The twelfth expedition into the mysterious Area X—a region of wilderness sealed off from the rest of the world where previous expeditions have met bizarre ends—is followed through the journal of its biologist, who remains anonymous, as the team begins to unravel and the landscape reveals itself to be something profoundly and inexplicably alive. Strange, dreamlike, and deeply unsettling, the novel defies genre convention and offers no easy resolution. The first volume of the Southern Reach trilogy.