Buried deep under Istanbul a secret is about to resurface with explosive consequences... Alex Zegliwski has been savagely beheaded. His body is found hidden near the sacred archaeological site of Hagia Sophia in Istanbul. When Sean arrives in the ancient city to identify his colleagues body he is handed an envelope of photographs belonging to Alek & soon finds himself in grave danger. Someone wants him dead but why? Aided by British diplomat Isabel Sharp Sean begins to unravel the mystery of the mosaics in the photographs & inch closer to snaring Aleks assassin. Evil is at work & when a lethal virus is unleashed on the city panic spreads fast. Time is running out for Sean & Isabel. They must catch the killer before its too late. An electrifying conspiracy thriller which will entice fans of Scott Mariani Sam Bourne & Dan Brown.