Alix Marrier d’Unienville was born on 8 May 1918 in Mauritius. Her parents, wealthy French aristocrats, moved back to France, to a chateau near Vannes, when she was six.
In 1940, with her dual French and British citizenship, Alix escaped to Britain where she wrote propaganda leaflets in the Free French headquarters at Carlton Gardens, London.
Recruited by the SOE, Alix began her training in June 1943. On 31 March 1944, she parachuted into Loir-et-Cher from a Halifax aircraft with millions of francs to distribute to the Resistance.
Under the alias of Aline Bavelan, her cover story stated that she was born on the island of Réunion in 1922 (the SOE making her four years younger), moved to France in 1938 to study and now was the wife of a prisoner-of-war. Clandestinely, her main mission in France was to organise messages for the Free French in Paris.
Alix worked in Paris under the code names Myrtil and Marie-France. She was successful until 6 June 1944 when the Gestapo arrested her in Paris. At Avenue Foch, where she was interrogated, the Gestapo found her cyanide pill.
Held in Fresnes Prison, in solitary confinement, Alix pretended to be mentally ill in the hope that the Gestapo would transfer her to Saint-Anne hospital. However, instead they transferred her to La Pitié a place known for its brutal atrocities. There, she continued her pretence, drawing inspiration from a family servant who had suffered from psychological problems. The secret, Alix reasoned, was never to look people in the eyes.
Transferred again, to a prison camp at Romainville, Alix plotted her escape with another prisoner, Annie Hervé. Their plan was to escape over the prison walls using a rope made from black curtains. Alix abandoned her plan when the Gestapo deported Annie Hervé to Germany.
Throughout her time in captivity, the Gestapo were deeply suspicious of Alix. Indeed, all the clues pointed to her being an agent, yet they never put all the pieces together. Although she existed in squalid conditions on merge rations, she remained physically and mentally strong, strong enough to continually outwit her enemy.
On 15 August 1944, with the Allies approaching, Alix was in the last convoy travelling from Romainville to Germany when she reached Marne. There, the Allies had destroyed the railway bridge, so the Gestapo ordered the prisoners to cross a road bridge.
In the town square, the prisoners spied a fountain. They ran towards the fountain to drink while the guards ran after them to haul them back. Sensing her opportunity, Alix escaped. At first, she entered a house. The occupants were sympathetic and offered her temporary shelter. Later, she hid in a meadow and after that with a woodcutter and his family before the advancing Americans liberated her. Free, she returned in a jeep to Paris.
After the war, Alix was employed as a war correspondent for US forces in south-east Asia. Then she worked as an air hostess for Air France. Putting her dramatic life experiences to good use, she became an accomplished writer of fiction and nonfiction producing several quality books.
In keeping with many of the female SOE agents who survived the war, Alix lived into her nineties. She died in Paris on 10 November 2015, aged 97.