By the most original, tactile, luminous voice in Russian prose today (Joseph Brodsky), Sleepwalker in a Fog is a collection of seven stories and a novella set in contemporary Russia. Here is Denisov, who fears his greatest accomplishment in life will be the treatise he wrote and tore up. He is betrothed to Lora, an incessant talker who dreams of having a fluffy tail. We also read of Natasha, who searches Leningrad and her memory for her lost love;...