Liu Shangang and Li Huaishan inflated the raft and put the diving equipment on it, and Zuo Youdao and I went into the water from the southwest shore of the swimming water, and set up the raft to ferry to the center of the water.

The six ports at the bottom of the water are located in the center, southwest bank, west bank, north bank, northwest bank, and east bank of this water.

The reason why I chose to launch the water from the southwest shore is that from here you will walk towards the middle of the lake, and you will not encounter hidden piles buried under the water on the way.

Judging from the mechanism map, when Xu Blind built the darkroom, he buried a lot of hidden piles underwater, these piles are thin and long, and the top of the pile is equipped with a tooth hook, which can hook the bottom of the boat.

Zuo Youdao said that after so many years, it is estimated that the hooks on the top of the pile have been corroded by water.

He does have a point, but to be on the safe side, we need to be as careful as possible.

Fortunately, there were no accidents along the way, Zuo Youdao and I easily came to the middle of the water, during which I did see some narrow aquatic plants under the water that could almost drill out of the water, and I didn't know if it was a real aquatic weed, or a dark pile covered by waterweeds.

The raft came to a stop by swinging the oars on the left, and I lowered the oars early in the morning and began to put the diving equipment on my body one by one.

"Can you do it alone?" Zuo Youdao asked me while stabilizing the raft.

I said, "There's a bit of wind and waves on the water, you have to stay on the raft, or it'll be a problem if it drifts away." ”

Zuo Youdao nodded and handed over an underwater searchlight.

I smiled and waved my hand, "I don't need to." ”

With that, I lay on my back and fell into the water, and when I was in the water, I twisted my flippers and waist, flipped over, and swam to the bottom.

There are a lot of dark stones under the water, I dived for more than ten meters, and I saw that there are many towering stone pillars in the water, these stone pillars are built with a piece of rough stone weighing thousands of catties, and it is not a naturally formed thing at a glance, it is possible that the blind man built it when he built the dark room, and he didn't know what it was for.

At first, I could still see fish in the water, but as I dived deeper and deeper, the water became cloudy and there were no more fish in my sight.

At present, even if I rely on the ghost's eyes, I can only see the scene of six or seven meters around me, the water is not dark and muddy, and there are many flocculent things floating, those things at first glance, like a large piece of black paper ash raised when burning paper, they are swinging around in circles under the water, as if there is an invisible force that suppresses them, so that they cannot surface.

With this in mind, I looked at the nearby stone pillars again.

The more I look at them now, the more I feel that these stone pillars seem to be arranged into a magic circle, but I can't see the doorway of this array, it doesn't seem to be arranged according to the eight trigrams or the five elements of yin and yang.

Soon after the flocculent floated in the water, I touched the bottom of the water.

I am now in a relatively deep depression, the vertical depth of the bottom is at least forty meters, but less than twenty meters from here, there is a rising stone slope, and the distance from the top of the slope to the surface of the water is only five or six meters.

To be honest, before I got Zhou Lianshan's mechanism map, I didn't expect the underwater situation to be so complicated.

A thick layer of black floc was attached to the bottom of the water, and I brushed it away with my hand a few times, and a relatively flat stone slab appeared in front of me, and a groove with a very complex pattern was carved in the center of the slate.

Due to the erosion of water for hundreds of years, the pattern is no longer clear, and it can only be vaguely recognized from the outline that it is a tree full of branches, the left half of the trunk seems to have many branches and leaves, and the right half of the trunk is a bare branch, as if it is dead.

However, I am not sure if the lush canopy on the left half is an erosion mark from water erosion.

According to the description on the mechanism diagram, there is a rotating wheel shaft inside this slate, as long as you press the palm of your hand on the slate, let the slate rotate six times and reverse nine times, you can start the first valve port.

But how many years have passed, the slate is almost stuck to the rock layer at the bottom of the water, I can only take out the mountaineering spring first, along the edge of the slate for a while, I feel that the slate and the rock layer have signs of separation, and then take out the carving knife, the gap between the slate and the rock layer is slowly widened.

The first time the knife was pierced into the junction of the slate and the rock formation, a large number of bubbles floated out of the knife.

At first, I was worried that the axle under the slate might also be corroded, but now it seems that I did have some worries, when Xu Blind Man was making these slates, he made protective measures, he pressed the slate and the rock layer tightly together, just to form a cavity under the slate, and now that cavity is still full of air, if I hadn't pierced the connection between the slate and the rock layer with a knife, the water would not have been able to enter at all.

