No matter how impregnable a fortress, there's always a flaw; it's all about whether you can spot it. The closed prison, transformed from an abandoned aircraft carrier was very sturdy, but even sturdy prisons need ventilation, right? How was this problem solved? The only solution was to create ventilation openings. These openings were not on the platform but on the sides. Proving Luo Zheng's guesses right, when he saw a ventilation opening as big as a window whirling, Luo Zheng smiled, and everyone else smiled too.
The ventilation duct led inside, pumping fresh air into the prison. While it provided a route for an attack, Luo Zheng no longer wanted to attack. Too many had died already; it wasn't necessary for more to die. He immediately shouted, "Quick, bring over the sheets, suck in the thick smoke, and smoke them out."
