The trains

The operator cannot believe it. The train system has shut down, but there it is. Crawling like a centipede on the tracks, going down pathway C. He presses some buttons, but there is no way to stop it. He looks through the cameras and sees the derelict train, starting to move. It had been decommissioned long ago. He calls his superior, who comes down, and they think it must be some pranksters, but there is no one in the front carriage driving the train. Then another series of lights begin to move on the switchboard; another old train is starting to move, and roars forth, shaking the room. It happens the next night, and the night after, and no one can explain it. Soon the operators decide to keep it quiet, and let the old trains have their way, criss crossing, tumbling, pushing down the track, the rails once again theirs.