The Unlikely Spy by Daniel Silva was the author’s first novel and is a standalone story.
This book had a release date of December 24, 1996.
The Unlikely Spy book description
In wartime,” Winston Churchill wrote, “truth is so precious that she should always be attended by a bodyguard of lies.”
For Britain’s counterintelligence operations, this meant finding the unlikeliest agent imaginable – a history professor named Alfred Vicary, handpicked by Churchill himself to expose a highly dangerous, but unknown, traitor.
The Nazis, however, have also chosen an unlikely agent: Catherine Blake, a beautiful widow of a war hero, a hospital volunteer – and a Nazi spy under direct orders from Hitler to uncover the Allied plans for D-Day…