In this case, how do the current humans know that there was such a smelting technology in ancient times?

It can be glimpsed from some oral legends or historical materials.

In many myths and legends in our country, the gods and goddesses will be ever-changing, for example, Sun Wukong plucked a monkey hair and blew a breath, which can instantly change into another identical Sun Wukong, and there is a strange record about Chiyou the Great in the history books.

The text goes something like this:

Chiyou and the Yanhuang tribe fought inextricably, and the Chiyou army once took the lead, because Chiyou found his eighty-one wolf-like brothers, each of his brothers could defeat the Yanhuang tribe for a while.

This historical description is very clear, these eighty-one brothers of Chiyou are brothers who "share heaven and earth", and in today's words, they are the same father and mother.

Although family planning was not practiced in that era, it was impossible to have so many brothers anyway, so most historians believe that this written record was fabricated by later generations. Ma Huadong and Xue Chuanqiang made another explanation after studying some of the Dongyi people to which Chiyou belonged.

The so-called eighty-one brothers are actually the eighty-one Chiyou who are conjured.

In history, Chiyou is known as the "God of War", if there are eighty-one such at once, how can the Yanhuang tribe fight this battle?

The two of them continued to talk about this topic.

According to their analysis, the Dongyi tribe where Chiyou belonged at that time used a certain technology to "copy" eighty-one Chiyou. There is also such a description in the original text, these eighty-one brothers of Chiyou are all bronze arms and iron arms, not only invulnerable, but also infinitely powerful, and can easily tear a person apart.

Of course, historians today also regard this passage as "apocryphal".

Ma Huadong analyzed that the copper arms and iron arms described here were objective descriptions of what people saw in front of them at that time, and what they saw should be soldiers wearing metal armor, and at that time, the so-called metal was actually equal to bronze.

Speaking of which, it is in line with what they said before that the ancient Dongyi tribe mastered superb bronze smelting technology.

In the afternoon of the same day, Yang Jianqiang called a few of us young people from the water conservancy station and handed us 50,000 yuan and a piece of paper: "The place I went to this time is more special, and some things are more practical for the people. ”

Tian Zhen happily took the paper, glanced at it, and promised with a smile to ensure that the task was completed.

Driving to the largest hardware and building materials market in Hekou District, I learned that Yang Jianqiang let us buy nylon rope, a diameter of 3.5 centimeters of steel bars, and a special note, let us cut the steel bar into 60 centimeters, a total of ten, each end of the grinding point, in addition to the need for tarpaulins, construction clips, waterproof clothing, etc., see the last thing, we all laughed.

It turned out to be ten large boxes of Durex.

"Is this going to investigate or to pick up girls?" Tian Zhen grinned and leaned back.

Yu Jin also covered his stomach and laughed into tears: "This can't be a mistake!" ”

I also think it's ridiculous, but when I think of Yang Jianqiang handing us money and paper, I don't think I'll be mistaken.

What other use does this thing have than for men and women going to heaven together? I suddenly thought of the foreign "Desert Island Survival" program, and I remember that Ade wrapped his mobile phone with this thing, and it could still be waterproof on his feet...... So he corrected the dirty ideas of the two.

Seeing that Yang Jianqiang didn't buy many things, but the requirements he wanted were very detailed, all specific to how big, thick, and even what brand, the servants ran all afternoon, and they finally bought all the tired backache and leg pain.

Yang Jianqiang also stayed at the water conservancy station that night, and in his words, he wanted to take advantage of the last two days before the departure to popularize some knowledge for us.

After dinner, he called me, Wu Jinghan, Yang Huiling, and Han Jianli to the office.

Yang Jianqiang sat beside the four old men and Yao Liguo, each with a serious expression on their faces.

"This expedition is a mission, and it is very dangerous, even ...... Even one or more of our fifteen people might stay below. ”

Han Jianjian said "ah": "What are you staying for?" ”

Yao Liguo glared at him: "It's just death below!" ”

Han Jianli had always been afraid of Yao Liguo, and when he scolded him like this, he quickly stuck out his tongue and closed his mouth.

