In the third year of nuclear winter, three hundred meters underground, humanity's last genetic safe is awakening.
18-Year-old Gu Lingjue and his younger sister struggled to survive in the "Ark Core" system left behind by their mother.
This underground city transformed by the black technology of the Nazis during World War II is both a shelter and a living laboratory - when they repaired the water purification system, fragments of the mother's deleted memory emerged in the ice crystals; when the mycelium network covered the ceiling, the German alarm in 1943 resonated with the screams of zombies in the ventilation pipes.
In this breathing steel tomb:
- Acid rain corrodes not only the surface of the earth, but also the hope in the eyes of survivors
- What the woman with military prosthetics brought was not reinforcements, but a fatwa for the "Lazarus Project"
- Every time you unlock an apocalyptic technology, you are one step closer to the genetic sacrifice planned by your mother.
Gu Lingjue gradually discovered that the neural interface in Yingxue's mechanical exoskeleton was not only connected to the living metal deep in the earth's mantle, but also to the consciousness of a Nazi officer seventy years ago.
And the antibodies flowing in their blood are just the last key to unlocking the human elimination plan.
When the double moon night comes:
- The creep network whispers the secret language of the Third Reich
- A copy of the brother and sister's DNA crawled out of the cryo chamber.
- The core of Ark finally issued the ultimate command: "One of the twins must die."
At this moment, Gu Lingjue's dagger was pressed against his sister's throat, and the last words of his mother's recording came from deep in the earth's crust: The one who survives is the real experimental subject.