St John wrote the apocalyptic Book of Revelation over 1900 years ago in a cave on Greece s eastern Aegean island of Patmos. When a revered monk from that holy island s thousand-year-old monastery is murdered in Patmos s town square during Easter Week, Chief Inspector Andreas Kaldis is called upon to find the killer.

Andreas s impolitic search for answers brings him face-to-face with a scandal haunting the world s oldest surviving monastic community. On the pristine Aegean peninsula of Mount Athos, isolated from the rest of humanity, twenty monasteries sit protecting the secrets of Byzantium amid a way of life virtually unchanged for more than 1500 years. But today this sacred refuge harbours modern international intrigues that threaten to destroy the very heart of the Church…in a matter of days.