when was the emperor of nihon-ja published
The Emperor of Nihon-Ja. From Wikipedia, the free encyclopedia. The Emperor of Nihon-Ja is the tenth instalment in the Ranger's Apprentice book series by Australian author John Flanagan. The book was released in Australia on 1 November 2010, in New Zealand on 5 November 2010, and in the United States on 16 April 2011. The name Nihon-Ja is based on the name of Japan; Nihon-Koku.