Amsterdam, Israeli intelligence officer and master art restorer Gabriel Allon discovers a plot that is about to explode in the middle of London. The daughter of the American ambassador is to be brutally kidnapped. But Gabriel arrives too late to save her. And when he reveals his face to the plot's masterminds, his fate is sealed as well.

Drawn once more into the service of American intelligence, Gabriel desperately searches for the missing woman as the clock ticks steadily toward the hour of her execution. The search will thrust him into an unlikely alliance with a man who has lost everything because of his devotion to Islam. It will cause him to question the morality of the tactics of his trade. And it might very well cost him his life....