Yang Jianqiang continued: "The matter has come to this point, I must tell you some information about the underground space I am going to this time......

He spoke for a full hour and a half, starting with the fact that Soviet scientific expedition personnel were frightened crazy in the 50s and 60s, when this place had already attracted the attention of the Yellow River Military Region, and two groups of scientific expedition teams were organized to find out.

Of course, the first time these two expeditions failed, and the second time they also encountered an accident, and finally the results of the scientific expedition were stolen, but these two expeditions left important first-hand information.

As he spoke, Yang Jianqiang took out two brown paper envelopes, and I recognized them at a glance, which were things that Wu Jinghan's grandfather hid in the black box.

Inside one of the envelopes was a hand-drawn map, the paper yellowed, but the lines and text on it were still clearly marked.

On the top side of the map are a few beautiful italicized characters "Topographic Map of Nine Springs", which Yang Jianqiang explained refers to the underground space located under the Yellow River. Yang Jianqiang also added that in fact, the discovery of underground space was recorded in the local Qing Dynasty Daoguang years before the county governance.

He had already told me about it that day.

Hearing this, Han Jianjian, who had been holding back for more than twenty minutes, couldn't help but speak again: "Such a large underground space, it shouldn't be dug manually, right?" Could it be that the ancient Dongyi people lived underground? ”

Yao Liguo wanted to scold him again, but this time he was stopped by Mr. Wu.

"Brother Xiao Han's question is actually very good! We've been thinking about it for a long time, but we can't give you an answer yet. Mr. Wu kindly straightened his glasses, and continued, "Lao Song and I have been discussing this matter for several weeks, and even quarreled a few times, we guess that such a large underground space, not to mention the ancients, is almost an impossible task to use machinery and equipment now." ”

Professor Song continued with Mr. Wu's words: "So we guess that the underground space under the Yellow River should be natural, and then it has been artificially modified, as for the use!" There was a big difference of opinion between the two of us. Mr. Wu believes that this is the hiding place of the ancients, used to escape the cold and heat, or the attack of fierce beasts, and even some natural disasters that we can't imagine, I think it is a place to hold sacrifices, in other words, it is the holy place of the Dongyi people. ”

Professor Song smiled bitterly, stood up slowly, picked up a cigarette from the table, took out a cigarette, took a deep breath, and said slowly:

"The reason why I insist that it is a sacred place of sacrifice is because I have stepped into that place before, and the experience at that time is still vivid in my mind, it is definitely a strange place, there were a total of eighteen people who went down to the cave together, and in the end, only me and Li Guozhi returned to the ground alive......"

Professor Song took a few puffs of his cigarette, the expression on his face distorted slightly, as if he was lost in thought.

"Several! Let Professor Song talk about their experience after entering the underground space, you have to listen carefully! This was bought with the blood of the predecessors back then. Yang Jianqiang interjected appropriately.

After Yang Jianqiang finished speaking, several of us fixed our eyes on Professor Song's face, but he kept looking out of the door until he smoked a cigarette before he slowly spoke.

The lineup of the scientific expedition team was also very strong, with both special police officers who could reach out, archaeological experts like Professor Song, and professionals like Li Guozhi, in short, the lineup was very strong.

One thing needs to be explained is that at that time, these people were actually used by the big man behind the scenes, under the banner of contributing to the country, so most of them didn't know each other, and Li Guozhi and Professor Song also met later, which also explains that there was my father in the team at that time, but Professor Song and Li Guozhi didn't know.

They always thought that all the eighteen people at that time were dead except for him, but in fact, my father and several other people also hid at that time, and only escaped from the underground space with half their lives a few days later.

According to the information left by the previous expedition, they found an underground cave on the east side of the Yellow River that was pressed by large stones, and entered a long tunnel smoothly.

At first, the tunnel was not wide, barely able to accommodate a truck, but after a few hundred meters, it became wider and wider, and the traces of artificial excavation on the cave walls became more and more obvious, and some of the cave walls had strange symbols.

