On November 25, 1970, the world renowned Japanese writer Yukio Mishima committed seppuku with his own antique sword. Mishima's spectacular suicide has been called many things: a hankering for heroism; a beautiful, perverse drama; a political protest against Japan's emasculated postwar constitution; the epitaph of a mad genius. Part travelogue, part biography, and part philosophical treatise, Mishima's Sword is the story of Christopher Ross's journey to find a sword and maybe an understanding of Mishima's country. The cold trail the author follows inspires a tale of the most...