It is already late at night. The night on Earth is so lively. It is completely different from the spacecraft. There is a light breeze next to your ears. The low chirping of animals comes from the jungle. Although the night sky in the sky is not as clear and bright as in the space, the starry sky accompanied by the bright moon gives people an indescribable peace. ∑,

Standing on the rooftop on the third floor, Su Yichen looked into the distance and took a deep breath of the moist soil and fragrant grass. Behind him, Luo Yan walked gently, as if she knew she had come to her side. Su Yichen raised his right hand and naturally held her left hand.

"I'm still thinking about what Xiao Hu said just now?" Luo Yan leaned against Su Yichen and asked.

"Yes...not..." Su Yichen shook his head, seeing Luo Yan seemingly confused, he said: "Ivan's inference seems absurd, but theoretically it is valid, but don't you think this is actually contradictory? If the Gaias are warning, why do they do this? What are the benefits of doing this?"

"Yes, but did Xiao Hu say that too. This is just a guess and an unconfirmed guess." Although Luo Yan also had some doubts about the source of this warning, she did not attach as much importance to Su Yichen. After all, more than 200 years have passed since the end of the second war between the Earth Civilization and the Gaia Civilization, and they have just returned to Earth, so they don't want Su Yichen to be entangled.

In fact, Su Yichen was not only considering this guess, but also thinking about another guess. However, the other guess was even more incredible than the previous guess. Because at this time, Su Yichen thought of a person, a person who had disappeared and had no idea whereabouts. Perhaps many people had forgotten this person, but he still remembered it.

This person is no other person, but Raymond Anthony, who went to Pluto in pursuit of immortality.

Raymond Anthony spent a lot of money and used his influence to build the Hades spacecraft to Pluto. However, because Su Yichen and his team took the lead, the Hades spacecraft's plan to obtain the Pluto base was shattered, and later encountered the Gaia civilization's spacecraft. Except for one person who escaped, all of the Hades spacecraft, including Raymond Anthony, were captured by the Gaia people.

Later, Raymond Anthony defected to the Gaia civilization. According to the Gaia people captured after the interrogation of the war, Raymond Anthony's brain was implanted into a chip and was controlled, thus rebelling against the earth's civilization. Moreover, because of his status and identity, he played a very disgraceful role in the Gaia civilization's war invasion of the earth.

But later, just as the war was about to end, or the situation suddenly changed due to the activation of the system of the Earth's base, Raymond Anthony, who had a keen sense of smell, hijacked the spaceship of the Gaia civilization, fled from the earth, and even escaped from the solar system. Then, these people had nowhere to go, and no one knew where they went, and as time went by, they were gradually forgotten by people.

Su Yichen thought of another possibility, that is, was this warning issued by Raymond Anthony to the earth? After all, what he did at the time was equivalent to betraying the earth's civilization, but due to the pressure and brain chip control, it is understandable in some aspects. Moreover, in the face of the powerful cosmic civilization, although Raymond Anthony became the agent of the Gaia civilization at that time, he personally was also the only way to save the earth's civilization. Then in the face of such a situation, no one can determine whether Raymond Anthony, who had dealt with the Gaia civilization, knew the content of the general principles of cosmic civilization.

Maybe this is a possibility, but there is still a big problem with such feasibility, that is, the escape of Raymond. Anthony is unlikely to know the actions taken by the Gaia civilization later. As a person under control who escaped from the Gaia civilization, including the solar system, he could not affect the military decisions of the Gaia civilization.

This guess is more illogical than Ivan's guess. Su Yichen just thought of the possibility of Raymond Anthony. After careful analysis, he quickly denied the guess.

"Yes, an unproven guess is a headache to think too much. Forget it, don't think about it anymore." Su Yichen shook his head and smiled. It was getting late. Although the wind outside was cool and pleasant, it was easy to feel uncomfortable after the cool breeze was blown for a long time. He gently held Luo Yan's hand and said something in her ear. Luo Yan's face suddenly turned red. He went back to the room, and soon the lights in the room were turned off...

Back to Earth, Su Yichen and his team had a lot of things and work. They not only had to hand over some of the sorted data to the Federal Academy of Sciences, but also had to meet with people from many aspects, including scientists, officials and soldiers... Of course, these tasks are necessary and necessary. More importantly, the spacecraft they took when they returned to Earth, which represents the highest technology spacecraft in the Rand civilization in the Milky Way universe civilization. Although the spacecraft lacked the most important database and intelligent brain, this spacecraft alone is a huge treasure house, and its importance can even be compared with the base of the earth.

By the way, when it comes to the Earth base, we have to mention the development of Earth civilization in these 400 years. In these 400 years, the Earth base system has awakened twice from a dormant state. It is these two awakenings that have enabled Earth civilization to obtain scientific and technological information from a first-level cosmic civilization to a second-level cosmic civilization. Moreover, during these two awakenings, the assistance of Blue Star civilization has also brought great help to Earth civilization. Although in some sense, Blue Star civilization needs each to do this, and the other party does not understand the true inside story of Earth base. Since the only Blue Star people who understand the situation of Earth base are Tang Le, the true owner of Earth base and the highest secret of the base is still in the Earth people. But even this has gained great benefits to Blue Star civilization and laid the foundation for them to become a medium-level cosmic civilization.

Now, the Earth civilization not only has the Pluto base and the Earth Base, the two legacy bases of Rand civilizations, but also has the Home Spaceship, a powerful spacecraft representing Rand civilization technology. It can be said that to a certain extent, the attack power of the Earth civilization has exceeded most universe civilizations. Even in terms of the capabilities of the Home spacecraft, even if it faces a higher cosmic civilization than the Blue Star civilization, it is still possible to fight.