After walking along the tunnel for more than two hours, they could feel that the tunnel was gradually descending, and they entered a strange place. At first, Professor Song thought it was an ancient tomb, where the lights shone, there were many stone figurines, both human and animal, and ceramic shards could be seen everywhere on the ground, but after walking in for a few minutes, they realized that something was not quite right.

It is said that even the emperor's mausoleum is only a few thousand square meters, but they have walked 500 meters in the past few minutes, and they still can't look at it, and the more they look at it, the more it looks like an ancient tomb.

After walking for a few more minutes, the space was not only endless, but also wider, with small dark brown bumps growing on the ground, which should be plants, and the sound of rushing water was heard in the darkness in front of me, and the thick smell of sulfur in the air.

There was a geology expert in the team, he called out to stop the team, then crouched down and pried up a stone chip with a dagger, as if he put it in front of his eyes, looked at it carefully, smelled it again, and then told everyone that this was probably a crack in the underground rock formation formed by volcanic activity.

At this time, everyone had a common question in their hearts: the entire radius of several hundred miles is not a volcanic activity area, and there has never been a record of volcanic activity since human civilization.

The key is what kind of place it is, and who has lived here.

The expedition team continued to walk forward with doubts, the more they walked, the more they wondered, the more they had question marks in their minds, they walked like this for about ten minutes, and there were some strange buildings in front of them, which looked like a small stone mountain formed naturally, and looked carefully like a building repaired by human beings, like ancient human remains, which was a once-in-a-lifetime opportunity for an archaeological expert, so he quickly took the team over.

Who knew that they had just approached, and in the darkness they didn't know where something strange came out of which they couldn't see whether it was a person or a monkey, and rushed into the crowd to bite and bite, the scene was extremely tragic, and Professor Song was also bitten and fainted.

He remembered waking up in a state of dizziness and finding himself lying in the arms of a man, surrounded by darkness.

"Shhhh......h

He was about to speak, when the man holding him whispered in his ear.

Then his consciousness blurred again, and when he woke up again, he found himself in a hole, with a fire burning on the side, the flames turned yellow, and under the light of the fire, he saw Li Guozhi with a tired face.

This is the second time that the two of them have spoken after participating in the expedition, to be precise, it is actually the first time, and they just said hello before.

Li Guozhi told him that the rest of the team were all dead, and that he had escaped by hiding in a building, and then waited until there was silence for a long time before he came out quietly, and happened to see Professor Song who was still breathing.

Professor Song was also bitten by the mysterious creature, Li Guozhi carried him to a strange building nearby, at this moment he didn't care whether he was dead or alive, seeing that Li Guozhi was dying, he was so anxious that he was like an ant on a hot pot, and in a panic he saw a stone table carved with strange patterns on one side, and a bronze box was placed on the table, which was similar in style to the metal jewelry boxes used by the ladies in the costume TV series.

All this made Li Guozhi feel incredible, and the first thing that came to his mind was the classic clip in martial arts films: there are often panaceas hidden in deep mountain caves. Of course, all this is very dramatic, probably this is the so-called no coincidence is not a book!

He was hesitating to go over and get it, but at this moment, a strange sound of "woo" came from outside again, which frightened him to pick up Professor Song on his back, put the iron box in his backpack casually, quietly left the door, and ran wildly in one direction with his intuition, until he ran out of breath before stopping.

Sitting on the ground panting, Li Guozhi took out the box, only to find that the box was very rusty, the whole body was black and brown, and it had rusted into rust lumps.

Li Guozhi took out the dagger from his bag, tinkered with it for a few minutes, and really opened the box, and found that there were more than a dozen black particles inside, each of which was the size of an adult's thumb nail, and he put it in his nostrils and smelled it, and there was a pungent smell of Chinese medicine.

His instincts told him that it might be some kind of medicine. At that time, he was purely ill and rushed to the doctor, looking at Professor Song who was dying next to him, he immediately made a decision, took out one and stuffed it into Professor Song's mouth, and then poured him a few mouthfuls of water.

After getting these things done, he also rested, his attention was almost all around, and he faintly heard the sound of Xi Xisuo in the distance again, his heart trembled again, and he quickly picked up Professor Song again and ran forward, this time with all his strength, running straight until his legs were weak before stopping.