About the book: 2000 / Nikita Ivashov, who served as a junior police lieutenant in the recent past... still serves as a detective commander under Tsar Gorokha. And here is a new case, which he is investigating he must not lose the authority of a great opera. So, the drawings of a flying ship were stolen from King Pea from a secret chest. All the threads of the investigation are being torn by a skillful and cruel hand. The boyars gloat and form alternative search and capture commissions. Nikita and his employees - expert Baba Yaga and kind but dull assistant Mitka - will have to carry out difficult and dangerous search activities to find the thieves of the drawings and defend the honor of the police uniform…