THE FALSE EXIT ============== The corridor appears to lead outside. A push bar is mounted in a wall of concrete. Beyond the narrow window is the Garage, but not tonight's Garage. The workbench is new. The fluorescent tubes are different. A small black and-white television sits where the terminal should be. Through the big door, Lake Koshkonong is a flat field. The view is not a recording. Dust drifts past the window from the wrong direction. The exit is a route through the network, not a way back upstairs.