This feeling as if he should know is actually not very good, because it makes Hao Dong feel like a god chattering, like a ghost.

It's as if there are memories left in the previous life in this life, not only is it unscientific, but it even feels a little supernatural.

So just from the point of getting rid of this feeling, he still hopes that he can recover his memory sooner. At least then you can really grasp the thoughts in your head, instead of being shrouded and controlled by vague feelings all the time.

When Hao Dong was distracted, Zhao Zheng's calculation had already had a result, he was not a person who would delay, so he immediately marked the landing point on the wall according to the calculation results, and then beckoned Qi Jue to start building a support that could bear weight.

There are only a few of them, and they always have to think about the problems that come up after they go down, so according to his idea, he wants to build a simple pulley set here.

Qi Jue's strength is big enough, and doing this kind of work is definitely a top several, so Zhao Zheng dragged him directly, and drove Ergou to prepare the rope that would be used for a while with the queen.

It was not a long time to prepare these things, but in vain they got enough three horses to pull things, and the tools and materials they brought were relatively complete, and they could basically find tools to do anything.

For a while, everyone stopped talking, only the sound of clanging and clanging against the wall and rivets under the holes remained.

Hao Dong squatted on the edge of the cave for a while, and was shocked by the sound of this piece came back to his senses, and suddenly felt a little embarrassed, and went to the queen to pick up the rope together.

The queen looked at him, took two rolls of rope and threw them to him: "Tie these two bundles of rope and tie them to the cold rod, and see if you can see the bottom of the hole." ”

In order to reduce the weight pressure, the ropes they brought out this time were all 100-meter-long climbing ropes, and according to the calculation that one person needs to use 500 meters, there is a large bag specially used to put the rope.

The two rolls of mountaineering rope are two hundred meters together, and one end is tied with a cold light stick, in fact, Hao Dong is very doubtful that when the rope is finished, he will still be able to see the light of the cold light stick. It's dark enough, probably?

Hao Dong is the easiest thing to do, and he is naturally the first to prepare. He didn't need anyone's help, he took the rope himself and went back to the cave and began to lower it.

At first everything was fine, but only now he noticed that the walls of the cave looked like they were wet, and there was even a layer of moss.

It's a grassland, it's underground, and if there's an abundance of groundwater, there's nothing wrong with the brick walls of the cave that seem to be in a damp state.

But Hao Dong still felt that something was wrong, and the feeling in his mind that he must have known became more and more obvious.

Overhead, Qi Jue was still on a shelf with Zhao Zheng, and from time to time some small pieces of cement would fall. At first, the pieces fell into the hole, like the pebbles that the queen had dropped, without even a sound.

But gradually, Hao Dong felt as if he had seen the light of the cave.

By that time, his rope had been lowered by more than half of it, which meant that it had to be a hundred meters deep.

The brightness penetration of the cold light stick was beyond Hao Dong's expectations, even if it was so deep, it could still be seen very clearly, and it could even slightly illuminate the nearby environment.

Hao Dong felt as if he had seen water.

Then, there were more pieces of cement rolling down, and gradually you could hear the sound of popping and falling water.

Everyone was still busy with their own things, and they didn't pay much attention to Hao Dong. It's just that Hao Dong himself began to think, isn't this a bit wrong?

If you don't find that there is water underneath when you throw the fire fold before, it is because the fire fold is too easy to burn out, and the time is not enough to support it to get close to the water surface, then why can't you hear the sound when you throw the stones?

If it is said that it is because it is too deep, the sound has dissipated before it reaches their location, then the volume of cement fragments and slag that fell just now is not large, and the sound can be heard, and there is no reason to replace it with stones.

Hao Dong's mind couldn't turn for a while, and the mechanical one in his hand was still putting the rope down. It wasn't long before he finally discovered the root of the problem, as he finally realized that the light beneath him was beginning to distort.

The cold light rod is a straight one, and it is impossible to turn into an S-shape when you turn it around on the rope. But the glittering light underneath was now beginning to expand into a halo, and the S-shaped lines of light could be faintly seen flickering.

Hao Dong reacted without experience: "There is water gushing up here!" ”

Now everyone's work stopped.

Ergou was the first to jump to Hao Dong's side, looked down, and saw the cold light stick that had floated on the water: "Damn!" There's really water gushing up. It's not going to just flood this place, is it?! ”

The water below doesn't seem to be rising slowly, and Hao Dong can't feel the weight of the cold light rod at this time, it should be offset by the buoyancy of the water.

He pulled the rope up and quickly estimated the speed at which the water would rise: "It can rise about one and a half meters in a minute." ”

At this time, the rope in his hand was only more than sixty meters away, which is not too fast, but it is estimated that he will get the hole in about forty minutes.

