A brutal murder. An ancient temple. A long-lost treasure. Buried deep under Istanbul, a secret is about to resurface with explosive consequences… Sean Ryan arrives in the ancient city to identify the body of his friend and colleague Alek Zegliwski. Alek has been savagely beheaded, his body discovered near the sacred archaeological sit of Hagia Sophia in Istanbul. Aided by British diplomat Isabel Sharp, Sean inches closer to snaring Alek’s assassin. Evil is at work and when a lethal virus is unleashed on the city panic spreads fast. Time is running out for Sean and Isabel. They must catch the killer before it’s too late. Sean and Isabel make a believable pairing, he is methodical and steadfastly refuses to walk away from the mystery surrounding his best friend’s murder while Isabel is tenacious and driven to help Sean discover the truth. Their separate strengths compliment one another and as the plot develops it’s nice to see the relationship that forms between them. You get a sense of the trust that they have in one another as they are flung from one desperate situation to another. There is also just enough backstory included for the reader to appreciate that these individuals are, in…