At this moment, Xiao Yu is at the junction of the edge of the Milky Way and interstellar space, and the star that suddenly disappeared is near the edge of the Milky Way. It is a very common red dwarf star with very low mass and low temperature and luminosity. It doesn't have any affiliated planets, not even many asteroids or interstellar dust orbiting it. It was orbiting a nearby binary star system alone, like an abandoned piece of sand.

This type of star is the most numerous and least noticeable in the Milky Way, and it is of little value to either a lower or a higher civilization. For low-level civilizations that want to rely on stellar radiation for survival resources, its habitable zone is too small, and it is too close to the star, and there is too much harmful radiation, and for intermediate civilizations that want to rely on rocky planets or asteroids to obtain resources, it has only a bare main star, no decent planet, and no value. For advanced civilizations that use stars as fuel, for example, for Xiao Yu, it is too small to be worth doing. In short, it belongs to the Milky Way, the kind of star that has no presence and the least attention.

But now, under the current situation that Xiao Yu is searching for traces of the Guardian Civilization with all his might, its disappearance is enough to attract Xiao Yu's attention. Although it is only a red dwarf, it can make such a star disappear at least a sixth-level civilization. Moreover, there is something strange about the process of its disappearance.

Xiao Yu saw that it first disappeared from the visible light band and various radiation bands, and then after a while, it disappeared from the gravitational wave aspect. Based on this, Xiao Yu easily came to a deference: there was an unknown existence that was trying to hide it, and this civilization took some means to shield its radiation band first. After the work was completed, its gravitational pull was also shielded by gravitational shielding technology, so that it disappeared from the large-scale visible universe.

This phenomenon immediately aroused Xiao Yu's interest. Xiao Yu made a guess almost instantly: "There is a high chance that this is something that the Guardian Civilization did. Perhaps, the Guardian civilization is by collecting such unobtrusive stars, evaporating them from the world, and then quietly transporting them away to act as nodes on the star path. Keep up with it first, and as long as you follow it, you'll be sure to find out where the Guardian civilization is hiding. ”

Xiao Yu made a decision in an instant. So, Xiao Yu immediately sent several specially made covert miniature spaceships to rush towards that place. Xiao Yu knew that the Guardian Civilization probably hadn't discovered its traces yet. Because if the Guardian civilization already knew that he had laid a net in this place. How could they still catch stars in this area?

"As long as you don't find me...... From now on, all probes will be covert, and all other types of spacecraft except the tracking ship will also be covert. Xiao Yu quickly gave the order. Xiao Yu's large army did not move, but only sent a few of the most concealed small spaceships. If you send a large force, it is easy to detect. It is most appropriate to dispatch a small concealed spaceship to obtain location information and then dispatch a large force to encircle and suppress.

Three ultra-miniature ships, about the size of Earth-era desks, sailed with a special curvature and began to make their way towards the place where the star had disappeared. It is impossible for a star to move too fast in the process, and the speed of such a small ship is enough to catch up and then follow quietly.

Probes near the star are quietly watching it. Provides direction guidance for approaching tracking ships. During the time it took for the tracker to arrive. One of Xiao Yu's guesses was confirmed, and the confirmation of this guess made Xiao Yu even more confused.

Although this hidden red dwarf is shielded from the radiation and gravitational bands, it is impossible for a star to completely disappear from the universe, and it will always leave some traces. Until now. It had traveled more than ten light-years away, but above this distance, the probes that Xiao Yu had arranged in advance could still detect it.

Then it is very strange, since this hidden star can still be observed by Xiao Yu at a distance of ten light years. In the previous large-scale carpet search, why couldn't Xiao Yu find the star path node arranged by the Guardian Civilization? Judging from the current situation, there is only one reason why Xiao Yu can't find it, and that is that the Guardian Civilization has not arranged nodes here at all.

This is Xiao Yu's confirmed guess, but it is this incident that makes Xiao Yu even more confused. Because if you want to sail the Andromeda Galaxy, you will definitely set up nodes in this area. Set the node outside of this area? It's not impossible, but what's the reason for doing so? Although this can surprise some people, it is also too costly, such as an earthling who has to travel a thousand kilometers to the north, but he sets the first supply point a hundred kilometers to the south.

