Ten thousand years ago, people were only taller than they are now, without wings on their backs, and they didn't have sharp horns on their heads, which really disappointed Xu Chen.

After 10,000 years, the size of human beings has been reduced by half, and I really don't know where to evolve.

Xu Chen's gaze moved from the skull of the skeleton all the way down, and when he reached the double span, he couldn't help but shake his head and sigh: "It's a pity! It's a pity! If only it hadn't gotten smaller......

Bad taste, a common problem of being a male animal!

After sighing with emotion, Xu Chen returned to normalcy and continued to observe the space.

There may have been countless materials in the space, but the years are really ruthless, and now the whole space is empty except for these fossilized utensils.

"Huh, what is this?"

Under the palm of the skeleton was a stone slab about two feet long and one foot wide, Xu Chen didn't pay much attention to it at first, but after taking a closer look, he found that there were many patterns and patterns carved on this stone slab.

Xu Chen put the Yang Ziyun on his back aside, and forcefully pulled out the stone slab under the skeleton's hand.

"This ...... Is it a book?"

The slate could be turned over and laid on the ground one on the left and one on the right.

"It's strange, don't all the people who cultivate the truth use jade slips?"

This is not Xu Chen's guess out of thin air, last time he searched for jade slips from Senior Brother Ma and his group, and later asked Wan An, only then did he know that these jade slips were tools used by cultivators to store information.

After the two stone slabs were spread out, Xu Chen really found many inscriptions on them, earthworm-like inscriptions, crooked.

Xu Chen knew that it would be impossible for him to understand these words, but out of curiosity, he still read them from left to right.

Don't ask why it's from left to right, not from right to left, I can't understand it, so naturally how convenient it is.

But that's how strange, or strange, happened!

Yes, Xu Chen actually understood these words!

Xu Chen didn't know what was going on, anyway, when he hadn't finished reading the page on the left, a text appeared in his mind, all of which were words he could recognize!

"In the three hundred and eighty-seventh year of the Holy One, in June of the first year of Heavenly Blessing, His Majesty's prayer for heaven and change of the Yuan still failed to prevent the coming of calamity......"

"The way of heaven will be lacking, and the demon king will come to the world...... In the last days, the ignorant people of the world still have not given up their desire to fight for power and profit...... It's ridiculous! The so-called Demon Lord is just like a lost dog in front of the power of heaven and earth......"

"Yu ...... I can't bear the world to go into exile in the sea of stars, and I just want to find a way to restrain the poison...... Survive in the remnants of this ......"

"Tens of thousands of paired samples, the remainder, but only a few ......"

"Wrong?"

“…… The reserved aura is no longer sufficient...... But the road ahead is still slim......"

"Haha, it worked!

"Finally a pair of samples survived!"

"There is not enough poison...... In order to feed them, Yu had to inject toxin into the flesh and blood on his body and feed it with his own flesh and blood......"

"Why? Why is it still not possible?...... The male beast is dead, and the rest of the beast has to return here with the female......"

"I'm so tired...... After a few years, it will be a waste of ...... in the end."

"Yi'er...... I'm finally able to see you......"

The handwriting on the slate became more and more blurry the more it went to the back, and it had been weathered out of many omissions, and it was also these intermittent words that were reflected in Xu Chen's mind, but fortunately, Xu Chen still figured it out in general.

"So this guy is a guy who couldn't leave!"

Xu Chen learned from the monk Huineng that after the great changes in the world that year, the magnates and masters left the planet, which is also the consistent style of the privileged class.

And this person failed to leave, probably because his status was not enough.

"But what is he really doing?" Xu Chen sat cross-legged on the ground, propping his head with his hands, thinking.

"Looking at the appearance of this real yàn room, it looks like what kind of biochemical real yàn ......"

"That's right! Pair, male, female......"

"Is it ?......?"

Xu Chen's eyes lit up, he stood up, trotted all the way to the stone jar on the edge of the giant wall, and searched all the way.

There were too many stone jars, and it took Xu Chen more than half an hour to find what he expected in a stone jar!

"Sure enough!" the corners of Xu Chen's mouth rose, and his eyes stared at the fossilized antwolf beast in the stone jar.

"The rest of the jars were empty, leaving at most some fossils with stumps and broken arms, only this ant-wolf beast was relatively well preserved, presumably died late, and the corpse had not had time to completely decompose. ”

"The she-beast brought back by this man should be the first queen in the nest!"

"No wonder, the ant wolf beast loves human flesh alone, it turns out that it is addicted to eating and inherited nature. ”

Thinking of this, some of the questions can be explained.

Why is there such a real yàn room hidden under the nest of the ant wolf beast, it seems that it is just that the only remaining female beast regarded this real yàn room as the original nest on the spot.

As for the dead real yàn member, I am afraid that he will also be devoured by the mother beast afterwards, and it is even very likely that this person died from the mother beast's backlash.

"It's just, why is it so weak?"

Xu Chen was not lamenting this real member, but he had doubts about this ant wolf beast that existed in ten thousand.

From the notes of this real member, Xu Chen learned that he had experimented with tens of thousands of pairs back then, but in the end, only the antwolf beast survived. And looking at the purpose of this real yàn member, I am afraid that I want to put this ant wolf beast into the outside world to survive, and then observe the number jù, and then transfer these real yàn number jù to people. The typical guinea pig goes first, and the human palace is behind the real yàn room road.

