The night is already deep, the night of the earth is so full of life, it is completely different from in a spaceship, there is a light breeze in the ears, there is a faint whisper of animals in the jungle, although the night sky in the sky is not as clear and bright as in space, but the starry sky with the bright moon gives people an indescribable peace.

Standing on the rooftop of the third floor, Su Yichen looked into the distance, breathing deeply the smell of moist earth and fragrant grass. And behind him, Luo Yan walked softly, as if knowing that she had come to his side, Su Yichen raised his right hand and naturally held her left hand.

"Still thinking about what Xiao Hu just said?" Luo Yan leaned lightly to Su Yichen's side and asked.

"Yes...... Nor is it ....... Su Yichen shook his head, seeing that Luo Yan seemed a little puzzled, he said: "Ivan's inference seems ridiculous, but theoretically speaking, it is true, but don't you think this is actually contradictory?" If it was the Gaians who gave the warning, then why did they do it? What's in it for them? ”

"Yes, but didn't Xiaohu also say it, this is just a guess, and it is also an unconfirmed guess." Although Luo Yan also had some doubts about the source of this warning, she didn't attach as much importance to it as Su Yichen, after all, more than 200 years had passed since the end of the war between the Second Earth Civilization and the Gaia Civilization, and they had just returned to Earth, so they didn't want Su Yichen to worry about it.

In fact, in Su Yichen's heart, he was not only thinking about this guess, but also pondering another guess. But the other guess is even more incredible than the previous one. Because at this time, Su Yichen thought of a person, a person who had disappeared and didn't know his whereabouts at all, and this person may have been forgotten by many people, but he still remembered.

This person was none other than the famous rich man back then. Raymond who traveled to Pluto in pursuit of eternal life. Anthony.

Raymond of the year. Anthony spent a lot of money and used his influence to build the Hades spacecraft by the U.S. government to Pluto. But because of Su Yichen's early arrival, the Hades spaceship's plan to obtain the Pluto base was shattered, and later encountered the spaceship of the Gaia civilization. All of them, including Antony, were captured by the Gaians.

Subsequently. Ramon. Anthony took refuge in the Gaian civilization, and according to the interrogation of the Gaians captured after the war, Raymond. Anthony's brain was controlled by a microchip, which betrayed the Earth civilization, and because of the particularity of his status and identity, he played a very disgraceful role in the Gaia civilization's invasion of the Earth.

But later, just when the war was about to end, or the situation of the war suddenly changed due to the activation of the system of the earth base, Raymond with a keen sense of smell. Anthony escaped from Earth with his subordinates who hijacked the spaceship of the Gaia civilization. and even escaped from the solar system. After that, these people were never accounted for, no one knew where they went, and over time, they were gradually forgotten.

Su Yichen thought of another possibility, that is, whether this warning was Raymond. What about Anthony sent to Earth? After all, what he did at the beginning was tantamount to betraying the earth's civilization, but because of the persecution and brain chip control, it is understandable in some ways. What's more, in the face of a powerful cosmic civilization, Raymond. Antony though became an agent of the Gaian civilization at that time. But personally, it is also the only way to save the civilization of the earth. Later, in the face of such a situation, Raymond, who had dealt with the Gaian civilization. Whether Anthony knows the contents of the universal rules of civilization in the universe is anyone's guess.

Maybe it's a possibility, but there is still a big problem with such a feasibility, and that is the escape of Raymond. It is unlikely that Anthony knew about the actions made by the Gaian civilization later, but as a controlled. It is impossible for anyone who has fled the Gaian civilization, including the solar system, to influence the military decisions of the Gaian civilization.

This speculation is even more illogical than Ivan's. Anthony's possibility, Su Yichen just thought of it naturally, and after careful analysis, he quickly denied this speculation.

"yes, an unverifiable guess. It's nerve-wracking to think about it, forget it, don't think about it. Su Yichen shook his head and smiled, the time was not early, although the wind outside was cool and pleasant, but the cool breeze was easy to feel uncomfortable after a long time, he held Luo Yan's hand lightly, and said something in her ear, Luo Yan's face suddenly turned slightly red, and she went back to the room, and soon the lights in the room went out.......

Back on Earth, Su Yichen has a lot of things to do and a lot of work, not only do they have to hand over some of the materials they have sorted out to the Federal Academy of Sciences, but they also have to meet with people from many aspects, including scientists, officials and military ....... Of course, all these jobs are necessary and necessary. What's more important is the Homeland spaceship they took when they returned to Earth, this represents the most high-tech spaceship that the Rand civilization has ever been in the galaxy universe civilization, although the spaceship lacks the most important database and brain, but this spaceship alone is a huge treasure trove, and its importance can even be compared to the Earth base.

By the way, when it comes to the earth base, we have to mention the development of the earth civilization in the past 400 years. In the past 400 years, the Earth-based system has awakened from dormancy twice, and it is these two awakenings that have enabled the Earth civilization to obtain scientific and technological information that has crossed from the first-level cosmic civilization to the second-level cosmic civilization. And in these two awakenings, the assistance of the Blue Star Civilization has also brought great help to the Earth Civilization, although in some sense, the Blue Star Civilization has its own needs, and the other party does not know the real inside story of the Earth Base, because the only Blue Star people who know the situation of the Earth Base are Tang Le, so the real owner of the Earth Base and the top secret of the base are still in the hands of the Earth people, but even this has given the Blue Star Civilization great benefits and laid the foundation for them to become a medium cosmic civilization.

Now, the earth civilization not only has the Pluto base and the earth base, the two legacy bases of the Rand civilization, but also has the homeland spaceship, a powerful spaceship that represents the technology of the rand civilization, it can be said that to a certain extent, the attack power of the earth civilization has exceeded that of the vast majority of the cosmic civilization, and even in terms of the ability of the Homeland spaceship, even in the face of a cosmic civilization higher than the blue star civilization, it can still fight.

