The story follows a young woman aviator who earns a reputation flying a powerful biplane built by a charismatic pilot and manufacturer recovering from wounds; episodic chapters depict training, daring night sorties, technological innovations such as engine silencers, social interactions at aerodromes, and an emerging mystery involving numbered clues and shadowy figures. Scenes blend aerial combat thrills, romantic tensions, and intrigue as characters test courage and skill while navigating wartime risks and personal loyalties. The prose alternates action set pieces with workshop and aerodrome life, emphasizing aviation technology and female daring.