It's just that I didn't expect it to fail in the end, and the antwolf beast that was matched with all the hard work still failed to resist the toxins from the outside world. Eventually, the pre-stored aura of this real member was exhausted, and his body became weaker and weaker because of the excessive injection of toxins, and finally died tragically underground.

But even if it fails, how can this ant-wolf beast that has been brought out by so much hard work be so weak? and it will be too useless!

Xu Chen only learned the purpose of the antwolf beast from the words of those four people, and he also experienced the speed of the antwolf beast himself, not at all like a peerless lone product that exists in ten thousand!

Could it be that there is any other value of this ant-wolf beast that has not been excavated?

Xu Chen shook his head, puzzled.

"In this way, when the toxin first appeared, these cultivators still had a certain degree of resistance, unlike today, as long as the aura is exhausted, it will be immediately decomposed by the toxin, let alone inject the toxin into the body. ”

Xu Chen analyzed in his heart that such a conclusion is actually very consistent with the law of biological evolution. The cultivators who are hiding in the various realms now must have much worse physical functions than they did 10,000 years ago, so their resistance will definitely decrease. And the so-called toxins in the outside world have evolved for thousands of years, but I am afraid that they are getting more and more powerful.

"No wonder they desperately want to run outside!"

Xu Chen remembered what Monk Huineng had done, in order to go to space to explore the path, Monk Huineng sacrificed the aura of an entire large domain and buried hundreds of thousands of people. At the beginning, Xu Chen thought that Monk Huineng did this for his own pursuit of power, but now it seems that if they can't run out, they will be dead sooner or later!

"No wonder they sent an old monster from the infancy stage to arrest me!"

In the face of such an urgent crisis, it is not difficult to understand that the people of the Kunlun faction sent an ancestor in the infancy stage for Xu Chen.

"Toxin, what the hell is it?" Xu Chen circled back to the question he had been thinking about for a long time.

"They cultivators can't come out casually, and they have to bring an aura bracelet when they come out, but I'm obviously coming in now! If there's something in the outside world that they're not used to and I'm used to, then now that I've left that thing I'm used to, why don't I feel the slightest discomfort?"

Xu Chen pondered and meditated, but he still couldn't get it, but now he got more information, but in fact, there were more interferences.

I thought about it for a long time, but there was still no result.

"Forget it, don't think about it! Anyway, I'll have to stay here for a while, maybe I'll know later! Now, let's think about how to get out!"

Xu Chen walked back to the bones from the stone wall, and when he saw Yang Ziyun who was still unconscious on the side, his mood suddenly became much heavier.

It was almost the same as when I first met, the girl's face was still so bright, but now her face was a little pale, and her red lips were tinged with a touch of purple.

Reach out and rest it on the tip of the girl's nose.

"How can the breath be so weak?" Xu Chen's hand was on the tip of Yang Ziyun's nose for a long time, and he couldn't feel a trace of air flowing.

I felt my pulse again, and it was also weak and inaudible.

If it weren't for the fact that there was still a little temperature on his skin, Xu Chen would have regarded it as a corpse long ago.

"Alas...... Why do you want to jump off......

Xu Chen looked at the girl's good-looking face, stretched out his hand to brush a few strands of green silk behind his ears, and suddenly laughed, his smile was full of determination.

"The sound of water!"

When all the qi qi was quiet, Xu Chen suddenly heard the faint sound of running water.

Quickly picked up Yang Aster and walked along the sound of the water.

Xu Chen didn't notice that when he carried the girl on his back again, the girl's breathing had recovered slightly, and the purple on her lips had faded a little.

Following the faint sound of water, Xu Chen walked to the giant wall with Yang Ziyun on his back, put his ear on the wall, and listened carefully.

The sound of water is getting louder and louder!

"Is there a river on the other side of the wall?"

The sound of the water is loud, and it can penetrate this huge wall, it must be a big river!

"No matter! If you go back the way you came now, not to mention those ant wolf beasts, if you run into those people again, the two of you will definitely die!"

After making a decision, Xu Chen took out his last hand thunder, pulled down the pull ring, and threw it towards the edge of the giant wall.

Xu Chen did not forget the damage caused by the hand thunder just now, although he did not know the source, Xu Chen still subconsciously stood away from the giant wall.

"Boom" with a loud bang!

The huge wall, which looked more than ten feet high, was destroyed by only one hand and thunder!

This time, Xu Chen could see clearly, and huge cracks spread from the place of the explosion to the surroundings.

The detonation point was even blown out of a huge hole, the hole was very deep, and the stone wall that looked like it was more than a foot wide was blown up by a hand and thunder!

"Oops!"

Xu Chen found that those cracks were not just satisfied with the stone walls, but also began to spread to the curved dome and the ground.

"Damn, how can it be so powerful?"

This was Xu Chen's confusion about this question again, but this time it also didn't give him time to think.

Xu Chen didn't retreat, but advanced, and actually ran towards the deep hole that was blown out of the stone wall!

The sound of "whooshing" water finally penetrated the stone wall, and the flood swept away the stone wall full of cracks, and instantly swept Xu Chen into it......