 In November 1942 Marsac was travelling on a train from Marseille to Paris carrying a briefcase containing a list prepared by Girard of 200 potential resistance fighters, with full descriptions of their identity and locations.His briefcase was stolen by an agent of the Abwehr while he dozed off, and the CARTE network was fatally weakened.Marsac was arrested in Paris by German intelligence officer ‘Colonel Henri’ Hugo Bleicher who put him in Fresnes prison, where he convinced Marsac that he was an anti-Nazi German officer and could help release him, but this would require the help of a fellow agent.