However, there is still a long way to go to gradually digest these technologies and truly become a part of the earth's civilization. Scientific progress is not simply one plus one, science is a continuous accumulation. It is a progress from the foundation to the application. As I said before, handing over the weapons of war of modern civilization directly to a group of primitive people who have not yet written can teach and improve the combat effectiveness of primitive people, but it cannot be said that primitive people can be changed into human beings of modern civilization overnight.

This is the peculiarity of science, and the high-level people of the earth's civilization, including all scientists, are well aware of this. Eat the rice in one bite. The road must also be taken step by step, but with these resources, the earth's civilization can take fewer detours on the road ahead, shorten the development time, and develop at a faster speed.

In the whole month after returning to Earth, Su Yichen and the others hardly had a good rest, and spent every day busy. Finally finished arranging the things at hand, and declined those invitations or banquet proposals, Su Yichen took Luo Yan back to Shimen alone.

Stone Gate. It is no longer the Shimen City of the past, nor is it the Shimen of the Earth Civilization Federal Government when it was first established, and the current Shimen is just another name for a region, and it has also been changed to a new name in the official administrative plan. There are very few people who know the original name of this place, but in Su Yichen's eyes, Shimen is still the Shimen in their hearts.

Led by their escorts, they came to a scenic area that no longer looks like it once was. The first Shimen University was destroyed during the first war of the Gaian civilization invading Earth. The old house that was later restored no longer exists, after all, more than 400 years have passed. The old red dormitory building in their memories has long since disappeared from history, replaced by a dense wood.

"This is it?"

"Yes, that's it, you see, the lake you're talking about is still there, and this grove was formed more than 100 years ago. According to the data, the previous building is located in this location. The escort was a young man from a local area who did not know the identities of Su Yichen and his wife, let alone why they had come here to look for an old building that had disappeared for more than 100 years. However, in the face of the work assigned by his superiors, the young man still did not dare to slack off, and inquired about the detailed information before leading Su Yichen over. I asked a few old people who still remembered the old building before, and only after verification did I confirm that it was this location.

Standing on a high place and looking out at the surrounding scenery, except for the lake that still has a little memory, the area covered by trees is completely unrecognizable. Su Yichen and Luo Yan both felt a little emotional in their hearts, and at the same time they felt a little sad in their hearts, they thought of their home back then, thought of the days they lived in school, and even remembered the agreement they made with Professor Wan Changchun when they left the earth.

"When we come back, we will live here, have a few more children, and then go to the university to take up a teaching position, usually plant flowers, raise grass, and go to the lake with Teacher Wan to fish ...... in our free time."

Such promises and promises echo in my ears, as if they were happening right in front of my eyes, but in reality, everything has changed, and the changes are no longer visible. Even the familiar Little Red Mansion has been covered by dense woods, and those relatives and friends have passed away one by one.

"There may still be the remains of the original building in the woods, if you want to go and see it, I will accompany you to look for ...... in the woods?" The escort was very puzzled when he saw the sad appearance of the guest, and after thinking about it, he suggested softly.

"No need, let's go back." Su Yichen sighed lightly and shook his head, even if he saw the wreckage, what would he do? The past is the past, and there is no going back. Luo Yan understood what her husband was thinking, and also sighed lightly. The two walked down the high slope, got into the car and went away.

Afterwards, they go to a cemetery where their friends are buried. Wan Changchun, Lin Dong, Tian Lao...... They are all buried here one by one, and due to the high standard of the cemetery, and it has been taken care of by the departments of the Earth Federal Government, the cemetery is also very well maintained.

The two stood in front of Wan Changchun's tomb, Lin Dong's tomb on the left, and Tian Lao was buried not far from the right. Although these three old friends have passed away in succession, they still choose this place as their ultimate home in life. Maybe when you go to another world, you won't be lonely anymore with your company.

Gently placing the flowers in their hands in front of the tomb, Su Yichen and Luo Yan didn't say anything, because what they wanted to say was beyond words. In the other world, they must be able to understand what they are thinking, standing quietly in front of the tomb for a long time, constantly recalling the bits and pieces of the year in their minds, I don't know how long it took, until the sun set in the west, the two of them once again bowed to the elders and friends who were sleeping here and said goodbye.

Leaving the cemetery, they temporarily lived in a residence in the Shimen area, which was placed for them by the federal government. After taking a break from the busyness, I finally returned to a rare leisure time, although the vicissitudes of life have changed greatly, but the breath of my hometown is eternal.

In the next few days, Su Yichen and Luo Yan lived like a very ordinary couple, they would go for a walk on the forest path in the morning, and then fiddle with some flowers and plants in the garden. In the afternoon, take a one-hour break, and then learn about the changes and conditions of some earth's civilizations in the past 400 years through the brain terminal. In the evening, the two of them cooked together, and after finishing the meal, they went for a walk in the woods, and worked until about half past ten in the evening to go to bed...... Although such a leisurely life is boring and boring, they enjoy it.

Sometimes, they will also go to the nearby university to teach students, the predecessor of this university was Shimen University, but now it has also changed its name, but in the college, seeing those young students, whether it is Su Yichen or Luo Yan, they feel very kind, in the school they can forget all their troubles, forget the relatives and friends who have passed away, and the youthful vitality affects their mood and makes it much easier.

But such days don't last long, Su Yichen and Luo Yan are not ordinary people, and although the homeland spaceship they came back to take left Su Li's assistance, many aspects of work are inseparable from them.

Just after more than three months of this plain but warm life, someone finally came to the door. (To be continued......)