The waiting time is always boiling, it seems that even this civilization has not completely mastered the technology of space, at least in terms of eliminating space cracks, it is still quite slow, although Liu Xuan is already telling himself not to panic at all times, but it is inevitable that he is a little nervous in his heart, this is the real temptation.

It's like a hungry person seeing food and drinking water, and the feeling is like longing for a long leg to get to that place quickly. At this time, Liu Xuan is actually the same as those people, after all, this is a matter related to their own lives, and it is naturally the most reassuring to hold it in their own hands.

The old man was naturally not nervous at all as a benefactor at this time, standing there, not talking to Liu Xuan, just standing there, quietly waiting for the elimination of the spatial crack. Liu Xuan couldn't see his eyes, but Liu Xuan could imagine that the old man must be in a very bad mood at this time.

After all, their civilization will eventually perish, as one of the last remnants, there is only a lot of sadness in their hearts, death is only a matter of time for them, they control the space, but there is still a long way to go to control time, but now they themselves have no time.

Technology is an absolutely important existence among various civilizations, and it is rare for one civilization to support a very important technology for another civilization, if it weren't for the fact that this civilization was really close to extinction, Liu Xuan and the others would not have gotten such a good thing. But how many people will understand the feelings in the old man's heart at this time?

For Liu Xuan, it is just a simple technology, but for the old man himself, he is the representative of their civilization, and now in order to pass on this technology, the old man can only temporarily put down the pride of his advanced civilization and hand over the high-level technology that represents their civilization to Liu Xuan. How sad this is in the old man's heart.

If it was placed in the past, when their civilization was still very advanced, the old man would never take a second look at a civilization of Liu Xuan's level, and the level gap between civilizations also made them have an excessive sense of superiority over low-level civilizations. They don't invade weak civilizations, but they also don't think too highly of weak civilizations.

The old man's mood at this time was full of emotions, mainly due to the light-speed technology, in fact, this process is also very well understood by people of Liu Xuan's level, but they don't have light-speed technology, they can only understand this kind of thing at the theoretical level, but the old man is a real experiencer.

When the old man introduced Liu Xuan just now, he also explained that these two technologies are not too important to them, but are they really not too important? That's naturally not true, otherwise they have nothing to do, and they spent so much effort to build a high-level thing like a spatial rift here to protect two unimportant things?

They have mastered the power of space, but they still need to carry out wormhole crossing because of the remote space technology, but the resources spent to build a wormhole can be described as terrifying

Most of the time, civilization still needs light-speed propulsion technology to travel through the universe.

And the old man and Liu Xuan said so much, but the only thing that didn't explain it was why they were alive, and the only reason was that when the Great Annihilation came, they were not on this planet, that's all, this is what gave them a chance to survive.

The speed of light will distort space and time, even on top of the low-level civilization of the earth civilization, this theory is widely recognized, and in fact, this theory is the truth, and it is an extremely difficult thing to change in the universe, and the development of this civilization is inseparable from the constraints of this cosmic law.

Before the catastrophe, or before the war, these people also took a light-speed spaceship to a special place because of the needs of scientific research, where there is also a special, terrifying existence: a black hole.

The old man still remembered that as long as their task was to check the specific situation on the planet near the black hole, as an advanced civilization, it was not too difficult to approach the black hole and then escape. The most difficult thing is mainly a matter of time, which is more terrifying than the speed of light.

The gravitational pull of a black hole is already so great that it can completely distort space, and the space distortion will bring an absolute change in time, and the flow of time will slow down, which is for those of them who are close to black holes. For them, scientific research may only be carried out for a few hours, but for the outside world, the world beyond the black hole, time has passed for hundreds of years, thousands of years are possible. The war was much shorter.

Take the war between this high-level civilization and the sixth-level civilization as an example, in fact, it lasted for less than fifty years, and this time may be short-lived in the dimension of the universe. It takes tens of thousands of years of life to be born and developed, and in the face of destruction, it may only take a few years to be enough.

When they returned, their planet, their home planet, and even their galaxy were completely gone, except for the scattered, scattered boulders floating in space.

