"The sound of water?" Hearing the sound of rattling water, the advancing group stopped, and a few experienced people leaned forward, pointed their ears in the direction in front of the crack, and listened carefully.

The sound of the water was a little muffled, just like the sound of thin water falling into the jar, and if you listened carefully, the sound of the water was more mixed, as if there were many water columns falling into the jar at the same time. It seems that the flow of these currents is not large, but the number is very large, so the sound of the water is connected.

"It seems that the flow of groundwater here is much larger than we thought, and judging by the sound, there may be a waterhole in front of it. I don't know if this water will destroy the dragon vein dungeon. Liu Cong said with some worry.

"Probably not, there are many cracks in the mountain here, and they are all artificially polished, if there is really a waterhole in front of it, it also existed when the Dragon Vein Underground Palace was built, and it is impossible for the people who built it not to take into account the water factor. Let's keep going and take a look at the place when we get there. Chen Benzhong knocked on the stone wall on the side of the crack and said confidently.

The further you walked, the louder the sound of the water became, and the sound of falling water was mixed with some rumbling sounds, which sounded like the sound of water flowing in a water hole.

The sounds of the water are very different, some sound like water splashing on stones, some sound like rain, and all kinds of water sounds are mixed together, which is very messy.

When the group came here, they found that the ground of this mountain crack was no longer horizontal, but was sloping downward, and there was a considerable slope.

Judging from the sound of the water, the distance from the waterhole is relatively close, so the ground of the mountain crack has become very slippery, coupled with a large slope, the people in the team can only cling to the wall on one side, with the help of the tools in their hands to climb the side wall of the crack, in order to borrow strength, not to let themselves slip.

The easiest person in the whole team was Chen Sanjin. Chen Ziyang noticed that several cylindrical spikes on the front of Chen Sanjin's pair of stainless steel shoes had bent downward, and these spikes were directly pressed against the slippery ground, giving people a very firm feeling.

With this pair of stainless steel shoes, Chen Sanjin walked on such a slippery ground as if he were walking on the ground, and he was not affected at all, so gradually, he became the person at the forefront of the whole team.

"Click...... Click...... "The tips of Chen Sanjin's shoes and the tools in everyone's hands kept knocking on the stone wall in this crack, but these crisp sounds were quickly drowned out in the rumbling sound of water.

Chen Sanjin, who had reached the end of the crack, stopped, and kept shining the flashlight in his hand. The few people who followed Chen Sanjin saw that Chen Sanjin's flashlight beam seemed to be engulfed by the darkness in front of them, and they didn't shine on anything at all, and it seemed that the space in front of them was very large.

All of a sudden, everyone in the team came to their senses. Chen Benzhong had guessed before that there should be a very huge underground space here, and it was very likely that it was where the Dragon Vein Underground Palace was located. Now a huge space appeared in front of everyone, that is to say, it is very likely that everyone is about to reach the location of the Dragon Vein Underground Palace.

The slope of the crack flattened again after reaching the end, and a dozen people lined up at the edge of the crack, looking in front of them.

This is a very large shaft, and the crack in the mountain under the feet of the people is on the top of this shaft, and not far from the heads of several people is a huge hemispherical shaped rock top.

The top of the rock was like a cauldron on top of the shaft, and a lot of rocks protruded from the top of the rock, and if you looked closely, there were some iron bars faintly exposed between these rocks.

It seems that these bars are artificially placed on the top of the rock, and their function is to get stuck between the raised rocks on the top of the rock, so as to strengthen the strength of the rock top, and it is no wonder that this hemispherical rock top did not collapse under the extrusion of the upper strata, and it should be these iron bars at work.

The depth of the shaft was very deep, about 100 meters, and the beams of the flashlights shone on the bottom of the shaft, and you could vaguely see the shaking water surface under the shaft.

The team then directed the flashlight beam towards the side wall of the shaft. Because the area of this shaft is very large, it took a while for everyone to have a rough look at the side wall of the shaft.

The side walls of this shaft are covered with jagged rocks, as well as cracks in the mountains of various shapes, large or small, thin or wide, and it is not known how many there are.

Some of the water flows out of the cracks, and these currents are large or small. The large ones form a small waterfall, and the small streams flow down and into the pools below.

In addition to these mountain cracks, there are also holes in the side walls of the shaft that are more regularly shaped, some of which are similar to circles, and some of which are similar to squares. The size of these holes is not very large, the largest is only two meters square, and the smallest is even less than one meter in diameter.

"It's too hard to look at it this way, get a flare." Chen Benzhong said in a trembling voice, obviously this hundred-year-old man was very excited, even if he had rich experience in his life, it was difficult to suppress the excitement in his heart.

"Bang...... Sneer...... "With Chen Benzhong's order, a flare rose into the air along with a white smoke, and after crossing an arc in the air, the flare suddenly exploded, lighting up this huge deep well.

When the dazzling white light appeared, the eyes of everyone in the team were a little painful from the bright light, and they had been walking in the dark, and everyone was a little uncomfortable when they saw such a bright light at once.

But instead of squinting their eyes to avoid the glare light, they all kept their eyes wide open, ignoring the stinging pain caused by the glare light, and all looked around greedily.

The flares illuminated the shaft in full view, and the entire shaft was clearly visible to everyone. The cracks and holes in the side walls of the shaft are so staggered that they look like rooms, and the sides of the shaft are lined up several times, and at first glance the whole shaft looks like a building.

The bright light of the flare also illuminated the waterhole below, which was not very deep, and the light from the flare directly penetrated the waterhole and shone on the bottom of the waterhole.

The water in the waterhole is very clear, and with the bright light, everyone can directly see the rocks at the bottom of the pool. There are also water holes around the waterhole, and the water in the waterhole flows in all directions.

