The two continued walking twenty or thirty meters forward and saw the scary culprit, another giant green, and they were probably about the same size as Xu Guyu found the one.

This guy is so straited that he directly stirred a mud hole on the already tight mud so that he could stay inside, which was much more comfortable than those fish that had turned their stomachs.

"Fu Ling... Damn..." The two of them were about to go around the side of the mud pit quietly, but they didn't expect that the guy would swing his tail again, splashing the two of them all over the mud, especially Zhang Jingmin, who was splashed with him and was not on the same side before, and now he was covered in mud, which made him very angry.

"Oh... listen... is there a sound of water in front of you?" Zhang Jingmin cursed a few times, but he didn't dare to get too close to the fish, so as not to be splashed again. After he finished scolding, he heard the sound of falling into the water again.

"It's true, go and take a look." Lin Mo confirmed that Zhang Jingmin heard it correctly. The two of them accelerated their pace, but they stopped shortly after.

The situation of the secret passage in front has changed again, and even the blue brick wall and blue brick roof is gone. Instead, it is supported by wooden columns and covered with wooden boards, which is similar to the support structure of an old mine cave.

The pillar stands on both sides, with a horizontal thick square wood. There is an oblique wood between the thick square wood and the pillar to connect it with mortise and tenon to form a triangular structure to reinforce it. On the thick square wood are several smaller square wood parallel to the secret path, and above it is the wooden board, which looks much better than those simple mine caves.

Lin Mo leaned closer and carefully inspected the wooden pillars on both sides, and then looked at the wooden boards on the top. Fortunately, the situation was not too bad, and because there was no wall or roof, the space seemed larger, and the width and height were probably almost three meters long.

Wood is not necessarily damaged when soaking in water, especially some hard wood. As long as the water does not rise and fall, the wood will not be soaked in water for a while, soaking it in water may not be shorter than building materials. In some places in China, before building houses in traditional houses, the wood will be soaked in the pond for a while, which can also prolong the use of the wood!

"The situation is not too bad. The wood used in both the wooden pillars and the boards are good. The wooden pillars are big enough and the boards are thick enough. You can continue to explore."

"That's good..." Zhang Jingmin chose to believe Lin Mo, explained the situation backwards, and then slowly stopped with Lin Mo.

As I walked, I started to check the situation. The situation was not bad. Except for the soil walls on both sides, some places were soaked and collapsed, and the wooden columns were still firm. Of course, the sound of water became clearer and clearer.

Although the direction of the secret path is roughly consistent, it does not move straight forward. There will be some deflection and small curves in the middle. This kind of place is generally slightly wider. It is estimated that it is to avoid large stones when excavating. After all, the secret path is definitely done secretly and you cannot make too much noise.

After a slow turn, the two of them shone forward in a flashlight and saw a small stream of water flowing down from the top of the secret passage. Zhang Jingmin wanted to rush over quickly, but was grabbed by Lin Mo.

"Slowly pass, I see that the wooden boards supported there seem to be falling." The distance is still a little far, and the flashlight is not too clear, and only the reflected water flow can be vaguely seen.

As each person slowly checked forward, mud was accumulated here, no! It should be said that it was a mixture of mud, sand, soil, etc., and it was probably about one meter thick, because the head was almost touching the crossbar on it.

Fortunately, the mixture is relatively tight and there is no ankle. This thing is black and gray, and the graininess is very obvious, which is visible to the naked eye. Except for some sand, there are also fine and small pieces of snail shell pseudo-shells. Some of the big ones are still intact, and the small ones are probably broken into mud, but the surface layer is more broken, and they are probably all passed by the fish's mouth.

In addition to these things, leaves, grass leaves, broken branches and other debris began to appear on the ground. It was probably what came in from the water flow in front, and it was also an external supplement to the underground ecological cycle.

Before approaching, the thing supporting here did collapse. To be precise, a pillar fell down. The one on the left was gone, probably because it was buried.

The pillar on the right is still firm, but the square wood across the horizontal has fallen slanted, one end buried in the mud, and the other end is stuck on the top of the pillar on the right. Most of the horizontal square wood on both sides supported by the horizontal wood are gone, and the rest is like the horizontal wood, one end buried in the mud, and the other end is stuck on the square wood on the other side. As for the wooden boards, there are basically no traces. It is estimated that a collapse occurred on the top, crushing these things down.

