The door buzzes and clicks. There are no handles or doorknobs, so Brian steps forward and pushes and the door swings inward. He’s two or three steps beyond the doorway before he realizes that the shadowy interior is not just a lot dimmer than the sunlight outside, or that his eyes are not just taking an extra moment or two to adjust. The door slams shut behind him and he’s enveloped in pitch blackness, a dark so complete he can’t see a fragging thing.