Deep Space Backside

Eleven points and seven kilometers underground on the moon, humans discovered a black structure whose interior cannot be detected. The neutrino disappears completely after passing through it, and the material sent into it cannot return, and there is a countdown of unknown origin, with only seventy-two hours left. Gu Yuan and the first group of advance personnel passed through the Black Gate and arrived at a gray ruin that was beyond human cognition. There is atmosphere, gravity, and buildings far beyond the scale of the earth, but there is no confirmed life and no return. What is even more dangerous is that pollution has entered the body of every living person. Some people's actions precede their consciousness, some people's senses begin to deviate from reality, and some people's bodies will still complete instructions that were left unfinished during life after death. Medicine, time and space that humans are familiar with are losing credibility one by one. Later, they gradually understood that the Gray City was just a tiny corner of the world. And in order to survive, they must do more than just understand the world—— We must also decide what counts as alive and what still counts as human beings when humanity itself begins to change.