Usagi and his friend Inspector Ishida join forces again as they embark on the traces of a mysterious book that causes many problems across the country. Our daring duo, anxious to solve the mystery and restore peace, is obliged to take unusual steps and to call upon some surprising sources to get the information they need. Will Usagi and Ishida emerge victorious or will this mystery prove too difficult to solve? This book contains a complete narrative that can be the ideal starting point for new readers who want to discover the series. "Usagi Yojimbo, the rabbit samurai of Stan Sakai makes his great return" (The Inrokuptibles) "Usagi Yojimbo, the rabbit samurai that does not age" (France Info) "Usagi Yojimbo, the US manga a bit crazy" (L'Express)