In the end, they can only come back according to the navigation system, and the cemetery in the universe is a wall-like existence for them, and in the end it also becomes their own cemetery, which is a wonderful irony. After they returned. Many of these scientific research ships also came back intermittently, and finally formed the last life of their civilization.

But the reality in front of them is that even according to their numbers, there is no way to reproduce for a long time, and after a certain period of time, it will naturally gradually perish. Liu Xuan saw their houses collapse, these can be repaired, but many of the advanced technologies that maintain the operation of this planet have been destroyed, and most of them are simple investigators, and there is no way to recover them

complex of these systems.

The old man is the highest-ranking existence among these people, but that's all, the old man himself is helpless about these things, and the only thing the old man finds is that all the high-level permissions on this planet have fallen into his own hands.

According to their setup for this planetary system, once a high-level person dies, the supreme control will naturally fall into the hands of the next high-level person, and so on. According to the original situation, even if the old man lived to be two thousand years old, it was impossible to gain these controls.

This is also a disguised indication that there is really no life on their planet, and the old man and those who sailed away are the last survivors, and in the end, according to the intentions of the ancestors, they decided to pass on these technologies, after all, this is also the highest technological level of their civilization.

At this time, Liu Xuan, who came specifically to find them, accidentally entered their assessment, and finally Liu Xuan became the person they chose to inherit, and what the old man had to do at this time was to pass on their skills to Liu Xuan, so that at least they could protect their allies, which were the allies who survived the treaty at that time.

Liu Xuan naturally didn't know that in such a short period of time, the old man would have so many thoughts in his heart, he was just simply waiting, the old man may be mourning in silence, mourning for his own civilization that has disappeared, and these technologies also represent the evidence that their civilization once existed one after another.

The old man fell into contemplation and didn't know how much time had passed, after all, there was no concept of time in this kind of space, and in the end, it was because of Liu Xuan's voice that the old man woke up, and Liu Xuan at this time even doubted whether the old man was dead, so he couldn't help but touch the old man, this simple touch completely pulled the old man back from his fantasy.

"I'm sorry, I'm a little distracted when I see this technology, hehe, at this time, I still haven't come out of my sadness." The old man smiled, but there was obviously a lot of sadness between the laughter.

Under Liu Xuan's annotation, the old man took out another thing, this thing was the same as the metal last time, just when Liu Xuan thought that the old man wanted to introduce this thing to himself, the old man actually threw this thing directly to the middle of this room. Liu Xuan was stunned, and after doing it for a long time, the old man actually used this thing to test the spatial crack.

Unlike the metal last time, this thing finally arrived in the middle of this room intact, it seems that after waiting for a long time, the spatial crack has been completely eliminated, and the two of them can safely reach the two items just now, Liu Xuan finally waited until this time.

The old man walked in front, Liu Xuan followed closely behind, as if he didn't want to see these two key technologies again, the old man quickly got something from the two pedestals and threw it directly to Liu Xuan, Liu Xuan was naturally in a hurry to catch it, quite careful, and the old man's casual appearance formed a sharp contrast.

this

For the old man, it may be a very casual thing, but it is of great significance to Liu Xuan, Liu Xuan naturally has to be cautious, but there is no such simple and casual as the old man. To put it bluntly, these two seemingly small things can help their civilization survive.

Liu Xuan cautiously looked at the two things, dark and short figure, it is hard to imagine that there is advanced technology in it, but Liu Xuan is still quite careful, although these two things are very small, they are quite detailed, there are patterns on them that Liu Xuan can't understand, and there are also a few small buttons.

"There are three buttons on the top of each one.,The other two are actually destruction buttons.,After all, we also want to prevent outsiders from stealing it.,The middle one is the play button.,You can display the things stored inside.,Both of these things are disposable.,Use it once and completely abolish it.。 The old man turned around and began to tell Liu Xuan how to use it.

Liu Xuan nodded, carefully placed the two things in his close-fitting pocket, and carefully sealed them, for fear that there would be some other accidents, after all, his time was not quite abundant, and there was only one chance. Liu Xuan's caution is still quite necessary.

"That shield, just release it outside your planet, outside the atmosphere, remember, the same way to use it, press the button in the middle, and the shield will automatically look for your planet to protect." Seeing that Liu Xuan had put away these two things, the old man also added again.

