Two-book set providing a detailed explanation of Japanese aviation history in the Pacific War. Titles: The Heretic Sky (Secret Records of Japanese Military Aircraft in the Pacific War) Heavy Contrails (Secret Stories of the Japanese Air Force in the Pacific War) There is some yellowing due to long-term storage. The inside is in good condition. As shown in the photos, both books have a library stamp. Please consider purchasing with the above in mind. - Author: Yoji Watanabe - Genre: Pacific War, Japanese Aviation History