The bottom of the pool is covered with pieces of gravel, and if you look closely, the surface of these gravel is relatively smooth and angular, and some of the gravel edges are very regular. It looked like bricks had fallen into a pool of water and were torn apart.

At this time, the flare had burned out, and the light emitted was gradually weakening, and other people were still hurrying to watch desperately, but Chen Ziyang's eyes widened in surprise and he was stunned on the spot.

At the moment when the flare exploded, the rock cracks and regular holes in the entire deep well were reflected in his eyes at the same time, and suddenly a very familiar feeling emerged from Chen Ziyang's heart, as if he had seen this scene in front of him with his own eyes.

After this feeling suddenly appeared, Chen Ziyang didn't care about checking the things in the deep well at all. He spun his brain around at a rapid pace, desperately trying to remember where he had seen the picture in front of him.

"Where is it...... Where exactly? This question kept shaking in Chen Ziyang's mind. Now he felt that his spine was a little numb, and the goosebumps all over his body had swelled up at this moment, and this feeling made him clearly know that he had indeed seen the picture in front of him.

Just when Chen Ziyang racked his brains and couldn't think of it, he suddenly touched the model of the four mountain ranges in his chest pocket, as if a thunderbolt exploded in his mind, Chen Ziyang hit a stirring spirit and remembered.

He had indeed seen this scene in front of him, not somewhere else, but in the tomb of Cardinal Fish-Turned Dragon King in shallow water when he robbed the tomb for the first time.

When they were in the tomb of Cardinal Wang, the three Chen Ziyang brothers were trapped in a stone room with several wall carvings. At that time, there were two that impressed Chen Ziyang, and they were the last two of a complete set of wall carvings. On the penultimate wall carving, it was the picture he saw now.

The wall carving depicts Cardinal Wang standing close and looking into the distance, and behind him, a large number of people are busy, apparently carrying out a large-scale project, and now that I think about it, it should be this deep well depicted in that picture.

When he saw the wall carving, Chen Ziyang came up with the idea that this wall carving meant that Cardinal Wang was supervising the progress of a project, and the scale of the project was very large. Later, according to his speculation, this project was most likely the construction of the Dragon Vein Treasure of the Great Qing Dynasty.

Now it seems that his speculation at that time was very correct, and it was Cardinal Wang who carved the picture of the construction of this deep well on the penultimate wall carving.

Immediately after that, on the last wall carving, Cardinal Wang is depicted sitting in front of the shallow water fish dragon feng shui treasure cave, his figure is a little rickety, which is very different from the high-spirited appearance in the previous picture.

"I see!" Just when Chen Ziyang was caught in the memory, Chen Benzhong's words interrupted his thoughts.

"Do you see the slate-like things that have broken at the bottom of the pool? If I'm not mistaken, the slabs were originally placed on the side walls of this deep well, on the surface of the more regular holes or some small cracks.

These slabs are supposed to be valves, controlling the opening and closing of holes or cracks in the rock wall, but because they are older, they have fallen from the side wall of the deep well and have broken at the bottom of the pool.

There are many cracks in the whole shaft, and it is likely that some of the cracks were used to divert water when this place was built, and a large amount of water was poured into this deep well.

Through the opening and closing of these stone slabs, the amount of water in this deep well can be controlled, and the water surface constantly changes in height with the opening and closing of the stone slabs, so as to connect other relatively wide cracks of different heights.

If they want to make the water higher, they close all the slabs, and when the water rises to the height they want, they open some of the slabs and let the water from the deep well flow out.

As long as the number of slabs is controlled, the amount of water injected and the amount of water discharged can be equalized, so as to maintain the water surface at a fixed height.

And when the builders want to lower the water level, they either close the water inlet with stone slabs, or open more stone slabs to increase the amount of water discharged.

It can be said that this deep well is an elevator. It's just that this elevator doesn't need electricity, and it is controlled by the amount of water in the deep well.

These wide cracks, including the one we walked through, should be the passage through which materials are transported. The raised water surface connects these cracks of different heights, and with the help of wooden rafts and other things floating on the water, the materials can be freely lifted and lowered in this deep well.

It's really a miracle. The person who designed and built this place was really wise, and he must have been a person with a very deep understanding of mechanics, and this person should be a great master. ”

After listening to Chen Benzhong's words, the others suddenly realized that this seemingly ordinary deep well actually hid so many mysteries. After figuring out the function of this deep well, everyone was amazed.

"Hmph, master, isn't it a master, this master has become a corpse demon, and he blinded me in one eye." After Chen Ziyang quietly said that this was built by Cardinal Wang, Yang Lei gritted his teeth and whispered in the ear of Umbrella Shishuai.

"Shhhhh......h

Now Chen Ziyang's eyes were full of excitement, but the reason why he was excited was not because he admired the ingenuity of the structure here, but because he finally got all the clues right.

I don't know why, after understanding that this deep well is the picture carved by Cardinal Wang on the mural, Chen Ziyang has a feeling, a feeling that everything is about to settle.

"Look there!" Liu Cong pointed to a crack in the mountain below and said loudly.

With the light of the flares that were about to disappear, the people in the team looked at it, and in the direction of Liu Cong's finger, there was a relatively wide mountain crack. A very regular-shaped object emerges from the crack.

The object looks like the corner of a cube with three straight edges. However, the reason why Liu Cong shouted out in surprise was not that the shape of this object was relatively regular, but the pattern on this object.

On the exposed corner of this object, there are regular horizontal and vertical textures, like the lines on a brick wall.

With these lines in the background, this object is now clearly a corner of a city wall in the eyes of everyone.

(End of chapter)