Ac young British sailor, David Blake, is rescued unconscious from the beach at Le Touquet by members of the French Resistance. He never imagines the event will eventually lead to his being accepted as one of the most glamorous female impressionist entertainers in Occupied France. Nor could he anticipate the fear and exhilaration he would experience in combat against the German occupation forces. David's rescuers disguise him as a young girl to facilitate his treatment in a civilian hospital. By this means, he is hidden by the Resistance from the German SD police and the collaborationist Milice. When well enough to travel, he makes a dangerous train journey to a hideaway in the St. Denis red light district of Paris. In St. Denis he transforms into "Celine," a woman of questionable virtue, to blend with the three prostitutes who are committed to protect him. He is encouraged to fully adopt the cocoon of a lovely woman and live their life style. In this glamorous persona, the new and beautiful Celine is persuaded by the Resistance leaders to join them and to become an entertainer at Le Club Transvestie. Here he is subjected to the magnetic demands of gender dysphoria and the contentment, love and sexuality it engenders. This is enhanced by his romantic relationship with Gaby, a call-girl whose nubile body becomes his happiness, his love and his sensual anchor. Each night, he experiences the exhilarating, celebrity life of a popular night club star. His newly discovered gender gift provides him an erotic sense of satisfaction and wholeness such as he has never known; while in fierce battles with the enemy he learns about the nobility of personal courage, yet suffers the ignominy of scorn and bigotry from superiors. The Lady of l'Aigle paints a sizzling and compelling portrait of the drama, joy and moral dilemmas of a young warrior thrust into an exciting transgender role during the Occupation and Liberation of Paris during WW11.