The video feed came from an aerostat’s camera. The tunnel was dimly lit by red lights, the large screen flickering with more noise than usual. Still, the detail was good enough. A tall, athletic-looking Japanese woman in black stealth gear moved along a circular corridor. Her heart-shaped face was covered with dirt and sweat, while long black hair was tied back in a severe knot. She wore a police-grade visor and carried a riot gun tucked into her shoulder. The way she moved, with small, quiet steps, suggested military training.