However, I don't understand how Xu Blind did this, unless he first emptied the water in the swimming swing and poured the water into it after making the stone slabs, he could only work underwater, and he would not be able to make such a completely waterless cavity.

Seeing that the slate was completely separated from the rock formation, I turned the slab according to the description on the mechanism diagram, and after six turns, I could vaguely feel that the bottom of the water was trembling slightly, not much, but trembling very quickly, as if a large number of incomparably delicate mechanisms were operating at the same time, and after two or three seconds, the tremor disappeared, and I reversed the slate nine times.

This time there was no more tremor, just a very slight "click" under the slate.

From what I know of the mechanism, it should be the sound of the anchor snapping ring.

The valve port has been opened.

I straightened up and quickly surfaced.

The moment I got out of the water, Zuo Youdao reached out and grabbed my wrist and pulled me onto the raft.

"How?" Zuo Youdao handed me a towel and asked.

I cleared the water from my ears and said, "There's a lot of flocculent stuff squeezed under the water, and I don't know what it is." ”

"What kind of flocculents?"

"It's like a piece of paper ash, clumps pressed to the bottom of the water, it looks light and fluttering, but it can't float on the surface."

Zuo Youdao took a moment to think, and then said to me: "That may be the skin of the fish demon, it is very similar to the corpse I saw at the mouth of the Yellow River, the corpse also molted, and the skin that was shed was similar to what you described after being eroded by water, and it could not float on the water." Hey, when I said this, I suddenly remembered that when we came out of the corpse tomb, we found that there was a Ming Dynasty tomb connected to the corpse tomb. The tomb was similar to the one depicted on the map, with a simple main tomb and two ear chambers. ”

Hearing him say this, I was thinking that there might be some connection between the tomb of Pan's corpse at the mouth of the Yellow River and the dark room in the water, so I said to Zuo Youdao: "When the current matter is over, I think it is necessary to go and see the tomb of the corpse you mentioned." ”

Zuo Youdao nodded: "Okay." ”

As he spoke, Zuo Youdao swung his oars and swung the raft towards the northwest shore.

The six valve ports at the bottom of the water, each of which is exactly the same, all the valve ports are built at a very deep bottom, surrounded by artificially erected stone pillars, the valve ports are carved with tree-shaped patterns, and near the valve ports, there are also many fine flocculents.

Before I came to a valve port, I would take a closer look at the pattern on it, and after looking at a few in a row, I could determine what the pattern depicted.

It was a half-alive, half-dead tree, with lush foliage on the left side and dead on the right.

I suspect that the blind man who built the darkroom may also be a member of the Ming Sect, at least under the influence of the Ming Sect, because the tree on the stone slab is the tree of life and death that the Ming Sect often mentions.

The stone pillars, including those at the bottom of the water, may also be arranged according to some kind of Yili in Mingjiao.

After opening the fifth valve, I swam underwater for a while, when I left the area where the stone pillars stood and came to a relatively flat area.

At the bottom of the water, surrounded by stone pillars, there was mixed water and flocculent floats, but the water outside the stone pillars was very clear, and I often saw fish swimming by nearby.

It stands to reason that even if the place surrounded by the stone pillar is just muddy, there is no deadly toxin, and there should not be a single fish.

I was surprised, so I looked underwater for a while, and found that the fish would automatically avoid the area surrounded by the stone pillars, and occasionally a few fish would suddenly turn around and swim away in the opposite direction.

When I saw this, I realized that those stone pillars were arranged into a closed maze, and living creatures could not enter at all.

It is estimated that with the naked eye, it is impossible to see those pillars at all, otherwise Xu Shigao would not have been looking for so long and did not find anything.

In addition, I also found a lot of collapsed dark piles under the water, these thin piles have been corroded to the point of disappearance, but I can still faintly see the traces of sharp hooks on the top of the pile.

I feel that these thin stakes seem to be made from some kind of animal vertebrae, and although they have been corroded to the point that they do not look like them, if you touch them carefully, you can still feel a little bit of the texture of the bones.

The last time I went into the water, I opened the sixth valve, and I was underwater at the time, and I didn't feel anything unusual, but there was a lot of commotion on the shore.

When I was about to float to the surface, I felt a torrent near the water, and Zuo Youdao reached out in advance to pull me out of the water, and as soon as my ears came out of the water, I heard a very rapid sound of running water coming from the shore.

Zuo Youdao shouted at me: "I can already see the drainage hole!" ”

Because the sound of the water was so strong, I couldn't hear him if he didn't shout hard.

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