Roland wakes on a beach at the edge of the Western Sea, injured and alone. Three doors stand upright in the sand, each opening onto a different mind in our world, at different points in time. Through them Roland draws the companions who will travel with him: Eddie Dean, a heroin addict from 1980s New York; Odetta Holmes, a woman whose split personality conceals a dangerous alter ego; and a third figure whose identity reshapes what came before. The second novel is a decisive gear change from The Gunslinger - faster, stranger, and more character-driven, it is where the series proper begins. The ka-tet takes shape here, and the emotional core of the sequence clicks into place.