Black grooves crisscrossed the metal walls, housing iron bars and cages. They looked less like defenses meant to keep out uninvited guests and more like measures to prevent the children inside the building from escaping.
Yet, because the security system had been completely wrecked by the Black Snake, even though infrared sensors and security cameras now detected Lu Mingfei and Renata, and the alarms blared incessantly, these defensive mechanisms remained jammed in their grooves, incapable of activating.
Through the long metal corridor, Lu Mingfei and Renata reached a floor paved in solid stone. Unlike the metal-clad entrance, this hallway was dimly lit. Flanked on both sides were row upon row of locked iron doors—countless numbers of them, easily exceeding a hundred at a glance. From afar, they resembled two elongated, parallel honeycombs.
Chapter 690