Li Xun suddenly turned his head with a silent gesture, which made everyone nervous.

All of them silently carried large-caliber rifles and howitzers, and there were also two by two cooperating in loading rocket artillery.

Everyone became suspicious at the same time.

Li Xun squatted down by the river, took a handful of water and tasted it in his mouth, got up and said, "This is its old nest, definitely." ”

"It's ......"

"We're here?"

“……”

Everyone was excited, and if it wasn't for the time, they would have cheered.

After going through hardships and almost dying in the Cave of Lost Souls, isn't it just for today?

Li Xun nodded and said, "There is a very strong smell of it here, and besides, I smell the smell of the dead." ”

"Dead again?"

Everyone couldn't help but think of the last section of the grave in the Cave of Lost Souls, and they were still a little apprehensive.

The old cow squatted down with his hand, which was simply bandaged, and someone handed him the radar in front of him.

Lao Niu used his remaining left hand to operate for a while, and said with difficulty: "This is Dragon City, according to the direction, we are actually above all the cobweb-structured caves. ”

"What do you mean?" said Old Xu.

Professor Niu said: "Before, we have been using radar to look for Dragon City, but all we see are messy spider web-like cave routes, and we can't find the shadow of Dragon City at all. Now I get it, because they're not flat at all. For example, if this is a building, then the Cave of Ecstasy is on the first floor, and Dragon City is on the second floor. ”

"We kept exploring the ground floor, visiting all the corners, and only exploring the space on the first floor. Only by finding the staircase to the second floor can we enter another different space. The first floor is the Maze/Soul Cave, and the second floor is the Dragon City. ”

Lao Xu frowned and said, "Is Dragon City closer to the surface?"

Lao Niu shook his head: "I don't know, if you want to find out the secrets here, unless you open up this layer of land and let the truth be revealed, it is absolutely impossible." The environment here is so complex and the geology is so special that a lot of our instruments are out of order here. ”

Everyone nodded thoughtfully.

Lao Niu pointed to the screen at this time and said: "It can be seen that we are now in a large underground space with an average height of 30 meters and an area of about 500,000 square meters. And when we were on the surface, we made a mistake in judgment. ”

Li Xun also came over curiously: "What a mistake?"

Lao Niu pointed to the display screen and said: "When I was on the surface, I said that there was a modern city below, because the reinforced concrete structure was detected. ”

Li Xun said curiously: "Is there a problem with the instrument?"

Lao Niu smiled and shook his head: "No, I finally know the meaning of the existence of the people of Xujiashan Village here." ”

"What is it?" Lao Xu also came over.

"If the ditch village that Xu Qianyun guessed was once a village guarding the periphery of Dragon City, then Xujiashan Village is actually a bricklayer, more like another organization that does repair, maintenance, and after-sales work in Dragon City. ”

When everyone heard this, they shone a strong flashlight on the top of their heads, and their eyes suddenly widened at this look.

However, I saw that the roof of the entire very high karst cave was full of various steel beams and cement pillars, which were scattered and scattered, just like a construction site.

But from a professional point of view, the structure is very sturdy.

Xu Qianyun exclaimed: "This cave is about to collapse?"

Lao Niu nodded affirmatively: "From the perspective of geography and physics, it is impossible for such a large karst cave similar to karst terrain to be found in granite terrain.

Even if there were a flood of this magnitude during the Ice Age, it would not be long before it would have turned into a sinkhole, and the granite ground above it was solid, but it was too large and covered too wide. When the area is large, the weight is large, and it is easy to collapse. ”

"So, this cave shouldn't have been so big in the early days.

Such a large space should all be artificially excavated and continuously expanded.

I guess the reason for the expansion is to be able to fit the castle. But the downside of this is that it destroys the natural structure of the cave, making the space more fragile. ”

"The people of Xujiashan Village found out about this problem, so they brought building materials here and started maintenance work. The method of using reinforced concrete beams and pillars and compacting the roof wall with cement to extend the time of the collapse and fill the life of the dragon city. ”

At this time, Lao Xu spoke: "I make an irresponsible guess, the force that can build such a large project comparable to the Mausoleum of Qin Shi Huang is definitely not a short-lived civilization force in Chinese history."

It must have been the involvement of a very powerful royal family to mobilize such a large project.

This dragon city has great archaeological value in the history of the world, so I ask everyone not to harm this ancient city if you fight. ”

Li Xun nodded and said, "I'll try my best." ”

Then, he grabbed the bow and walked in the direction of Dragon City, and said: "It's back in the water, wait for it to come up, it's a few hours fast, a day or two slow, and it will definitely come up to breathe." ”

When everyone heard that the big snake was not in Dragon City, they couldn't help but breathe a sigh of relief, and happily followed Li Xun in the direction of Dragon City.

As the group slowly approached, the appearance of the entire dungeon gradually entered everyone's eyes clearly.

This is an ancient city with a slightly strange style.

At a glance, you can see that this building has some Han and ancient architectural styles, but there are obvious characteristics of a few famous ethnic groups in it.

From the outside, the dragon city as a whole is like a kind of miniature version of the palace, the imperial city, the inner city, the outer city, the triple city wall is clearly outlined, the palace Qionglou rises and falls, endlessly, the palace is towering like a beast dormant, and the jade tile of Qionglou is wonderful.

The most important thing is that there are many pagodas in this quaint city.

The white wall powder and the golden spire are not like the Han style.

Captain Zhang, who knew something about the history of the Khitan, took a look at it and concluded: "This is a building from the middle and late Khitan period."

The Khitans were nomadic in the early days and did not focus much on building houses.

Later, after the founding of the People's Republic of China grew, it was also necessary to do face engineering, but there were no skilled craftsmen to specialize in design, so they learned from other nationalities.

Therefore, the architecture of the Khitan people has become very eccentric, imitating the architectural style of the Song Dynasty and building buildings, but they will add their own cultural characteristics to it, that is, Buddhist temples and pagodas. ”

Everyone looked at Captain Zhang in surprise, but they didn't expect that in addition to knowing some ancient Khitan characters, he also knew some history of the Khitan nation, which was seriously inconsistent with his image.

But what he said should be correct, all of this points to the fact that this underground site is likely to be an unknown secret base built here by the Khitan tribe, or the glorious Great Liao Empire in history. (To be continued.) )