Following a mass betrayal of Resistance fighters by a Gestapo agent, many were murdered while Garrow was imprisoned. With the net closing in around the Resistance, in 1943 Wake made the decision to escape to Spain, with Henri staying in Marseilles to avoid suspicion – but not before helping her comrade Garrow escape prison by bribing a guard.
Having travelled the French countryside extensively during the 1930s, Wake used her knowledge of the transport networks to travel the roads and railways until the opportune moment to cross into Spain. But it was during one of these trips she was finally caught and imprisoned by the Gestapo for having fake identification.
However, unaware of who they had imprisoned, Wake was interrogated and beaten by her captors before being sprung by Patrick O’Leary, who claimed to be the man Wake was running away with – hence her fake documents. She made it to Spain, but her instinct that the net was closing tragically proved correct, as her beloved Henri was arrested on suspicion of being the husband of the White Mouse, and wasn’t as lucky in escape as his wife. He was executed by firing squad when he refused to reveal Nancy’s identity.