The text opens with a depiction of postwar France's political fever, oscillating between revolutionary impulse, parliamentary socialism, and anarchist allure, and sketches urban life in Paris and its suburbs. It then traces the upbringing and character of Germaine Berton, describing her childhood in the banlieue, close relationship with her father, work in a repair shop, voracious reading, artistic ambitions, and fierce individualism. The narrative links the social atmosphere and personal temperament to growing militancy, presenting her transformation from a spirited, nature-loving adolescent into an actor of violent political action.