Simply put, even if a pillar is collapsed, the horizontal wood in the middle is also collapsed, and the square wood and wooden boards on both sides are also collapsed, which means that two supporting surfaces are collapsed, which also affects the stability of other supporting surfaces on both sides.

The water flowing down from the top is probably as big as an open faucet, close to the left wall and flowing to the side where Lin Mo and the others came.

Lin Mo looked carefully and found that a large area of ​​land had indeed collapsed from the top, revealing a blue brick above it. It looked like it was a canal, which was about thirty degrees and passed through the secret passage at an angle of about thirty degrees. The water flowed out from there. Before the collapse, it should be about one meter of soil layer between the top of the secret passage.

"Please lift me up and let me see the situation of the canal and the hole above." Although the mud layer here is the thickest and highest, it is still a little far from the hole.

"Okay, you should be about the same as standing on my thigh." Zhang Jingmin nodded, stomped and let Lin Mo stand on his legs.

Lin Mo was not vague and stood up directly, stabilized his body and checked immediately. The hole should have collapsed and cracked. The bottom of the canal was opened. Both sides of the crack were high and the other was low. The lower side was the incoming water side, which was the upper side of the canal.

The width of the crack is about one palm. I have to say that the quality of the canal is really good. It collapsed and did not collapse at all. However, Lin Mo did not dare to touch it randomly, so as not to make the crack bigger and difficult to deal with.

When Lin Mo came down, Zhang Jingmin immediately asked about the situation.

"I know why there are so many big fish underneath."

"Why? Don't keep it a secret with me!"

"Hehe~ This break is too small, and the widest part is the palm. The water below is very large and more comfortable than the small ditch outside. After the fish came in, they grew up here and couldn't get out. By the way, the sound is a little bit smaller. The ditch above may be on the side of the road. I just heard someone passing by."

"It's that simple?" Zhang Jingmin lowered his voice and spoke in surprise.

"More than just..." Lin Mo shook his head and continued: "The cracked hole is sunken on the side of the incoming water, and the other side is still in place, forming a crack on one side lower and the other side higher, just like a secret passage opening its mouth.

Most of the branches, leaves, debris, etc. that rushed downstream were probably eaten by this mouth. Most of the snails, shells and other types that flowed downstream against the flow were probably going to enter from this gap, bringing relatively sufficient food supplements to the fish and ecological system inside. Without natural enemies, the fish grew so big."

"There are also the leftovers that others poured. I just saw rice grains and vegetable leaves. It should have been poured into the ditch by citizens outside."

"It does include these, but this ditch does not connect many people, and this kind of thing is only a small part.

The canal should be connected to a ditch that descends from the mountain. This continuous and stable flow of water should be from the mountain, and the lake at the foot of the mountain should be located down.

When it rains and water rises, small fish, snails, shrimps, and shells in the lakes at the foot of the mountain come up here along the water. The rainwater on the mountain also comes into here. Although these things cannot enter the fish's mouth directly, a large number of microorganisms living here can make a living by eating and decomposing these organic matter, and then become food for larger organisms, passing them one by one, and finally entering the mouth of the big fish."

Lin Mo was not careless about this. First, there were not many residents in this place, and secondly, too much sewage discharged by residents came in. The ecosystem here was difficult to withstand, and it was probably turned into a smelly sewage pond.

Although the living standards of residents in this era were relatively limited, there were also rich people living in this place. They were reluctant to discharge as much oil and fat, which were slower decomposed, and there were no more difficult solid waste such as plastics in later generations, but substances like salt can be absorbed, but they will also be discharged. Too much domestic sewage will enrich substances such as salt. If it weren't for the continuous living water here, this amount of sewage alone would not give fish such an environment suitable for growth.

"Your statement should involve some Western biology content! You can explain it directly if we don't understand it very much?"

"Captain Liu, you came here yesterday..." Liu Zhenshan quietly came over and asked, which made Lin Mo frown slightly, but Lin Mo still explained in an easy-to-understand manner and gave some examples to facilitate the two of them to understand.

"Seeing that you are still moving here for a long time and are so dangerous here, why can I stay behind? Of course I have to be with you."

