'The Samurai Kids are finally back in Japan. But not at their ryu in the Tateyama Mountains. Instead, Sensei has taken them to the snowy lands of Ezo - the place of his birth. The place where Sensei must face his demons and right the terrible wrong that has tormented him. Will Niya have the courage to help Sensei as he promised? Is Sensei really a black Tengu?' (Publication summary)