[Machine Translation] Frequent strange incidents occur in which gunsmiths in Edo go missing one after another. When Kurama Tengu hears the story from Shokichi, a geisha in Yanagibashi, he suspects that there is a great conspiracy behind the incidents. The mysterious Genan, an old man who loves black camellias, Matsudaira Chiketsusuke, who was once a magistrate on Sado Island in Aikawa and is now a senior vice-minister, and Shimura Oribe, a chief inspector who lost his life on an inspection tour on Sado Island, all come together on a stage filled with the atmosphere of Edo. Finally, Kurama Tengu captures an unexpected prey. This is the fourth in the series of masterpieces selected by the critic Shunsuke Tsurumi from the classic historical novel "Kurama Tengu".