Eight years after the Age of Crisis, five years have passed since the Facers Conference.

A lot has happened in 5 years. Yun Tianming's brain has been sent to the detector of the Ladder Project. The probe that accelerated through the nuclear explosion along the way broke through to the speed of light at one hundredth, and on the way to accelerate, the nanowires that pulled the probe did not have any accidents, so the course did not deviate, and the probe went exactly towards its intended target.

About one or two hundred years later, the probe will directly encounter the first fleet of the Trisolaran from the Trisolar, which may be the first real contact between humans and the Trisolarans, and the Trisolarans will not miss it.

At the same time, several previously launched Jiefang copycat Zhizi have arrived at the three-body planet, and the momentum of TEO has expanded a lot at once.

If the TEO was forced by the head of state to hide in Tibet, now the two sides have entered a stalemate.

The Führer had met with Listener 1379, and it was during that meeting that the two sides decided to put an end to the fighting, and they proposed a duel over the human wall-to-face plan.

Führer: "See you again, Monitor 1379, I heard that you've been having people call you by that name?" ”

Listener 1379: "Yes, Führer. We met again, and the last time we met, I remember that I had seen the departure of the Trimaran Fleet and the great unfolding of Tomoko in a small, windowed room. ”

The Führer wanted to say something when he saw No. 1379, but the Führer stopped him: "Okay, those things are over, although we are now in different camps, there is no doubt that we will all work hard for the survival of the Trisolarans, isn't it?" ”

Monitor 1379 flashed with agreement.

The Führer therefore proposed to him: "So our struggle must stop for the time being, I am working for the survival of the Trisolarans, and you are holding me back with your people." "There are no ups and downs in his emotions, and he is undoubtedly a qualified three-body person - there are no emotions that are useless for survival.

Hearing the Führer's question, Monitor 1379 replied: "Honorable Führer, I admire you for your unscrupulous approach to the survival of the Trisolarans, but there should be morality between the universes, and if we treat the earth like this today, other civilizations will do the same to us." ”

The Führer flashed a "sneering" expression: "Don't you know the laws of the dark forest of the universe?" Survival, the finite universe, the chain of suspicion and the explosion of technology, you should know the fate of the stars we have observed. Why do we have such a weak mind? ”

Monitor 1379: "It's not cowardice, it's that I think the individual liberation of the Trisolaran will inevitably lead to a higher moral standard, and we may be able to give each other a chance." ”

"What chance?" The Führer also wanted to know what his opponent had.

Listener 1379: "The comrades on Earth are working on a wall project, and we can make an agreement with the earthlings for better survival. ”

The Führer was silent for a moment, as if to ponder what the protocol would be as if the listeners were talking about. He also knows that there are not many people who have a good impression of human beings in the Three-Body Problem now, because at present, these two civilizations can be said to be the two closest civilizations in the entire universe. Both Tomoko have arrived on the opposite planet, and the communication between the two sides is now absolutely transparent.

Looking at Monitor 1379, the Führer flashed, "What agreement?" I need to bring our experts to discuss it. ”

Monitor 1379 replied to the Führer very simply: "The agreement is very short, you can use Tomoko to negotiate with you directly here." The content of the agreement is just that: the wall plan. Earthling's Facing Wall Project, as we all know, is to resist the influence of Tomoko, and select the best talents to realize those genius plans that we may not have thought of for hundreds of years. I have reached an agreement with Comrade Zhang Beihai. I hope you will reply to my request after reading this specific agreement. ”

After speaking, he gave the Fuhrer the agreement that had been negotiated with Zhang Beihai. Then, get up and leave.

After returning to his control, the Führer directly summoned two people, the Archon of Science and the Archon of the Army, who needed their opinions. In addition, a chiko is always around them for possible liaison with the ETO, and although the Führer thinks that the members of the ETO are also terrible, they need the ETO now.

"This is the agreement between Listener 1379 and us, take a look." Although the Trisolarans have been able to quickly communicate large amounts of information directly by the flicker of light, in order to show solemnity, they generally use visible carriers to carry important documents instead of communicating directly.

It is said that this is to preserve their texts.

The content of the agreement is not written in a special language like on the earth, mainly because Zhang Beihai political commissar is worried that the three-body people will not understand, so he uses a more popular language, which is more like a verbal agreement.

The general content is as follows:

First of all, tell the leader of the three-body problem, Luo Ji on our side has successfully broken the wall, so don't think about anything.

Next, let's talk about the purpose and take a stand. However, in order to show our great power and humanitarian spirit, coupled with our fiery feelings for our comrades, we decided to help the Trisolarans get out of the harsh environment.

As a responsible big country, our entire country and all the people have expressed great sympathy and admiration for the Trisolarans. Therefore, my country can responsibly say that our goal is to promote harmonious coexistence between the two sides.

Therefore, with our efforts, in the previous meeting, we have passed the bill of our country, and have become a new ethnic group in our country since the last ethnic census - the Trisolar, in order to show our position on harmonious coexistence with the Trisolaran people and seeking common ground while reserving differences.

All three-body people who join our nationality will enjoy the treatment of our country's nationals, and at the same time, out of respect for the sovereignty of the three-body problem, as well as equal exchanges between the two sides. So we're going to prove ourselves with the Facing Wall Project.

That is, to prove the strength of human beings to the Trisolarans through the Wall Project, in order to obtain equal exchanges between the two sides, win-win cooperation in cooperation, and work together to build a better universe.

The Führer and the two consuls read and looked at the agreement, and after consulting with the ETO through Tomoko, they finally agreed to what the document said.

As a sign of sincerity, the assassination and sabotage activities of the ETO on Earth were temporarily stopped, leaving only the wall-breaking plan to continue.

On the day the agreement was signed, the Trisolarans had a rare conversation with the Earth through Tomoko, and finally exchanged for a short period of 200 years. At this time, the Trisolaran's fleet is still 4.2 light-years away from the Earth, and two hundred years later, the Trisolaran probe will reach the Earth to verify the strength of the Earthlings.

On this day, the two civilizations carefully put their goodwill on the balance of survival in the universe, and no one can be sure what the outcome will be.