including several women. Their German leader was a nefarious figure named Friedrich Berger, with a background in espionage and extortion, and possessed of a psychopathic capacity for cruelty.
One of the women, Madeleine Marchand, had managed to infiltrate F2 as a double agent. It was her betrayal that led to the arrest of 26 members of the network.
Catherine was the last to be captured; she was seized on the place du Trocadéro by four armed men, forced into their car, blindfolded, and driven to 180 rue de la Pompe.
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