The story of Roman Fyodorovich Ungern-Sternberg—“a Russian general, Baltic baron, Mongolian prince, and husband of a Chinese princess”—more or less writes itself. In his novella, Horsemen of the Sands, Russian writer Leonid Yuzefovich tells the story largely from the perspective of the Buryats—ethnic Mongols living in Russia—through the medium of a lost talisman.