Liu Xuan nodded again, indicating that he remembered that this thing was so important to them, Liu Xuan didn't dare to have the slightest carelessness, and Liu Xuan was also nervous about the old man's words. This is a matter related to the fate of their planet, and it is absolutely careless.

"In addition, these two things can only be opened by you, even if other people get this thing, there is no way to open it, and other people who are not authorized, no matter what button they press, will cause this thing to explode, remember, it is also quite important to open it yourself and ensure that you go back alive." As the old man spoke, he walked outside, and Liu Xuan followed closely, and they returned to the huge room where they had been, and the small thing above their heads was still exuding its own light.

Hearing this, Liu Xuan was a little nervous, if only he could open it, things would be more complicated, if they had an accident, they could still use an unmanned spaceship to take these two things back, but the current situation is that Liu Xuan can't die, at least not before unlocking this technology, otherwise what Liu Xuan sent back would not be technology, but an alien bomb, the ghost knows how powerful the explosion of this thing is, this is a high-level civilization thing.

Liu Xuan let out a long sigh, it seems that they are going to return to the earth alive no matter what, this is not a simple matter. According to the old man, the news of their civilization spreading technology has also spread. Otherwise, that mysterious planetary civilization would not have known.

This may mean that, if they are unlucky, they may run into other civilizations when they go out on this planet. Once it is a civilization that they can't compete with, they are afraid that they will be in big trouble, although the technology will not be leaked, but it will be difficult for their civilization to obtain this technology. Anyway, the difficulty of the whole thing has risen again.

But Liu Xuan thought for a while, but he thought of other things, just at the beginning, the old man said that he would give him three things, this time it was two things, so where is the third thing. Something that is not placed in one place must have two extremes. On the one hand, it's too weak to be in that room for protection. At the other extreme, that thing is extremely important and needs to be more closely protected.

"Aren't those three things? So what's the third thing? Seeing the old man walking slowly, Liu Xuan couldn't help but ask, after all, this is quite important to them.

When the old man heard Liu Xuan's question, he didn't answer, but stretched out his right hand, pointed to the sky with one hand, and said slowly: "The third item is also the most precious thing, I don't have the right to take it down for you, you need to try it yourself, that is the third thing, and it is also the most precious thing of our civilization." ”

Following the gesture of the old man, Liu Xuan looked up, there was nothing else, except for the small object that was glowing! Is that the third item?! The highest level of their technology that this civilization claims to be, even if they are given the same conditions, does not necessarily produce the second final product again.

Liu Xuan also didn't know what to say, what does this mean, Liu Xuan is a little confused, this thing is something that the sixth-level civilization wants, this civilization actually wants to give it to himself? But so far, Liu Xuan still doesn't know what this thing is for.

"This, this technology is too valuable, although I don't know what it's for, but this is the highest level product of your civilization, so simple to us, we are also a little ......." Liu Xuan's heart really thinks so, after communicating with the old man, he knows the relationship between civilization and technology, the two technologies in front, Liu Xuan still doesn't know if human civilization can be well controlled.

However, Liu Xuan's words were still not finished, and he was brutally interrupted by the old man.

"Okay, don't say it, I know it's not enough according to your level, but this is not a gift to your civilization, but a gift from us to you, as someone who can pass our test, we still believe that you have the ability to deal with this thing." The old man said to Liu Xuan with a serious face, it was completely different from the amiable attitude just now, it seemed that the old man really attached great importance to this thing.

"Me, for me?" Liu Xuan was taken aback, he didn't expect that this most advanced thing was actually for himself.

"There's something special about this thing in itself, to

So what to do, I know, but I can't tell you, I can only say why this thing has attracted the attention of the Sixth Rank civilization, and even does not hesitate to start a war. This thing itself is not for a civilization, but for individuals, or a few people, and it has very high requirements for these people, although you have passed our test, but whether you can get the right to use this thing, it depends on your own performance. The old man said to Liu Xuan in a deep voice.

"Why are you being targeted by a sixth-level civilization?" Liu Xuan is still very concerned about this issue.

"Because there is a secret hidden here that leads directly to the seventh level of civilization!"

The old man's voice was not loud, but it completely stunned Liu Xuan.

(End of chapter)