The deep-sea crisis has only just been sealed away when a sudden cold wave sweeps south from the north.
Beneath the frozen earth, the Eden Society's Third Experimental Zone unleashes a cold-disaster virus. Zombies begin to hibernate in low temperatures, crystallize, and revive in swarms, while even supernatural abilities are frozen into dormancy. With fuel gone, food frozen solid, and city walls failing, humanity is once again driven back to the most basic struggle to survive.
Lin Yan leads his team north in search of heat sources, traveling between icebound highways, northern steel cities, and frozen mines.
While others are driven to despair by the extreme cold, he uses scrap to build insulated shelters, snowmobiles, thermal towers, and furnaces to keep the flame alive.
This time, he will prove in the subzero wasteland that
Civilization needs more than steel. It also needs a flame that can last through the long night.
