More corridors, more doors, more locks followed by an echoing, windowless hallway with tape crossing the floor. This had been a gymnasium, she realized—a remnant from the days when prisons detained people instead of killing them. Twin fans circled overhead, squeaking with every rotation, the sound echoing down the length of the room. Long plastic tables split the main space, each bisected by a transparent sheet of armor glass that let the visitor and victim see, but not touch, each other.