The Kaisho

'Set in Japan. A 'debt of honor' has come due and Nicholas the Ninja has vowed to pay in full. Mikio Okami is the Kaisho - the boss of bosses of the Yakuza, the Japanese underworld. In his Venice headquarters, he realizes that he has been marked for death. Honor-bound to protect Okami, Linnear is prepared to make the ultimate sacrifice: a descent into a chasm of knowledge so potent, of dangers so unfathomable, that even if he survives he will emerge changed forever.'