Lost Testament :

While travelling in central Turkey, Joe Grafton stumbles upon some ancient scrolls that contain a secret so devastating it could shake the foundations of the modern world. Soon he and the beautiful Turkish girl he has befriended are fighting for their lives, pursued across the country by enemies who will do anything to get their hands on the scrolls. As the net tightens and events threaten to overwhelm them, Joe is faced with a set of decisions that will test his courage and resolve to the limits. In the tradition of John Buchan and Eric Ambler, "Lost Testament" is a classic adventure story set in the momentous days when the iron curtain finally parted and the first Cold War came to an end.