Such bold-faced aplomb would be deployed time and time again in dealing with the Nazis. When working for SEO (Special Operations Executive, the secret wartime sabotage unit) in the Alps, where she trekked between the French and Italian sides and transmitted vital information about enemy activity, Christine was stopped by the German frontier patrol. In her hand she held a silk map of the region, given to agents to avoid the giveaway rustle of paper in pockets. With no hope of concealing it, she casually shook the fabric out and used it to replace the headscarf she was wearing, greeting the soldiers in French as if she were simply a local on an errand. Another time she and Andrzej Kowerski, her on-off lover and frequent partner in crime, were arrested and interrogated by Gestapo officers in Budapest. Christine had been suffering from flu, so she exaggerated her hacking cough and bit her tongue so hard that she appeared to be bringing up blood. Presumed to be infected with tuberculosis—potentially fatal and frighteningly infectious—she and Kowerski were released.