It is Istanbul 1838 & Lefevre a French archaeologist has arrived in Istanbul determined to uncover a lost Byzantine treasure. Yashim is hired to investigate him but when the man turns up dead there is only one suspect: Yashim himself. Once again the investigator finds himself in a race against time to uncover the startling truth behind a shadowy secret society dedicated to the revival of the Byzantine Empire caught in a deadly game deep beneath the city streets a place where the stakes are high
- & betrayal is death.