The group went back the way they came.

Just halfway through, Li Xun's footsteps suddenly stopped, closed his eyes and took a deep breath, stunned on the spot.

Lao Xu knew Li Xun's special ability, and Lin Qingshan and others had also seen it, and they all gathered around, thinking that something had happened:

"What's wrong?"

"Do you smell something?"

“……”

After a while, Li Xun opened his eyes and said with a smile: "An old friend is here, let's go meet it." Don't shoot, even if anything happens, don't shoot. ”

Everyone is confused, what do you mean?

Why warn the crowd not to shoot in advance?

Seeing Li Xun walking towards the manor with Xiaobao first, everyone hurriedly followed.

When he arrived at the gate of the manor, Li Xun did not enter the manor, bypassed the gate and the wall, and walked straight to the top of this hill.

This manor is built on the mountainside, occupying half of the mountain. But in fact, the top of its mountain, which everyone has not yet visited, is just a wasteland.

At this time, seeing that Li Xun did not go to the manor, but went to the top of the mountain, he was even more puzzled.

Lao Niu arrived at the gate of the manor, turned on the ground penetrating radar, and after a while, frowned and said, "No, there is not even a dungeon here." There's dirt down there, there's no space. It seems that our idea is wrong, the entryway is not here at all. ”

After Lao Niu finished speaking, he handed over the ground penetrating radar to a few soldiers to push it, and when he saw Li Xun walking to a higher place, he also clapped his hands and followed, wanting to see what he found. It is said that this strange man has a very sensitive nose, and according to expert Xu, it can smell the breath of molecules in the air.

A large group of people and horses began to climb the mountain.

And it is worth saying that this hill does not look big, but it is very steep. There are no roads, just barren mountains, and there are not many turf and trees.

After walking a few steps, Expert Xu bent down and knocked on the ground with a chisel hammer a few times, and said in surprise: "Hey, this mud is actually granite underneath." ”

"What?"

A group of old experts were shocked. They used small hammers to break through the dirt and hit the rocks beneath it.

The sound of 'ding ding ding' kept coming, and Lin Qingshan, who didn't understand, was shocked to see it, but he saw that the small stainless steel hammers were hitting on it, and the sparks were popping up.

Everyone was stunned, isn't this a dirt mountain? Why is it all granite under the dirt?

Lao Xu gasped: "I understand, this whole mountain is actually granite." The dirt on the top was just formed after a long time and was covered with dust brought by wind and rain. I'm afraid this piece is all granite veins, if it's really a granite area, Lao Niu said that there is such a big underground palace below, and it won't collapse. It makes sense. ”

Professor Niu was stunned for a moment, and then quickly nodded: "Yes, that's the truth." If this entire mountain range is a granite area, not to mention that there are more than 200,000 square meters of underground palace below, even if it is a million square meters, it will not collapse. Moreover, the underground palace is two hundred meters deep from the surface, and the granite with a thickness of two hundred meters is covered. ”

Not only does it make people feel the magic of nature.

Granite, an extremely hard rock formed by magma eruptions caused by crustal movements, has formed karst landforms underground. The strange and complex terrain and karst caves underground, which are almost indestructible by manpower, have been penetrated by the power of nature.

It's magical.

Lin Qingshan frowned and said, "Your ground penetrating radar can't even detect granite, is it reliable? You also said that there is a dungeon below, how did you find out? Could it be that this electric frequency signal can also penetrate granite with a thickness of 200 meters?"

Lao Niu explained: "The electrical frequency signal is not the same as ultrasound. Ultrasound can't penetrate these rocks, but close-range electrical signals can. No matter how hard the rock is, it's not as dense as you might think. And it can't be all granite-covered, there are always dirt areas. The most important thing is that you think too much of this radar. It can peek out into the ground, but it's not so good at distinguishing rocks. If there really was such a radar that could even distinguish the types of rocks, the world's veins would have been wiped out long ago. ”

Anyway, Lin Qingshan couldn't understand these professional things, so he asked again: "Then how do you know that there are concrete and steel bars underneath?"

"The difference in the type of rock is not big in the eyes of the radar. But concrete and rebar, the obvious man-made products, are very different from the rocks and dirt found in nature. It's very easy to tell. For example, it's like the rocks are all red, with deep red, pink, light red, bright red, and brilliant red. How can you tell so much red out of a patch of red?"

"Reinforced concrete is different, they're green. You can't pick red out of red, can't you pick green out of red? That's the reason. ”

After Lao Niu finished speaking, he became a little excited: "The terrain here is really unique, no wonder Li Xun said that the Crouching Tiger, Hidden Dragon here is really different from other places." ”

At this time, Lao Xu exclaimed: "Then if this mountain only has a thin layer of soil, how did those houses be built? Don't you want a foundation? The bottom is full of granite, how did they dig out the foundation." ”

But Li Xun turned around at this time, pointed to the dead manor villas all over the mountains and said, "Don't have a foundation." It's all a sample. You don't believe you're going to kick that wall and try it. ”

When Lin Qingshan heard this, he immediately stepped out, looked at the wall of this manor, which was more than three meters high and hundreds of meters long, and shook it fiercely.

But I saw that this foot fell, and the entire wall was swaying!

This really shocked everyone, really don't want a foundation? Such a high, such a long wall, Lin Qingshan actually kicked and swayed? Wouldn't that be a torrential rain, and it would even be possible to wash all the houses of such a large area to the bottom of the mountain?

Sure enough, it's for the dead.,It's a building for ghosts.。

These places are not suitable for these brick houses, but they are suitable for rammed earth houses, that is, the mud houses of the former ditch village. The clods are made up of rammed earth, clinging to the ground, and the stickiness of the soil and the soil work as steadily as Mount Tai.

The group continued to walk up in amazement, and the more they thought about it, the more they felt that this piece was really weird and there was no way, and not even a small detail could not be explained by common sense. Everything is abnormal.

When he reached the top of the mountain, Li Xun stopped, holding the giant bow in his hand, but he did not draw the arrow.

Just smiled and looked at a huge pine tree on the top of the mountain, this pine tree has withered yellow branches and leaves, and at a glance it is a dead tree, and the eight achievements were transplanted in the later stage. Also, on the granite, how can the pine tree live?

"Long time no see. ”

Li Xun looked at the pine tree and shouted.

Everyone was stunned at first, who were they talking to? looked carefully at the pine tree, but they didn't think it was surprising.

But in the next second, a soldier screamed with a pale face: "Snake, snake, big snake!"

Everyone was shocked, and then they saw that it was not nothing. On the branch of the pine tree hung an upside-down head of a snake, which was so large that it was bigger than a bull's head.

It hung upside down and motionless, and everyone thought it was a tree trunk.