Roughly figured out the origin of the monster, Yun Xing's mood was very solemn, the appearance of this monster was completely beyond his imagination, they were not some kind of alien species, but the mutation of the earth's indigenous civilization, from this point of view, the monsters' adaptability to the earth may not be much weaker than that of humans, and it is even very likely that these monsters themselves also have a very complete civilization system inheritance, with the support of this civilization inheritance, they will soon become strong again after recovery, so, It is very difficult for humans to grasp much of an advantage in the face of them, and it is even possible that the situation will quickly turn passive.

Realizing that the threat of these monsters was beyond imagination, Yunxing felt quite anxious, and the information conveyed in the Celestial Diagram covered almost the entire history of the Earth, and even some of the events that happened in the Milky Way were recorded and transmitted.

Among them are some records of the core wars of the galaxy, as well as more detailed accounts of several civilizations on Earth, and through the understanding of these records, Yunxing has a sense of enlightenment in many things.

In fact, the conflict 12,000 years ago was even more terrible than the battle that destroyed the Earth 65 million years ago, because both sides of this conflict were the most powerful forces in the universe. The forces that invaded the solar system 65 million years ago were a direct attack on the civilizations in the solar system, which led to the destruction of Maya, and the cataclysm of the earth 12,000 years ago was only because of the conflict between the two civilizations in the core of the galaxy, and the aftermath reverberated for tens of thousands of light-years and eventually affected the earth. One can imagine what a terrifying situation it would be in the core of the galaxy.

12,000 years ago, the earth's geology changed dramatically due to the aftermath of the clash of two civilizations, which led to the change of all the major civilization plates on the earth at that time.

Yunxing had a slight doubt before, since the conflict occurred 12,000 years ago, then the powerful shock wave generated by the battle between the two major civilizations in the galaxy should have reached the earth after 12,000 years, that is, now, and the situation that caused this earth catastrophe was reasonable. But 12,000 years ago, when two civilizations just clashed, how could the Earth, which was 12,000 light-years away, be immediately affected? This is something that Yunxing has always been puzzled about.

However, this time, through the information transmitted by the Heavenly Machine Map, Yun Xing finally found the answer. The collision of civilizations was too strong, and the shock wave swept the entire galaxy in a very short period of time, and such a drastic change seriously affected most of the galaxies in the galaxy, and it was precisely because of that drastic change that several major civilizations on the earth were caught off guard and completely lost the opportunity to deal with it calmly. This is also why the civilizations of places like Atlantis are theoretically higher than the earth, but they have been destroyed so completely that they have left almost no mark. That's because the violent shock wave blew a large number of buildings and materials on the surface of the earth away from the earth, all kinds of creatures died instantly, all kinds of buildings collapsed instantly, and all kinds of flying machines in the universe were also instantly destroyed by this powerful shock wave, so there were very few traces of those civilizations on the earth.

Of course, even if it was subjected to such a shock wave, there are still some traces of civilization at that stage on the earth, and among them are some biological species genes left over from several major civilizations, these biological species are hidden in a space deep underground, and after geological changes occur on the earth, these biological genes are buried deep underground. However, instead of destroying them, the cataclysm tore a hole deep in the earth, and these genes slowly multiplied in the underground space. Over the course of tens of thousands of years, the species has grown and mutated several times, forming many different types of monsters. It's just that they should have been hidden in the depths of the earth, or they were blocked from coming up in the depths of the earth, until this catastrophe broke out, and these monsters were released.

These monsters actually came from the depths of the earth, no wonder no one had found them before, and Yunxing speculated that the area where these monsters were located must be in the extreme depths of the earth, otherwise, with the development of the earth by modern society, they would have been discovered thousands of meters deep underground.

Now Yunxing has an idea, that is, if you want to control these monsters, I'm afraid you have to find the exit they came out of and reseal them, which is a temporary solution. Humans don't know how many monsters there are, and if there are a lot of them, it's a big problem.

And Yun Xing also thought of one point, that is, since these monsters are from the depths of the earth, maybe their living habits are closer to underground creatures, not to mention, at least these monsters must like to live and gather in the depths of the ground. This can be seen from the monsters he encountered in the underground space on the outskirts of the base before.

When Yun Xing watched this information, Yan Kong was also by his side, so when Yun Xing relayed these contents to Yan Kong, Yan Kong pondered for a moment, and suddenly said to Yun Xing: "Master, in fact, I also have something for you for these monsters!" ”

Yun Xingqi said: "What is it?" ”

Yankong got up, pointed deeper into the cave, and said, "There's one more thing I want to show you over there!" ”

Yun Xing got up curiously and walked forward with Yankong.

Originally, Yun Xing thought that this cave was to the ancient temple inside, but when he followed Yankong deeper into the depths, he found that there was no cave here.

Climbing over the high ground of Pangu Temple, there is a low and sloping slope of the steep slope, along the steep slope for a distance, you can see another semi-oval hole, this hole is very large, the inside is pitch black, it looks like a gluttonous mouth waiting there to devour all the outsiders who pass by.

Before walking to the entrance of the cave, Yankong did not stop, but turned his head to Yun Xing and said, "Master, please come with me!" With that, he turned and entered the hole.

Yunxing also walked down with Yankong, and when he entered the entrance of the cave, he found that this place was not actually pitch black, but the space outside was relatively bright, which made it a little dark.

With Yun Xing's vision, he could easily see the situation of the cave, and he noticed that the cave was always running straight ahead, not knowing where it leads.

Yun Xing looked at Yankong suspiciously, trying to get a clear answer, Yankong could naturally sense Yun Xing's thoughts, so he explained: "Those monsters are indeed from the underground, where there is their world, but there is not only one passage from their world to our world, but there is only one way they can find for the time being. ”

Yun Xing was stunned and said, "What do you mean?" ”

Yankong walked forward for another while, pointed to the dim and hazy space in front of him, and said, "Actually, this is the second passage to the monster world!" ”