• Paperback
• Condition: Very Good
• 414 pages
• Fiction: Thriller, Mystery
• Book 1/5 in the Puzzle series

Buried deep under Istanbul, a secret is about to resurface - with explosive consequences...

Sean Ryan is horrified to learn that his colleague and friend Alek 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 city to identify the body, he is handed an envelope of photographs belonging to Alek and 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 and inches closer to snaring Alek's assassin. But evil is at work in Istanbul and when a lethal virus is unleashed upon the city, panic spreads fast across Europe. Time is running out for Sean and Isabel. They must catch the killer before it's too late...