But it is still a long way to go to gradually digest these technologies and truly become part of the earth's civilization. Scientific progress is not a simple one plus one. Science is a continuous accumulation, a progress from foundation to application. As mentioned before, the war weapons of modern civilization are directly handed over to a group of primitive people who have no words. Although they can teach and improve the combat effectiveness of primitive people step by step, it cannot be said that they can change primitive people into humans of modern civilization overnight.

This is the particularity of science. The senior leaders of the Earth civilization, including all scientists, are very clear about this. You have to eat at a sip and take the road step by step, but with these resources, the Earth civilization can avoid detours on the road ahead, shorten development time, and develop at a faster speed.

In the whole month after returning to Earth, Su Yichen and others hardly had a good rest and spent every day busy. They finally arranged the things they had. They refused to offer invitations or banquets, and Su Yichen took Luo Yan and the others back to the stone gate alone.

Shimen is no longer the Shimen City before, nor the Shimen when the Federal Government of Earth Civilization was first established. Today, Shimen is just another name for a region, and has also been changed to a new name in formal administrative planning. There are very few people who know the original name of this place, but in the eyes of Su Yichen and others, Shimen is still the Shimen in their hearts.

Under the leadership of the accompanying staff, they came to a scenic area, which no longer looked like it was in the past. The earliest Shimen University was destroyed in the first war of the Gaia civilization invading the earth. The old house that was later restored no longer exists. After all, more than 400 years have passed, and the red old dormitory building in their memory has long disappeared in history, and replaced by a densely growing forest.

"It's here?"

"Yes, that's it. Look, the lake you mentioned is still there. This forest was formed more than 100 years ago. According to the information, the building before was at this location." The accompanying staff was a local young man. He did not know the identity of Su Yichen and his wife. He also did not understand why they came here to find an ancient building that had disappeared for more than 100 years. However, in the face of the work assigned by his superiors, the young man still dared not neglect. Before leading Su Yichen over, he checked the detailed information and asked some old people who still remembered the old building before. After confirming, he confirmed that it was this location.

Standing on a high place and looking at the surrounding scenery, apart from the lake, there was a little bit of what I remembered, the area covered by the woods was no longer recognized. Su Yichen and Luo Yan were both feeling a little sad, and they thought of their home back then. Thinking of their days of living in school, and even more, they recalled the promise they made with Professor Wan Changchun when they left Earth.

"When we come back, we will live here, have a few more children, and then go to university to serve as a teaching position, usually grow flowers and raise grass, and when we have free time, we go fishing by the lake with Teacher Wan..."

Such agreements and promises echoed in my ears, as if they were happening in front of me, but everything in reality has changed, and I can no longer see what I used to be. Even the familiar little red building has been covered by dense woods, and the relatives and friends of that year have passed away one by one.

"There may be the wreckage of the original building in the woods. If you want to go and see it, I will accompany you to the forest to find it..." The accompanying staff was puzzled when they saw the sad look of the guest, and thought for a while and suggested softly.

"No need, let's go back." Su Yichen sighed and shook his head. So what if he saw the wreckage? The past is the past, and he can't come back again. Luo Yan understood what her husband was thinking and sighed softly. The two walked down the slope and got on the car and headed far away.

Afterwards, they went to a cemetery where they buried their familiar friends. Wan Changchun, Lin Dong, and Mr. Tian... They were buried here one by one. Because the cemetery is very high in specifications and has been managed by the departments of the Earth Federal Government, the cemetery is also well maintained.

The two stood in front of Wan Changchun's tomb, with Lin Dong's tomb on the left and Mr. Tian buried not far from the right. Although these three old friends died one after another, they still chose this place as their final destination in their lives. Perhaps in another world, they will not be lonely if they have their own company.

Putting the flowers in their hands gently in front of the tomb, Su Yichen and Luo Yan didn't say anything because what they wanted to say could no longer be described in words. And in another world, they must be able to understand what they were thinking in their hearts, standing quietly in front of the tomb for a long time, constantly recalling the little things of the past in their minds. I don't know how long it took, until the sun sets west, that the two of them bowed to the elders and friends who were sleeping here again.

After leaving the cemetery, they temporarily lived in a residence in the Shimen area, which was placed by the federal government for them. After getting out of their busy schedules, they finally returned to their rare leisure time. Although the changes in the world have changed a lot, the breath of their hometown is eternal.

In the following days, Su Yichen and Luo Yan lived like an ordinary couple. When they woke up in the morning, they would take a walk in the forest path and then fiddle with some flowers and plants in the garden. In the afternoon, they would take an hour off, and then use the intelligent brain terminal to learn about the changes and situations of some earth civilizations over the past 400 years. In the evening, the two would cook together, and then take a walk in the forest after using the meals. They would work until around 10:30 in the evening... Although such a leisurely life was boring, they enjoyed it.

Sometimes, they would also go to nearby universities to teach students. The predecessor of this university was Shimen University, but now it has changed its name. However, in the college, when they saw young students, whether Su Yichen or Luo Yan, they felt very friendly. At school, they could forget all their worries and forget their relatives and friends who had passed away. Their youthful vitality affected their mood and made them much easier.

But such days were not long. Su Yichen and Luo Yan were not ordinary people. Although Su Li's help was left behind by the Jiayuan spacecraft they came back to take, many aspects of work were inseparable from them.
Chapter completed!