When the admiral of the Ottoman fleet defects to the Egyptians, Yashim attempts to uncover the man's motives. But Fevzi Pasha is no stranger to Yashim: it was Pasha, in fact, who taught the investigator his craft years ago. He is the only man whom Yashim has ever truly feared: ruthless, cruel, and unswervingly loyal to the sultan. What dark secret has led his former mentor to betray the Ottoman Empire?