world. The opening of the book introduces the enthusiastic atmosphere of the "Grande Semaine d'Aviation de Champagne," where public interest in aviation is at its peak, and competitors like Farman and Blériot are gaining fame. A group of young men, including Robert de La Tour-Miranne, Jean Outremécourt, and René de Médouville, watches the exciting events unfold, deeply engaged in discussions about the future of aerial locomotion. This leads to the formation of the "Aéro-tourist-club," where they aim to promote aerial tourism and plan a grand tour of France by airplane. This blend of camaraderie, ambition, and adventurous spirit sets the stage for the novel's exploration of aviation within the context of early 20th-century France. (This is an automatically generated summary.)