In late 1942 telephone transmissions between Jacob and other resistance members were intercepted by Gestapo wiretaps and led to the arrest of Jacob in
Århus. Under interrogation and torture, Jacob gave away the names of forty-four resistance fighters and a hundred Danish families working with them. Wichfeld was one of them. Despite having received rumours that the Gestapo had evidence against her and would be coming to arrest her, Wichfield refused to leave Engestofte saying "I have joined the struggle for Denmark. I am willing to pay the price." In January 1944, she was arrested at Engestofte and imprisoned in Copenhagen's
Vestre Fængsel prison where she was subjected to daily interrogation for four months. The resistance did mount a rescue plan that involved bribing a Gestapo agent to help facilitate her escape with a staged ambush, but the agent bungled the plan by getting drunk and having himself revealed. The Gestapo staged the transfer of an agent disguised as Wichfeld to try and capture the resistance ambush team that included her daughter Varinka and Flemming Muus, but the team recognized the agent as a decoy and did not attack. but was told she could beg clemency to have it commuted to a life sentence. She asked the court if the same offer extended to the other defendants, and when it was not, turned it down flatly, and then sat down and casually powdered her nose. There was outrage across the country at her sentence, as capital punishment for women had long since been considered barbaric in Denmark. The sentence was later converted into a life sentence, and because there was no penal servitude for women in Denmark, she was transferred with other women captured as part of the resistance
Hvidsten group to
Cottbus POW camp in Germany, and eventually transferred to
Waldheim Prison. She died there of pneumonia on 27 February 1945 after a long bout of tuberculosis, one month before the end of the Second World War. == Commemoration ==