I am Pilgrim by Terry Hayes. “A page-turner of a murder mystery cum international spy thriller. Opens with a gruesome murder: a woman found face down in a bathtub full of acid in a seedy New York hotel. The story quickly spins out to Saudi Arabia, Germany, Turkey and beyond. Not the most beautifully written novel you'll ever read, but the tension between the two key characters is well done. "Pilgrim" is an American spy; "Saracen" is his Saudi-born adversary. The interrogation scene when they finally meet, several hundred pages into the novel, will give you goosebumps.”