Kemal Kuray is lucky to escape with his life after his beloved F-16 hurtles to the ground in a test flight. Convalescence comes in the form of a comfortable monthly allowance and an opulent apartment in a mysterious neighborhood of Istanbul, inexplicably left to him by an acquaintance in the Air Force. But there's a price to pay. His Edgar Allen Poe-obsessed benefactor sets him on a wild goose chase from the back streets of Istanbul to the broad avenues of Buenos Aires, and finally to Poe's grave in Baltimore. But what exactly is Kemal searching for? Missing persons, yes, but there's more––he is looking for the embodiment of Poe's most famous poem, "Annabel Lee", "to love and be loved."

Fighting the Ottoman invaders in Constantinople in 1453, Emperor Constantine XI was killed, his body never found. Legend has it that he escaped in a Genoese ship, cheating certain death at the hands of the Turks and earning himself the title of Immortal Emperor. Five centuries after his disappearance, three mysterious men contact a young professor living in Istanbul. Members of a secret sect, they have guarded the Immortal Emperor's will for generations. They tell him that he is the next Byzantine emperor and that in order to take possession of his fortune he must carry out his ancestor's last wishes. The professor embarks on a dangerous journey, taking him to the heart of a mystery of epic historical significance. The Sultan of Byzantium is a symbiosis of story and history and a homage to Byzantine civilisation.

After the death of his overbearing mother, the privileged Arda reclines in his wealth, reflecting on his young life, and on the life of his father, the famous mathematician Mürsel Ergenekon, who was murdered on Arda's fourteenth birthday. While on the other side of the city 'your humble servant' Bedirhan has decided to pack in his ten-year career as an assassin. Their two lives become intrinsically bound in this remarkable thriller that takes us through the streets of Istanbul. We learn that Bedirhan in fact killed Arda's father, and that they share more in common than he or we could begin to imagine. Meanwhile, Selçuk Altun, a former family friend, is playing a deadly game, providing Arda with clues to track down his father's killer ...