The vast majority of human beings have a strong nostalgia for their hometown, and they will never leave their hometown until they are forced to leave their hometown, and they will try their best to return to their hometown after traveling far away for a long time. Pen, fun, and www.biquge.info

But the Sumerians did not return to the underworld until they perished, why is that?

Is the memory of the catastrophe in the underworld so terrible that they don't have the courage to return home? Or is that horrible thing that has always been in the ground, leaving them with no way to go back?

Looking at the ancient village in front of them, which was as silent as death, Zhu Yan and Chen Lan's hearts suddenly gave birth to a trace of vigilance, and they decided to search this village carefully, not letting go of any details.

Starting from the temple, they cleaned and searched room by room, sparing every nook, every utensil, every stone, and even every pile of dust.

Zhu Yan and Chen Lan quickly found a tunnel under the temple, which led to a secret room inside the pyramid. On the walls of the secret room, there are some human figures with qi routes, and there are also some cuneiform carved texts next to them, which seem to be the secret book of some kind of cultivation method.

Zhu Yan tried to follow the qi route drawn on the graph, and soon found that without opening the aura vortex, the speed of cultivation in this way could be accelerated by two to three times, which was very suitable for the cultivation of ordinary cultivators on the earth.

The two of them glanced at each other, quickly exchanged ideas, and then they both took out pens and paper, divided labor and cooperated, and copied down the cultivation graphics and texts.

In those collapsed houses, they did not gain much, almost every house was empty, and even the living utensils were difficult to see. They searched more than 100 houses, but found only two damaged iron farming tools and a bronze vessel with a missing corner, and nothing else.

Obviously, the underground humans in the ancient village migrated away in an organized manner, and the disaster did not happen instantaneously. So, what was the disaster that forced them to leave their homes?

Unfortunately, they searched all the rooms and did not find a single skeleton of an underground man, leaving them with no idea exactly what happened at the time of the disaster.

"Perhaps, we should go to the cemetery, there are bones of people underground!"

Chen Lan suggested that she felt that a disaster would inevitably kill people, and since it was not a sudden disaster, then the body would be properly buried.

Zhu Yan immediately agreed to her proposal, in fact, only the bones buried in the soil could be turned into fossils in tens of thousands of years and thus preserved.

They closed their eyes, released their senses, and scanned out of the village, where they soon found a small hill with lush vegetation and many fossilized bones under the thick layer of soil, which was the village's cemetery.

Pulling away the dense vegetation on the small dirt slope, they found large pits, as well as some scattered mud slabs. After all these years, these graves fortunately did not sink into the ground, otherwise they would not have been able to dig them.

The two worked together to dig through the thick layer of soil, revealing pieces of scattered fossilized bones. Most of these fossilized bones are short and thin, some have been broken, and the teeth are small and pointed, with little wear and tear, and they should all be small children. Next to the bones, there are usually bracelets and necklaces made of gold, silver, and jade, which can be imagined as the grief of their parents at that time.

"Why are all children dying?"

Zhu Yan was holding a fossilized leg bone, and when he was contemplating and thinking, he suddenly found that his skin was tight, and something seemed to have entered his body.

He was taken aback, and immediately opened his "inward-looking eye", only to see many small black dots pouring out of the skeleton and into the tissue cells of his right arm.

These small black dots are very multiply, and it doesn't take long for them to destroy these cells and divide into more small black dots that continue to invade other tissue cells.

The matter was urgent, and while he was warning Chen Lan, he ran a spiritual cyclone, injecting powerful spiritual energy into the organization that was invaded by the small black dot.

With the influx of aura, the tissues invaded by the small black dots were finally controlled, and the damaged tissue cells were quickly repaired, and those small black dots that invaded were also surrounded by powerful aura clusters, and they could no longer move for half a minute.

Zhu Yan immediately gave another order to end the battle, and those spiritual qi quickly broke through the outer wall of the small black dot and invaded the inside of the small black dot. With the help of the "micro-method", he clearly saw the internal structure of these small black dots, which had no cell structure at all, and looked like a virus.

Under the control of his mind, the aura that entered the small black dots was destroyed everywhere, and after a while, all those little black dots were finally shattered and died, and Zhu Yan breathed a sigh of relief.

When he came back to his senses and examined the fossilized bones with the "subtle method", he found that there were indeed many tiny black dots on them. They appear motionless and seem to be dormant, but will immediately revive as soon as something living touches them.