Hearing this explanation, Lin Mo frowned and said, "Captain Liu, because of this danger, you have to stay away from us and retreat to a safe range.

This is not for you! It is for us both. When we encounter danger, you have to pass on the situation and call for support as soon as possible.

And when you encounter a landslide, you have to come up and find a way to dig us out immediately after you pass the message. At that time, you were racing against time, so you left the team member behind and waited for him to call for support, and everyone would probably be cold.

So, Team Liu, you should go to the back, try to stay away from the scope where you can pay attention to us, and it is best not to be in the same dangerous area as us, so as to leave enough reserve force for handling emergencies."

"I'm too erratic, so I'll go back now." After hearing Lin Mo say that, Liu Zhenshan realized that Lin Mo arranged three waves of manpower and this consideration. There may be dangers here at all times and there is no way to avoid mistakes. He immediately agreed and went backwards.

"Wait..." Lin Mo whispered to Liu Zhenshan and said, "Captain Liu, you have to notify the people behind to fill the crack. The water flow should be continuous. If you don't fill it up tomorrow, it may have to accumulate a large pool of water, which is not conducive to the subsequent cleaning work."

"How to make up for it?" Liu Zhenshan looked up at the crack and asked.

"There are a lot of discarded rubber tires outside! You can use local materials, then bring a larger fire source such as torches, first clear the cracks, and then use rubber sheets to block the gaps.

Then use fire to melt the rubber sheet. After pressing it flat, use the larger rubber sheet to melt one side, apply it and press it on to apply it. You can apply a few more layers. It should be able to block the water in the cracks and not enter water. It will be further processed later."

"Okay..." Liu Zhenshan nodded and quickly retreated to the back, summoned the team members to pass on the situation back, and arranged for people to prepare the corresponding things to plug the leak.

As for Lin Mo and the other two, they checked the situation here and continued to move forward, but the road ahead was a bit difficult to walk, because the location of the water inlet was the thickest part of the secret passage. Going forward, the water level dropped to this height and it could not flow out. The two of them could only wade through the water.

Moreover, because the direction of the water flow is to rush to the other side, there is even less mud and sand on this side. Before I go far, the pseudo-silt under my feet begins to soften, and then it starts to turn into mud, which directly allows the water to cover my waist.

Fortunately, although the walls on both sides were not further processed, they were probably for the convenience of transportation, and the bottom was still covered with blue bricks, which made it easier for the two of them to go away. Moreover, this side was not flowing in water. If you go forward for a while, the silt became shallow very quickly.

"Ouch... squeak..." A brute force came from his thigh, and Lin Mo couldn't stand steadily and leaned back against the wooden pillar.

"What's wrong? Is it okay..." Zhang Jingmin was not sure about the situation, and asked while illuminating the flashlight everywhere.

"It's okay, it's okay~ I've been hit by a big fish in my leg, I haven't stood firm~"

"Be careful, call me if you have any questions."

"OK……"

There was a small episode, and the two continued to move forward. I don’t know how long they had been in the water or how far they walked. Lin Mo felt that the water was slowly becoming shallower, perhaps because the terrain of the secret passage was gradually rising.

Lin Mo felt right. After walking forward fifty or sixty meters, the two wade out of the water. The walls and tops here turned into stones again, and about thirty meters ahead. The curve of the slope began to grow larger, and to the extent visible to the naked eye, they also saw the traces left by the original water level. They went forward and were flat again. After turning a corner, the two finally saw the end.

However, the end was blocked by stones. The two of them checked it all. The stones were almost as big as a washbasin, and a single person could barely move them. However, after hearing this, they could not hear anything outside at all. It was probably a thick layer, so it was not easy to move them away. Moreover, it was not appropriate to move them away rashly. They still had to find the exit first and take the place down before they could proceed.

After careful inspection, the three waves of people in front of each other changed to the back team and began to retreat. On the road, they encountered a team that came in to catch fish. The fish had been caught on the side of the water. The four of them also made a big yellow-white koi of forty or fifty kilograms and transported them out with a cloth.

Later, I met a team of dredging cleaning. I got four mules, horses and chariots from somewhere. The chariots had relatively high compartments to clear the fake silt in the underground warehouse and secret passages. At present, half of the section from the inlet has been cleared.
Chapter completed!