They wanted more proof that he was a German agent. When the two MI9 agents met with Boulain/Desoubrie on May 7, Dumon observed the meeting from a distance and then followed Boulain. He detected her following him and realized that he was under suspicion as a German agent. He moved toward her and she ran, finding her way into a metro station and watching as he searched the station for her. As Boulain knew her identity, she realized the Gestapo would also soon know. She left for southwestern France the next day and Elvire de Greef arranged a quick exit over the border to Spain. From Spain the British flew her to England. The story has another chapter. In 1945, after the war had ended, an American intelligence officer called Dumon to his office to look at several photographs of a man. Dumon identified the man in the photos as Pierre Boulain/Jean Masson/Jacques Desoubrie. The intelligence officer told her that Desoubrie was working for the Americans at Nuremberg. Desoubrie was subsequently captured and executed in 1949. Dumon arrived in England on June 22, 1944. She began training with MI9 for returning to Belgium as an undercover operative, but Belgium was liberated before she was to be parachuted into the country. In England, she met her future husband Pierre Ugeux, a paratrooper and French Major in the Special Operations Executive (SOE). Ugeux, as an SOE employee, was familiar with her work in the Resistance. They married in 1945 and after the war moved to France. The couple had four children: Nicole, Brigitte, Guy, and Stefan. He was later highly active in motorsports. Ugeux died in 2009