It's supposed to be a virus, yes! In the classroom, the biology teacher once said that some viruses have a long incubation period, and can even be resurrected after thousands of years, and some viruses can sleep in extreme environments and wake up when the conditions are right.

This virus is really terrifying, if Zhu Yan didn't have enough aura to kill them, it is estimated that in less than half a day, they should completely invade his body.

"Oh, I see!"

Chen Lan and Zhu Yan woke up almost at the same time, and it turned out that there had been a prehistoric biochemical crisis here. No wonder these graves are buried with children, that is, children's cultivation is generally not high, and they cannot resist the invasion of these viruses! It's no wonder that the entire village has to move their families, and only by avoiding these invisible killers can their race multiply!

"Let's burn these bones so that no one else can get infected."

"Okay. I wonder if these viruses can be spread through Warcraft? If it were, then the place would be completely uninhabitable. ”

"No, otherwise there would have been no Warcraft around here for a long time, and Warcraft should also be resistant to the virus."

……

As they exchanged views, they gathered the bones together with branches and prepared them to be burned.

It was then that they noticed another detail, many of the children's bones had been shattered, as if they had been broken before they were placed in the grave.

Among them, eight fossilized skulls were severely fractured, apparently directly broken by a heavy object. There are also more than a dozen fossilized skeletons with broken arm bones and leg bones in multiple places, as if there was a violent fight before death.

This is not normal! Judging from the rich funeral goods, they were definitely loved by their parents during their lifetime, how could they be added by other people's swords? Moreover, is it still that ruthless?

Everything is strange, this place does not seem to be a safe place, before figuring out what happened, Zhu Yan would never dare to let Teacher Chen and them come here to practice easily.

After burning all the bones, Zhu Yan and Chen Lan did not leave immediately, they unfolded their divine senses again, and carefully searched the area of these hundreds of miles in a radius until they turned out every piece of human and animal bone fossils and burned them with fire.

There is no sun and moon in the cave, I don't know how time passes, and a few hours of time are tossed and turned around by them like this, and they are quietly lost. Fortunately, the vegetation here is luxuriant, and the Heaven and Earth Yuan Qi has been absorbed and purified to a certain extent, so that they can stay for such a long time without feeling any discomfort.

The two of them were meditating cross-legged to recover their depleted aura, but before they could fully recover, the anxious calls of Teacher Chen, Master Fang's mother and others came from the mental space, and it turned out that they had been leaving the base for a whole day and a night.

Teacher Chen, they haven't opened up the mental space yet, so the current psychic communication is only one-way, and Zhu Yan can't tell them the situation in the cave.

"It's time to go back, now that you know the route, I'll come back next time. However, before leaving, you must collect at least one of the elixirs of enlightenment and rebirth. ”

The two had a similar mind, so they quickly made a decision, they took some metal products and all the clay tablets, and Zhu Yan had no choice but to make concessions to the elixir formula that Chen Lan insisted on.

Although the Jiuzhi Returning Spirit Grass has not yet been found, there are too many elixirs here, and Chen Lan can at least find the formulas on the three Awakening Elixirs, so there is no need for Jiuzhi Returning Spirit Grass for the time being. The elixir on the rebirth potion is easier to find, there is no problem in finding dozens of formulas, all it takes is more time.

The two of them stayed in the cave for more than two hours, until they found three Awakening Recipes and five Rejuvenation Formulas, and then set off to return. In the process of looking for medicine, they were always on guard against the attacks of the demonic beasts, but the strange thing was that when they easily killed a wind demon wolf, all the demonic beasts hid away when they saw them, and they never encountered them again.

The journey home was relatively easy, at least they knew the danger ahead, the only trouble was that the heat of the magma tunnel was blazing, but now they were full of aura, and they were not afraid of the impact of those violent and evil vitality.

When passing through the mouth of the tunnel, they took back the Illusion Flying Snake materials that were originally hidden in the cave wall, and regarded them as gifts for the friends in the base!

When the two finally got out of the volcanic tunnel, the sky outside had just brightened, and the morning light on the distant mountains was unpredictable in the thick fog, as if someone was painting an abstract oil painting.

The Raven had been waiting at the entrance of the cave, and it didn't seem to be in a hurry to Zhu Yan's sudden disappearance, and seemed to be used to trusting the two humans in front of it.

So, Zhu Yan and Chen Lan drove the crow, with the huge gains of this exploration, and flew towards the direction where the base was located......

(Urgent help, collection, recommendation!) Without further ado, you get the idea. ）