That's right, Xiao Yu's feeling at this moment is not fear, not shock, but just pure surprise. For Xiao Yu now, a neutron battle star is just a neutron battle star, and it is really not worth wasting so much emotion.

At this moment, what was presented in front of Xiao Yu was such a surprising picture. A very small, extremely high-mass star, which is invisible in the visible light band, is moving at a high speed in curvature space while emitting a huge amount of radiation, with a speed of almost more than a thousand times the speed of light. At the same time, in Xiao Yu's monitoring network, Xiao Yu detected more similar fluctuations that were farther away and weaker. What this means, Xiao Yu knows very clearly.

Deep in this river system, there are more such neutron battle stars. With such a huge number of neutron battle star swarms gathered together, Xiao Yu couldn't think of anything other than war.

That's the fluctuation that can be caused by the aggregation of at least hundreds of thousands of neutron battle stars, or white dwarf stars modified from white dwarfs. Hundreds of thousands of neutron stars and white dwarfs, and even the black hole battle stars that Xiao Yu speculated, this kind of scene made Xiao Yu excited when he imagined it.

This river system has no name, and in Xiao Yu's catalog, it has only one number. Because it's smaller, and it's bleak, there's really nothing that stands out. There are too many river systems in the universe, and Xiao Yu has no need to give each river system a name. Most of the river systems in the universe are the same as this one, with only one number.

This neutron battle star, which is closest to Xiao Yu, is also a certain distance from Xiao Yu. And it probably didn't find Xiao Yu. Otherwise, how could it stop without stopping? Of course, at the moment of discovering this neutron battle star. Xiao Yu took the highest level of concealment measures against his huge fleet, and perhaps it was this concealment that played a role.

This neutron battle star aroused Xiao Yu's great interest. Xiao Yu still remembers when he was in the galaxy. What a huge pressure the Neutral Warrior of the Sweeper civilization has put on itself. Even, in order to defeat the neutron battle star, his companion ghost clan was wiped out, and he had to endure the pain of separating from the Shenzhou civilization and stepping into the dark and vast universe alone. It wasn't until he mastered the formula of empty energy and was about to enter the seventh-level civilization level that he borrowed the space laboratory and took a lot of effort to destroy it.

The height reached by the neutron battle star in the Milky Way. It makes Xiao Yu feel incredible when he thinks about it at this moment. Xiao Yu still remembers his perception of the Neutron Battle Star at that time, this perception is still a mysterious rebel even now. Neither the defenders nor the spokespersons have ever given Xiao Yu this feeling. In the hearts of all galactic civilizations at that time, the Neutron War Star seemed to have become an invincible thing, no matter how powerful it was. In front of the neutron battle star, they all fell into the sand. With this neutron battle star. The Sweeper civilization has dominated the galaxy for tens of millions of years.

Of course, for Xiao Yu at this moment, a neutron battle star is nothing. Although the Neutron Battle Star manipulated in the hands of the seventh-level Extreme Astral Civilization would certainly be thousands of times more powerful than the Sweeper Civilization, Xiao Yu still didn't care. Frankly speaking, the combat power of a neutron battle star may not be comparable to the combat power of Xiao Yu's stellar warship, let alone the Human. Dream, Canglong. Kyushu and other Cluster-class warships.

From this neutron battle star, Xiao Yu felt many things, including the passage of time, including the increase in his strength, and his own growth. These things, through such a form of contrast, are clearly displayed in front of Xiao Yu.

"The days of the hasty escape under the Neutron Battlestar seem like just yesterday. In the blink of an eye, I've grown to the point where I can completely ignore the Neutron Battlestar. Xiao Yu thought with emotion, "The seventh-level civilization in the direction of the Extreme Star, this is the first war-related seventh-level civilization I have encountered, maybe I should get in touch with them." ”

"With such a huge scale of neutron battle star cluster transfer, what are they for? What kind of seventh-level civilization is the seventh-level civilization that is fighting with them? Xiao Yu thought secretly, the main fleet remained immobile here, only sent a little detection fleet, maintained the highest degree of concealment mode, followed this neutron battle star, and quietly began to advance.

