In the newest international thrill ride from New York Times-bestselling author Ridley Pearson, John Knox and Grace Chu, the incomparable and often incompatible duo, team up again, this time in the exotic city between two worlds, Istanbul. What's it like to see yourself in a picture you never knew was taken? John Knox is an expert at surveillance and delicate, international dealings. So he is understandably thrown when David Sarge Dulwich, his...