The Secret of Hagia Sophia: The Thrilling Story of the Discovery — Anthony J. Sacco

Private Investigator Matt Dawson is enjoying a quiet breakfast at his home in Cheyenne, when a ringing landline shatters his tranquility. The Dean of the Archeology Department at Brown University, Providence, Rhode Island is calling with a job proposal that transports him to the Southern European city of Istanbul and immerses him in the four-hundred-year old deadly secret of Hagia Sophia.