Boom!

The entire underground space shook.

The * detonation carried by Wei Xingshan actually caused a small earthquake.

This result was obviously unexpected by Wei Xingshan.

No matter how big it is, it's an enclosed space, and this kind of earthquake is extremely scary, giving people a feeling that there is nowhere to escape.

Fortunately, after about ten seconds, the earthquake subsided.

Wei Xingshan lay on the ground and breathed a sigh of relief: "I was scared to death, I thought I was going to be buried alive." ”

"There have been earthquakes here before. Yang Tuo was lying beside Wei Xingshan, and at this time analyzed, "You can be regarded as completely ending the earthquake now." ”

"Dr. Yang, could the previous earthquake have also been triggered?" Anne asked.

"Possibly. "Geological activity is very slow compared to human beings. In earthquakes caused by geological activity, there is a process of releasing energy, natural earthquakes, and after the first earthquake, there will be aftershocks. But in the previous earthquake, the Chinese side told me that no aftershocks were observed.

This shows that this earthquake is the result of a sudden change in the underground structure, and after this energy release, because there is no new external force to apply, the underground structure quickly reaches a new equilibrium.

And Captain Wei's bag* once again broke this balance, so the aftershocks came. ”

"Will there be another earthquake?" Wei Xingshan asked with palpitations.

"Probably not. Yang Tuo shook his head and stood up.

The dust settled ahead, and the four of them, led by Lin Shuo, came to the edge of the city wall.

Wei Xingshan's bag* blew a three-meter-square hole in the city wall here.

Anne turned on her flashlight and shone it inside.

This place is on the edge of the urn city, and the light of the flashlight shines in, and you can only see a bluestone paved street, and buildings of different heights are on both sides.

There was no other light source inside, and it was pitch black.

"It's. Wei Xingshan muttered a word and walked in first.

This time, Lin Shuo didn't hold him down, and followed in.

When you really enter it, everyone has an intuitive impression of the size of the city.

The flashlight followed the root of the city wall, hitting left and right, and only the outline of the outer city wall on both sides could be faintly seen.

"About three kilometers. Yang Tuo estimated, "If the length and width are about the same, the scale of this city is about the same as that of Kaifeng Mansion in the Northern Song Dynasty." ”

"I'm going to go!" Wei Xingshan sighed, "How big is this!"

Lin Shuo calculated in his heart and said, "Almost ten square kilometers, which is equal to one thousand hectares, which is larger than a thousand football fields." ”

"Isn't it enough to build such a big city underground?" Wei Xingshan shook his head, "Which landlord's stupid son did this?"

"The landlord's family can't afford to build such a city. Lin Shuo said, "The emperor's family is almost the same. ”

"Even if it's the emperor's family, it has to be the heyday of the great dynasty. Anne also said at this time, "The general small court of peace does not have the national strength. ”

"That's not a lot of that. Lin Shuo said, "There are only a few great dynasties in history whose territory includes Heilongjiang. ”

"Tang, Jin, Yuan, Qing. Anne snapped her fingers and shone a flashlight at the building next to her.

"Looking at the architectural style, it should be the Song Dynasty. Yang Tuo said.

"That's Daikin or the Yuan Dynasty. Anne nodded.

"Doesn't that mean that even a brick here is a treasure?" Wei Xingshan asked, "These are all antiques!"

"Not really. Lin Shuo smiled, "Just the explosion you just now, at least 100 million is gone." ”

"My good man!" Wei Xingshan shrunk his neck.

As they spoke, they walked toward the city.

Lin Shuo, who led the way, seemed to be relaxed, but he was actually in his heart.

For Lin Shuo, compared to the fern forest, the smell environment in this dragon city is much better, and there is not so much interference.

Therefore, he can clearly catch the breath of the hooked snake at the moment.

In addition to the smell of the hooked snake, the smell of the snake is actually stronger, but this is not because the snake is closer to here, but because this is the nest of the snake.

This strange creature has been entrenched here for a long time, and it is not ventilated, so its smell remains everywhere.

Compared to the huge hooked snake and the ba, the smell of the starling bird is very weak.

If it weren't for Lin Shuo's familiarity with Xiao Ba's smell, he really wouldn't have noticed it.

In addition to the smell of these three strange creatures, there is also the smell of herbs wafting from here.

This smell has been very familiar to Lin Shuo in the past few days, this is a kind of grass smell here, it smells very good, and it seems to have some refreshing effect.

It seems that a lot of this grass is also planted in this city.

As we walked, a new smell appeared.

Lin Shuo twitched his nose twice, letting the air pass more through his nasal cavity, carefully discerning the new smell.

"What's wrong?" Anne noticed Lin Shuo's expression.

"Listen to it. Lin Shuo said.

"Good. Anne immediately leaned down and listened to the ground.

"Someone. Anne listened for two or three seconds and said, "It's nearby, five hundred meters northwest." ”

"Probably a missing person. Yang Tuo said.

"It could also be an ambush. Wei Jinshan reminded.

"Go over and see. Lin Shuo waved his hand.

......

Liu Shunfu plunged into the Heilongjiang River and swam directly to the bottom of the water.

As far as he knew, there were three secret passages leading from the ground to Blackwater Dragon City.

One of them was the main road when the Dajin Dynasty built the Black Water Dragon City, which was a spiraling passage similar to a winding mountain road, which was originally an ancient underground river.

It is rumored that the bricks and iron tools used by the Dajin Dynasty to establish the Black Water Dragon City were first transported underground through this road, and then used the underground waterway to reach the city site.

However, this road, the exit has been blocked by the Dajin Dynasty.

The second one was made by the Black Water Dragon King.

When I first arrived here, the winter was cold, and the Black Water Dragon King couldn't bear it, so he chased the geothermal heat to the bottom of the river, drilled and drilled, and drilled a way.

However, there is a large section of the river in the middle of this road, and people can't swim in one breath, so they have to suffocate to death.

The last secret passage, which is exactly what Liu Shunfu wants to enter now, is the masterpiece of the ancestors of the Liu family a hundred years ago.

Liu Shunfu reached the bottom of the river, groped in the mud for a while, and finally touched an iron ring.

He adjusted his body, let his feet steady, held the iron ring in both hands, first twisted it ninety degrees clockwise, and then pulled his whole body hard, and with a "click", a large number of bubbles poured up.

A round iron door was opened by him.

Behind this door is the help of four arms-thick steel springs, otherwise even if Liu Shunfu has a heritage and a thousand catties of strength in his hands, he would not be able to open it under such water pressure.

Through this door and entering a closed cabin, Liu Shunfu spit out half a mouthful of bubbles in his mouth, he knew that he was running out of oil at present, and the time for taking a breath was much shorter than before, so he stepped up the operation on his hands.

Close the door first, but not directly. Now the water pressure inside and outside the closed cabin is the same, and the power of the four springs is too great to be resisted by manpower, and the buckle of the spring must be loosened first.

Loosening the snap of the spring and closing the closed hatch, Liu Shunfu twisted open a small door on the floor of the cabin.

"Boom. ”

The water in the cabin poured into the small door.

Beneath this small gate, there is an underground canal.

The water had already gone down, and the old man leaned against the wall and gasped for breath, feeling his head swell a little.

In fact, the oxygen content here is very low, and he can't stay for a long time, so Liu Shunfu hurriedly opened the door next to him.

Outside the door, there is a rope hanging down, and looking down along the rope, there is no bottom.

Liu Shunfu covered his mouth and coughed a few times, and wiped the coughed up blood on his hand on his body.

"Fool, you have to be here!" Liu Shunfu muttered to himself, holding the rope with both hands, and slid towards the abyss underground.