After listening to Zhang Fatzi's words, everyone took a closer look, and judging from the situation painted on the mural, it was indeed very similar.

Reminiscent of what the old man Fu Shuangling had said before, the shape of this Loulan Wangcheng is like a big bronze bell, could it be that there is no connection between the two?

Zhang Fatzi couldn't help but ask: "If this Loulan Wangcheng was built to imitate the heavenly fire, then could it be that the so-called heavenly fire that fell from the sky would be the same size as this royal city?

Everyone was silent.

Old Man Fu lowered his head and pondered for a moment, shook his head and said, "The theory of heavenly fire has been recorded many times since ancient times. In fact, most of them are just strange stones flying from the sky, falling into the dust. When the sky fell into the sky, people at that time thought that the gods came to the world, bowed and worshipped, and established the ancient country of Loulan here. ”

"It is entirely possible that, out of worship, when the royal city was built, it was modeled in the shape of the heavenly fire, so as to show that the king who lived in it represented the will of the gods. As for the size of the heavenly fire, it may not really be that big. ”

After listening to Old Man Fu's words, everyone felt justified and nodded yes.

Xie Zhenliang then looked at the mural.

Unfortunately, the walls on which the fourth and fifth paintings are located have collapsed, and the murals have been destroyed, and it is no longer possible to see what is painted on them.

Fortunately, the last one is barely recognizable, and it shows a man with a feather on his head leading many people standing in the city cheering, and the city is actually flying in the air, all the way to the shining sun.

Listening to Zhen Liang's description, everyone felt a little incredible.

Old Man Fu thought for a while before saying, "It seems that this mural is the dream of the people of Loulan. They worship the sun, so the purpose of building this flying royal city may be to be able to fly them to the sun and meet the gods who live above the sun in their hearts. ”

"But after many years, it has never really been built. When the ancestor Fu Jiezi led the Han army into Loulan, the king of Loulan at that time, King Angui, saw that the situation was urgent, and in desperation, he forcibly activated the royal city, wanting to escape by relying on the royal city flying in the air. Unexpectedly, in the end, the royal city did not fly far before an explosion occurred and fell into the salt sandal, destroying the city and killing people. ”

Old Man Fu let out a long sigh: "Perhaps, this is the truth of the Loulan Flying City that the ancestors saw back then!"

After listening to it, everyone looked at me and I looked at you, looking at each other in disbelief.

What kind of skill does it take to make a royal city that can fly in the air? Even if it doesn't go far and crashes, it's far beyond the comprehension of many people.

To everyone's ears, this is almost like a myth.

For this strange and beautiful mythological story, Vice General Hao, who was born in the army, didn't seem to be very interested.

He was interested in something else.

At this moment, he stood in front of the two destroyed murals, intently observing something.

The wall carved with the mural has collapsed, but the inner layer is exposed, Vice General Hao reached out and touched it, the tentacles were cold and smooth, and a cold light flashed under the firelight, it was metal!

Hearing Vice General Hao say this, the mouse's face changed a little.

He stepped forward and reached out to touch it, and it was indeed metal.

He then commanded several sergeants to cut through the walls on all sides of the hall with the blades in their hands. Those ancient walls crumbled, revealing the inner layer with a metallic luster, all of which were cast in metal!

Such a magnificent hall, not only the dome, but also the four walls are all made of metal

How much iron does it take, how much manpower and material resources do you need?

Just when everyone was dumbfounded, Vice General Hao carefully observed these metal walls and said, "This is not ordinary gold and iron, it should be an alloy. ”

Everyone looked at him in bewilderment.

Adjutant General Hao said: "In fact, when refining weapons and utensils in the army, some other things are usually added to the muddy iron, which is somewhat similar to the method of smelting bronze in the ancients, which can increase the toughness of weapons and utensils, and is more wear-resistant than muddy iron." We call this method an alloy. ”

He stroked the metal wall in front of him and said slowly: "It's just that I have never seen such a metal, and it seems that it is not smelted mainly from iron at all, which is really unheard of." ”

Zhang Fatzi suddenly said: "This is simply impossible, in this vast Gobi Desert, where do the mineral deposits come from, and where can such a large amount of metals be smelted?"

At this time, Old Man Fu suddenly said: "It's not impossible. Don't forget, this royal city was built after the fall of the Heavenly Fire, when this area was not the Gobi Desert, but also rich in fertile water and rich in resources. It would not be surprising if there were any special mineral deposits under this yellow sand in the past. ”

The Heavenly Fire Falls? That was in ancient times.

If it is said that since then, the people of Loulan have mastered special smelting technology, wouldn't this be even more fantastical?

Although Zhang Fatzi did not refute it, he scoffed and shook his head.