Gradually, another guess surfaced in Xiao Yu's heart. But this speculation is too outrageous and unreasonable, and Xiao Yu is still not sure.

A year later, Xiao Yu's tracking spacecraft finally caught up with the star. With the help of the very faint reflection of starlight nearby, Xiao Yu saw the appearance of the star at this moment.

It has completely changed its appearance, and Xiao Yu knows that this change in appearance comes from external forces. There is a black film sphere of unknown material that envelops the entire star, and it is this film that blocks most of the radiation of the star, including light, infrared, ultraviolet, neutrino, gamma rays, etc., at the same time, this film also has very good light absorption characteristics, and only a very small part of the external star light is reflected back after shining on it. This means that it is very difficult to detect in the light band. If it weren't for Xiao Yu's tracking spaceship equipped with very sensitive optical instruments, Xiao Yu wouldn't have seen it at all.

On top of this large black film ball, there are faint protrusions, and there are some instrument-like things built there. For fear of being discovered by them, Xiao Yu didn't dare to get too close, but even with observations above such a distance, Xiao Yu probably guessed that those things should be gravitational shielding instruments, as well as related equipment to support the operation of the film, and equipment that can bring an entire star into the curvature voyage.

"Dyson ball? It's also up to you to come up with it. Xiao Yu thought a little inexplicably.

The Dyson sphere is a kind of imagination of human beings in the age of the earth, and human beings fantasized about building a large ball to envelop the entire star in it, so as to achieve the effect of collecting all the radiant energy of the star for their own use. But in Xiao Yu's development process, the Dyson ball did not appear at all, because it was not necessary. Starting from the elemental decay technology, energy is not a shackle for Xiao Yu, and the abundant substances in the galaxy are used by Xiao Yu at will, so why bother building something like a Dyson sphere. But Xiao Yu didn't expect that the Dyson ball would have other roles in the hands of the Guardian Civilization.

That is concealment, allowing a star to disappear for no apparent reason.

The actions of the Guardian Civilization reminded Xiao Yu of some things that happened in human society during the Earth Age. In some years, in places where the security was not good, at night, people often walked and suddenly got caught in a cloth bag, and then they were pulled away in the dark. Now that I think about it, what happened to this star at this moment is very similar to the person who was kidnapped at that time.

After secretly sighing in his heart, Xiao Yu manipulated his small spaceship and continued to follow behind. By this time, Xiao Yu had basically affirmed that the person who kidnapped the star in a cloth bag was at least 99% likely to be the Guardian Civilization.

So far, Xiao Yu has been tracking this star capture team for more than a hundred years, and the two sides have sailed a distance of more than 8,000 light years. When this team sailed for more than five hundred light years, Xiao Yu's large army had already quietly launched and followed them. Five hundred light years is just a voyage of more than three years for Xiao Yu.

"Isn't it true that the star path node was built in this area......" As the distance of the voyage became farther and farther, and the distance from the pre-demarcated range became farther and farther, the guess in Xiao Yu's heart became more and more affirmative, "It seems that your voyage target is not the Andromeda Galaxy......"

It seems that at the beginning, when he heard that the Guardian civilization was going to sail across the river system, Xiao Yu subconsciously thought that the target of the Guardian civilization's voyage was the Andromeda Galaxy. Because people go to high places, in this galaxy group, the Andromeda Galaxy is the only galaxy larger than the Milky Way, and if you sail to the river system, it is undoubtedly to go to the Andromeda Galaxy to have more room for development. However, the Guardian civilization did something unexpected, and they did not choose the destination in the Andromeda Galaxy.

By now, Xiao Yu has basically affirmed this, but Xiao Yu still doesn't know where the guardian civilization chooses its destination. This can only be guessed after seeing the location of the Guardian Civilization Star Path node.

Time passed bit by bit, and after this star was dragged and sailed for more than two hundred years, the star capture team of the Guardian Civilization finally stopped. Xiao Yu, who was hiding in the shadows, saw that in this place, there were at least thousands of similar stars staying here...... (To be continued......)