Xiang Nan's heartbeat started to accelerate. That black book was exactly the same as the black book that Little Sparrow stole back.
It was even possible that the black book in his storage ring was the same as the one in the mural.
However, there was no description of what this black book was used for, or its specific origins, nor was there any description of it in the murals.
However, on this scene where everyone was lifting the black book, there were some unclear but intensely unsettling patterns painted on it.
"This is an ominous sign." The serpent said, "You can probably see from these murals that what is recorded in this black book is a very dangerous thing."
"What it records is probably not a good thing."
Xiang Nan also felt the same way.
There was a lot of space in the mountain, and there were many murals.
In order to figure out this problem, Xiang Nan accelerated his flying speed and flew around the mountain to see the huge and magnificent murals.
He discovered that most of the murals depicted the battle against the lightning bull.
As for the black books, there were very few records.
After Xiang Nan finished reading it, he was only able to confirm one clue. That was, this black book did not belong to this destroyed civilization.
Like Xiang Nan, they had accidentally obtained the black book and successfully opened it once.
But how to open it? What is the content inside? There is no description on the mural.
However, the other scene attracted Xiang Nan's attention. This scene had nothing to do with the black book, not even the lightning bull.
Instead, it described another creature that Xiang Nan was already familiar with, the Anti-Laws creature.
From this mural, Xiang Nan saw an astonishing fact. It turned out that the anti-law creatures of the Nether Realm were originally "raised" by this lost civilization.
To the martial artists of the Lost Civilization, anti-law creatures were also extremely terrifying and dangerous. They were also carefully raised and would often be swallowed by the anti-law creatures if they didn't get it right.
After the Battle of Annihilation ended, all the human beings of this civilization were released before they were extinguished.
As for the exact origin of the anti-law creature, I don't know. All I know is that an awesome man discovered the anti-law laws while studying martial arts. He accidentally discovered the anti-law space and grabbed a few anti-law creatures from it.
Xiang Nan seemed to be deep in thought. The person that the Asskicker had discovered was most likely the Great Nether Realm.
The Little Nether Realm and the creatures in the Little Nether Realm that he had gone to were the parts that had escaped from this world.
However, there was still nothing about the black book.
"Let's go down and take a look." The big snake said.
Xiang Nan had been flying in the air. In fact, the space inside the mountain was extremely large.
There were all sorts of buildings scattered all over the place. It was unknown whether this place was once a sect or an empire.
In short, it should be a very important place, so there might be some strange treasures found here.
Xiang Nan descended and discovered that there were a large number of mountain-like buildings on the ground inside the mountain. These vertical mountain peaks had been dug out one after another. They were exquisite and elegant mountain palaces.
This place should be inhabited.
Looking around, there could be hundreds of thousands of such peaks, densely packed like a coniferous forest.
There were at least a few dozen to a hundred palaces on each mountain peak.
Xiang Nan reached out and touched a pillar on the palace. The pillar quickly turned into dust on the ground.
"How many years has it been?" Xiang Nan said in surprise.
"I'm afraid it's been hundreds of millions of years," said the serpent.
The human civilization that Xiang Nan himself knew about began about 300,000 years ago. However, after seeing this place, he realized that he was only in one of many human civilizations.
It turned out that hundreds of millions of years ago, a splendid human civilization had already appeared.
He flew deeper. Looking back from here, he could no longer see the entrance to the mountain. He did not know if those martial artists had chased after him.
They were too far away to hear any movement. Xiang Nan was standing here at this moment, just like the Haoran Sect in the East China Sea Province, looking towards Haojing. It was impossible for him to see anything so far away.
He discovered that these mountain buildings were arranged in a circular pattern, like stars arching across the moon.
If he calculated this way, he would treat these buildings as a big circle, then where was the center of the circle?
Xiang Nan accelerated his speed and flew towards the core area at the speed of light. He flew for a few seconds and could be said to be a million kilometers away.
It was in this vacuum that he was able to use the speed of light so recklessly.
A magnificent palace appeared in front of him.
Xiang Nan was too lazy to see how big this palace was. In any case, it was more than ten times bigger than the Haotian Imperial Palace he had seen before.
He floated half a meter above the ground and slowly floated inside.
Immediately after, he discovered a situation. This place really looked like a sect, and this palace looked like an inner sect, a place where the elders and sect masters lived to cultivate.
It was because he discovered a very familiar modern term that had appeared in such an ancient civilization.
"Good Fortune Palace."
The Creation of Heaven and Earth was mostly described as medicinal pills.
Xiang Nan was excited. How powerful were the pills left behind from hundreds of millions of years ago?
Two ancient stone gates stood in front of him. Xiang Nan didn't know what array had sealed the stone gates. He reached out and lightly touched them.
As a result, the stone door instantly turned into dust.
"That saves me a lot of trouble." The big snake said.
Xiang Nan floated inside and sighed, "It's easy to save trouble, but it's also troublesome."
"Even the gate is like this. Even if we find the pill, I'm afraid we won't have a chance to eat it."
Sure enough, there were a large number of ancient pill furnaces and wooden shelves inside.
There weren't many wooden shelves. There were only three rows. Each row had ten rows. Two-thirds of the pills had been taken away, leaving one-third.
When these pills appeared in such a place, the sect elders must have the qualifications to eat them.
Even though Xiang Nan knew that he didn't have the chance to eat, he was still very excited in his heart.
He went to look at the brocade boxes and found the corresponding introductions. Upon seeing them, he immediately took a deep breath.
Eighth grade pills!
The first row of wooden shelves were actually filled with grade eight pills.
The second row of wooden shelves were all grade eight.
The third column was even more terrifying, and all of them were Ninth Grade pills!
Xiang Nan's tears were almost falling. Although two-thirds of the pills were gone, the remaining one-third was not small.
But he really couldn't use these pills anymore.
He still had one in ten thousand luck in his heart, gently touching a brocade box.
As a result, as soon as the brocade box touched Xiang Nan's finger, it immediately turned into ashes.
Including the colorful and extremely beautiful spherical pills inside, they had also dissipated the moment they appeared.