To say that there was no metallurgical technology in ancient times, Ye Feng's heart moved.

He remembered the smelting furnaces by the tumbling hot magma pool in the secret cave of Huashan, and the legend that Fan Shanggu, the head of Huashan, told them that the ancient Chi was especially smelting and using gold as a soldier.

Perhaps, many truths in history are far from what we can imagine.

But even so, why did the people of Loulan use metal to build such a large hall in the first place?

Or could it be that the entire royal city was made of such metal, how much metal was needed, and what kind of skill was required?

Besides, isn't it even more difficult for such a heavy royal city to fly?

Thinking about it, I really can't figure it out.

While everyone was stunned, the Helian Tie seemed to have no interest in these ancient metallurgical techniques and the halls made of metal.

He walked around the main hall, walked over, pointed to the left side of the main hall and said to everyone, "Stairs." ”

It seems that he found the staircase that leads to the lower level.

Vice General Hao also said at this time: "Yes, we still need to reach the bottom as soon as possible, and finding the source of the dark river water is the top priority." ”

Ye Feng nodded, compared to this mysterious hall, he was more anxious to find the dragon-shaped mark in the mouth of the old man Fu that was exactly the same as the dragon pattern on his back.

At least, in this hall, he didn't find it.

So everyone left the hall down the stairs and went down to the second floor.

According to what Old Man Fu said, the second floor should be the dormitory where King Loulan and his concubines live.

However, the damage to these two floors is much more serious than that of the main hall above.

Everywhere there were crooked columns and crumbling walls, blocking the passages, and it seemed impossible to get to the bottom of the floor.

It is rumored that Loulan Angui is the king, this person is extremely greedy, and has collected a lot of gold and silver treasures, presumably his bedroom should also be very magnificent.

The purpose of Ye Feng's trip was not to hunt for treasures, so they wanted to come to the dormitory except for some gold, silver and jewelry, there was nothing too worth exploring.

What they needed was to get down to the bottom as soon as possible and find the water of the dark river, and the drinking water was better for them than any gold and silver treasure.

Following the stairs, they continued towards the ground floor.

However, they soon became disillusioned and the road was not working.

A large hole had been broken in the wall next to the staircase leading to the ground floor, and some huge stones had broken the staircase from nowhere, blocking the way down.

These rocks are huge and numerous, and the passage is so full that there is no hope of digging and dredging it.

Everyone suddenly felt a deep disappointment in their hearts.

Where did all these huge rocks come from in the desert? Why didn't quicksand pour in when the walls were torn through big holes?

Ye Feng and the others felt very strange when they looked at these stones.

Just when they were puzzled, a cool breeze blew faintly from the hole, and the flames of the torches in everyone's hands flickered.

The rat who was walking in front of the team suddenly changed his face, and he jumped over with an arrow step and jumped before the hole.

The hole was more than a man tall, wide enough to accommodate four or five people standing side by side, and it looked like it had been smashed by the influx of boulders, and the inner layer of the thick fracture also shone with a cold metallic sheen.

Sure enough, it seems that the inner walls of the entire Loulan King City are all made of such strange metal!

What a huge project, what kind of superb craftsmanship is this, when did these Loulan people start to build such a royal city, and where did they master such a jaw-dropping level of technology?

What's even more strange is that if the Loulan people had mastered such a powerful technology, how could they struggle to survive between the Xiongnu and the Han Dynasty back then?

You must know that such a level of technology has long surpassed all countries at that time, and even the Ming Dynasty more than a thousand years later is completely beyond the reach of the dust.

While everyone was still amazed by the incredible technical level of the Loulan people, the rat poked out of the hole in the wall with a torch to check outside.

After a moment, he exclaimed, "Come and see, what is this?"

His voice was very empty, and there was a faint echo, as if it was in an extremely empty place, everyone felt stunned, it stands to reason that this should be under the desert, where would there be such an empty place?

Everyone walked over with torches, and the scene outside stunned everyone.

Beyond the hole, I saw a huge black cavity.

Reflecting the light of the torches in their hands, above their heads, there was a strange rocky layer, the height should be between the second and third floors of the royal city, like a roof covering the entire space, presumably above the rock layer was the vast yellow sand.

The cavity beneath this rock layer was so great that by the light of the torches in their hands, they could only see a deep darkness, and they could see nothing at all.

How could there be such a place under the desert?

What is this huge black cavern?

Could it be the legendary hell?

A cool yin wind faintly blew in from the mouth of the hole, and the fat man Zhang who was standing at the mouth of the cave shivered all over his body, and a strange scream occurred in his mouth.

There was also a faint echo from the deep darkness outside, and it sounded like a ghost screaming: "Ah~~~!"