The Considine Affair. Chateau Sarony, #3

Horrified, Anna could only watch as the thieves, having accomplished their mission, turned back to retrace their steps and found the blonde American in their path. One of them ran at her, swinging his arm to one side with the clear intention of catching her in the face to knock her out of the way. She ducked and, spinning to her left, landed a side-footed stamp with her right leg to the outside of his knee.
The leg buckled at an alarming angle and with a howl of pain, her attacker crashed to the pavement. A quiet lunch in Dijon took an unexpected turn as Anna and Martin accompanied their American friends to the nearest large town. It was an unpleasant interruption to their research into an intelligence leak that could have compromised the success of the D-Day landings in 1944. The source of the leak had never been identified.
This third Chateau Sarony mystery involves Anna and Martin Price in an investigation that provides a startling conclusion.