If you've ever owned a sailboat or had a friend who did, you know how it begins: with a dream. You dream about the ship, and gradually the dream consumes you. Practical considerations lose all meaning ... until, inevitably, the dream morphs into a nightmare. David Vann is familiar with that nightmare. His begins in Turkey: a thirty-year-old tourist, he stumbles across the steel frame of a ninety-foot sailboat that cries out to be built. From friends,...