"This extreme astral civilization can't be at war with that music civilization, right?" Xiao Yu thought silently, "The music civilization said to wait for me in this river system, so it is quite possible for them to unexpectedly encounter this extreme astral civilization here." If it is a musical civilization, who will win the final victory in their war with this extreme astral civilization? Although the music civilization is an eighth-level civilization, they are interest-related civilizations after all, and according to the fact that I can barely fight against the microscopic civilization when I am still a sixth-level advanced civilization, in the war with the extreme astral civilization, the music civilization will not necessarily have an advantage. Well, in that case, I'll have to be cautious. After all, the musical civilization once showed me kindness and helped me escape from the attack of logical weapons, and if something happened to them, it would not be a good thing. ”

Thinking like this, Xiao Yu sent another part of the tracking force and followed behind the distant neutron battle star again.

"Transforming a neutron battle star or a white dwarf star is a different growth direction based on space technology, which I haven't mastered yet. If I were to modify neutron stars, I would be able to study them for thousands of years, but it would be different if they had black hole battle stars. Transforming black holes will inevitably be applied to rule technology, and in my speculation, rule technology belongs to the category of eighth-level civilization. Let's see what happens, and if I can, I'll trade with this extreme astral civilization and exchange a little technology for their technology. ”

The manufacturing technology of the Neutron Battlestar is quite attractive to Xiao Yu. In the war of the seventh-level civilization, the Neutron Battlestar also has a very strong combat power, which is very obvious. In Xiao Yu's estimation, the Neutron Battlestar was probably comparable to his own stellar-class battleship, while the White Dwarf Battlestar was comparable to his own planetary-class battleship.

This type of Extreme Astral Battlestar has a feature, that is, it is basically immune to the attack of small and medium-sized warships. Taking an ordinary unmodified Neutron Battlestar as an example, Xiao Yu's national-level warships may not be able to cause significant damage to it, and provincial and municipal warships, as long as the group size is less than one million, basically have no threat to the Neutron Battlestar. On the contrary, it is the impact ability of the neutron battle star, combined with the high-speed maneuverability of the seventh-level civilization, which can basically destroy a warship of this level with a single impact.

When Xiao Yu was still a sixth-level civilization, there were examples of stellar-class warships escaping under neutron battle stars. However, in this example, it is also necessary to consider the factor that the neutron warstar is not in the hands of a seventh-level civilization, as well as the huge size of the stellar-class battleship. Even if it is a provincial and municipal warship of a seventh-level civilization, it will not be as big as a stellar-level warship of a sixth-level civilization.

Time passed little by little, Xiao Yu's main fleet stood still, and the spy spacecraft that followed the neutron battle star detected increasingly strong spatial fluctuations. The neutron battle star finally broke away from the curvature space and began to make a regular voyage, while Xiao Yu's spy spaceship hid in the corner of the universe, quietly observing everything here through long-distance detection equipment.

Everything was just like Xiao Yu imagined. In this cosmic space, there are hundreds of thousands of neutron stars and white dwarfs! These are undoubtedly Extreme Astral Battlestars that have been modified! Among them, the number of neutron battle stars is about 100,000, and the number of white dwarf battle stars is nearly 300,000.

Seeing that his speculation had finally been confirmed, Xiao Yu finally couldn't help but feel a little shocked in his heart: "Has this extreme astral civilization gathered the neutron stars and white dwarfs of the entire river system together?" ”

In Xiao Yu's sight, these many extreme stars are quietly suspended here, some have rotation, some have no rotation, but one thing is the same, that is, they are all emitting strong radiation, and the radiation of hundreds of thousands of stars is intertwined, turning this space into a real hell......

Neutron stars and white dwarfs both originate from the remnants of dead stars, but neutron stars can only be born in the remnants of larger stars. The presence of a neutron star in the universe means that a supernova explosion occurred some time ago. Relatively speaking, white dwarfs are much more common, and in this universe, stars with small masses and cannot reach the supernova explosion occupy the vast majority. When these stars die, they form white dwarfs. There are many more white dwarfs in the universe than neutron stars.

Xiao Yu observed them carefully, his gaze shifting little by little. Gradually, Xiao Yu saw what the enemy was facing by this group of Extreme Star Stars.

It was undoubtedly a group of technologically civilized warships, and the hull of the spaceship, which was clearly full of traces of artificial creation, clearly showed this. It's just that there is one thing, just suddenly, Xiao Yu feels that the shape of these technological civilization warships seems to be a little familiar.

"Interesting civilization, isn't it?" I don't know when, that musical civilization has come to Xiao Yu's side, and they still say in that rhythm like singing: "The Extreme Star Civilization is a rare ...... in this universe" (to be continued......