Kafka on the Shore, a tour de force of metaphysical reality, is powered by two remarkable characters: a teenage boy, Kafka Tamura, who runs away from home either to escape a gruesome oedipal prophecy or to search for his long-missing mother and sister; and an aging simpleton called Nakata, who never recovered from a wartime affliction and now is drawn toward Kafka for reasons that, like the most basic activities of daily life, he cannot fathom. Their odyssey, as mysterious to them as it is to us, is enriched throughout by vivid accomplices and mesmerizing events. Cats and people carry on...