"When I was a mercenary, I went to the ruins of a research institute in the capital of a country, and dug up a piece of information there. It was a geomagnetic research report from 2020."

No one was talking around, so he continued, "Since that year, we have detected a rapid weakening of the Earth's magnetic field - do you know about magnetic fields?"

Jin Sen said, "Don't ask me, brother. I'm uneducated."

Boss Xiao stopped talking.

"The base doesn't teach these things." The poet continued: "In short, in 2030, the geomagnetic field disappeared."

Jin Sen asked honestly: "So what does the geomagnetic field do?"

"The earth is a huge magnet, and the South Pole and the North Pole are its negative poles. The geomagnetic field is everything." The poet said: "After the geomagnetic field disappears, compasses will fail, the global biosphere will be in chaos, human industry will all stop, and it will be impossible to generate electricity. However, this is the lightest consequence of the disappearance of the geomagnetic field."

"The geomagnetic field... its most important function is to protect the earth. The earth is suspended in the universe, surrounded by cosmic rays and solar winds, but when these things encounter the geomagnetic field, they will be deflected in other directions and will harm surface creatures. So in 2030, after the geomagnetic field disappears, the entire earth will directly face the attack of solar storms and cosmic rays. The radiation outside is too strong, most of the land is directly lifted up by the storm, the water disappears, and the atmosphere becomes thinner. Drought, skin diseases, cancer... half of the people on earth died, this is the 'desert age'."

Jin Sen: "Oh my god."

"But the desert age ended very quickly." The poet laughed and continued, "Since the discovery of geomagnetic changes in 2020, humans have proposed countermeasures, divided into Plan A and Plan B. I went through a lot of information in the wasteland to find it."

Jin Sen's voice has become respectful: "You say." "

Plan A, at two special locations in the Asian continent and North America, build huge magnetic field generators, one called the 'Eastern Magnetic Pole' and the other called the 'Western Magnetic Pole'. The two magnetic field generators in the east and west replace the north and south poles of the earth, resonate with the charged particles in the solar wind, and form a new magnetic field that covers the world."

Jin Sen clapped his hands a few times: "Awesome."

"Plan B is to build a large underground city and shift the focus of human life from the surface to underground to protect it from radiation and solar wind."

Jin Sen continued to applaud: "Good."

"In 2040, Plan B is successful and the underground city is open to living."

"In 2043, Plan A is successful, weak magnetic fields cover the world, the climate is no longer bad, and organisms no longer die from cosmic radiation. Human technology begins to recover, and the period from 2040 to 2043 is called the 'Age of Dawn.'"

Speaking of this, the poet sighed softly: "However, the most difficult time for mankind has just begun."

An Zhe widened his eyes.

"I know," Jin Sen said at this time, "The era of great disasters has come."

"Well," the poet said, "cosmic radiation brought unknown genetic mutations, which mutated into very scary things."

"At first, it was super bacteria, fungi, and viruses. They reproduced in human cities and infected everyone indiscriminately. The cities were full of corpses. People who have been to the wild ruins know this."

An Zhe asked, "How do you survive?"

"Survival is destiny." The poet said, "Your genes have immunity to these bacteria, so you can survive. If you don't, you will die. The ones left in the end are all those who are immune enough. In the end, of the three billion people who survived the Desert Age on Earth, only about 100 million remained. However, this was also the most difficult time for mankind."

An Zhe: "Then what?"

"You all know what happened next. Whether it was an unknown advance brought by cosmic radiation or a virus we detected, a comprehensive mutation of organisms occurred and the world was occupied by these things. There must be something special in them. When humans come into contact with them, they will be infected and gradually lose their human characteristics and become homosexual. They like to attack humans. Human genes are delicious to them. - War began. This is the most epic war in human history."

After taking a deep breath, the poet continued, "Humans living in scattered places cannot resist the attacks of monsters, so they began to integrate the remaining resources and build a human base. Our ID number starts with 3, which means this is the third human base. The alliance of the four bases, the Underground City Base, the Virginia Base, the North Base, and the Southeast Base, is the community of human destiny. After the base is formed, it's time to take a breath, and so begins your current life."

With this sentence, the atmosphere in the prison seemed to ease, but it dropped to freezing point again with the next sentence.

"Unfortunately, the base is not a safe place." The poet coughed a few times, and his voice gradually became lower.

"In 2073, a wave of mutant rodents broke out and the Southeast Base fell."

"In 2121, marine aliens dived and the Virginia Base fell."

"Fuck," Jin Sen suddenly interrupted: "I know why you committed the crime of incitement and malicious spreading of panic. The City Defense Office should have sealed your mouth."

"But I didn't do anything wrong." The poet smiled and said, "I just mixed in my boyfriend's mercenary team, collected information from human remains everywhere, and then sorted them out and published them, and was sentenced to life imprisonment."

Jin Sen said: "Your tongue should be cut off for life. You still have a boyfriend."

The poet laughed: "The base is so boring, why don't I have a boyfriend?"

Wang Wang talked to Jin Sen again and said, "So, the only ones still in operation now are the North Base and the Underground City Base. These two bases protect the magnetic field generator, so the auroras at the bases are brighter than those in other places. The auroras are the particle flows in the solar wind."

At this point, the poet sighed, "I know there is no connection between the two bases. After all, there is an entire Pacific Ocean between them. I said before that the most difficult time for mankind was the desert age and the great disaster age, because the most difficult time is now. Who knows what will happen in the next moment." As soon as

the words fell, the ground under their feet shook violently.

Dust fell from the ceiling of the prison and landed on An Zhe's head and body. He coughed because of the suffocation, but then a stronger vibration began to shake him.

Jin Sen stood up suddenly and shouted, "Is there an earthquake?"

"It is an earthquake." An Zhe heard the poet next door getting up from the ground. This knowledgeable man muttered something that he could not understand: "Earthquakes are transverse waves and longitudinal waves. Now it is an irregular vibration. The epicenter is very shallow-"

"--something underground!"

An Zhe understood this sentence.

"Boom!"

Suddenly, a loud noise came from deep in the corridor, accompanied by the clang of the iron door falling to the ground.

"Boom!" Another sound.

A tremor a hundred times more violent than before came, and An Zhe held on to the iron gate railing tightly to stand firm.

He heard it.

Something, a huge living thing, was pounding the floor from underground.