Assigned the role of courier for the Bricklayer circuit (network), Damerment and agents France Antelme (organiser) and Lionel Lee (wireless operator) were parachuted from a RAF special duties 161 Squadron Halifax into a field near the city of Chartres in France on the night of 28/29 February 1944. However, the Gestapo were waiting after as a result of having captured SOE wireless operators and transmitted false messages with their radios. Damerment was transported to Gestapo headquarters on the Avenue Foch in Paris, where she was interrogated. On 12 May 1944, Damerment was sent with several other captured female SOE agents to Karlsruhe Prison, the civilian prison for women, where they were held for four months.