The queen turned her head to look around the room where they were, and then looked carefully into the hole in the ground, and felt that she should not be too worried: "Look carefully, this water is likely not to be flooded. ”

The floor of this large room is poured with cement, and upon closer inspection, you will find that there are some traces left by the placement of large machines, which indicates that this is not a place where there will be water.

In addition, the inside of the cave was actually more than 20 centimeters away from the edge of the cave entrance, and it was completely dry, and moss and other things gradually appeared from there. That said, there is less chance that the hole will be covered by water.

Everyone spread out and looked at the other holes, and found that the situation was the same.

So the good thing now is that they shouldn't need to be forced to go back by this water; But the downside is that they can't go down the hole.

There was no other way to this room than through these openings.

Ergou asked with some uncertainty: "There is indeed no fork in the road on the way we came, right?" ”

The purpose of this house is unknown, but if these four passages that go straight down to the well are not real passages, then is this the end of their downstream?

Qi Jue recalled seriously and shook his head: "No." ”

Zhao Zheng was also a little depressed: "We found the wrong one? Gotta go back? ”

The floor and walls here are made of concrete, and it is necessary to check if there are any holes in the back, which cannot be done with the tools they have now. So is this really saying that they shouldn't have acted too soon before they got to the place where the accident happened?

Everyone subconsciously stood together to discuss, but Hao Dong kept squatting at the entrance of the first hole, and at this time, the length of the rope in his hand was reduced by nearly thirty meters, and the water in the hole could already be seen very clearly.

But he didn't squat here to observe the water quality, he just felt that something was about to come out of his head, and he almost went crazy with this feeling.

Qi Jue silently squatted beside Hao Dong and accompanied him to look into the hole.

Although there seemed to be something fighting in his head, Hao Dong's basic perception ability was not lost because of this. He immediately turned his head, but his face was still pale.

Qi Jue was almost startled by him, his eyes were a little flustered for a moment, and his voice became nervous: "What's wrong?" ”

Xiao Qi Ye really rarely took the initiative to express his emotions directly, it didn't matter if he was nervous, the few people who were still struggling with whether to go back like this also immediately noticed Hao Dong and surrounded him.

Ergou continued to play his exaggerated personality: "Hey, it can't be the poisonous gas underneath, right?" The little rat has the worst constitution and is poisoned? Then let's not delay here, let's go back to the ground first! ”

Hao Dong grabbed him: "No." ”

Qi Jue had naturally grabbed Hao Dong's shoulders and asked him to sit down.

The second dog was dragged by Hao Dong, and he couldn't help but worry: "Little mouse, let's not do it." ”

Hao Dong was almost encircled in Qi Jue's arms, but he didn't have the strength to struggle, so he could only lean on his shoulder and pant for breath. I didn't go to pull the second dog anymore, and pressed my temples tightly with both hands to try to relieve the headache that hit me:

"Wait...... I think...... Want to ......"

This posture is familiar to everyone except Zhao Zheng, although I don't know why Hao Dong suddenly seemed to remember something after so long this time, but some of them thought that it was always beneficial to everyone, and immediately no one spoke anymore, just waited quietly.

Zhao Zheng is a smart person, he has also investigated the expedition team, and of course he knows Hao Dong's little secret.

At first, although I didn't expect this to be a precursor to what Hao Dong was going to recall, I could guess by looking at everyone's expressions at this time. simply took out a bottle of clean water and prepared it, and when Hao Dong eased up, he estimated that he would definitely be able to use it.

Zhao Zheng's preparation was not in vain, Hao Dong didn't have a headache for a long time this time, but he still sweated a lot. When he finally recovered and poured a whole bottle of water in one go, he felt as if he was really fine.

Looking at the eyes around him looking at him with concern, Hao Dong suddenly felt very warm in his heart, and the cold feeling brought by recalling some pictures just now was also dispelled by everyone.

This allowed him to even smile a little before he spoke, signaling for everyone to relax.

Seeing that he could laugh, Ergou breathed a sigh of relief, and then immediately asked, "What do you remember about the little mouse?" ”

Eighty percent of the things recalled here have to do with those holes, maybe it's the direction of what they should do next!

Hao Dong didn't go around in circles with everyone, he was silent for a while and sorted out his thoughts, and started with the part that was most relevant to the moment: "These four holes are elevator passages. ”

Hearing this result, several people's hearts sank.

Although the holes have been confirmed to be passages, they are now filled with water, which means that the road ahead has been cut off.

Although they also prepared simple diving equipment this time, it was only suitable for ordinary depth lakes, and they did not consider the need for deep diving. With the depth of the channel, there is no way that device can support them.

Looking at everyone's expressions, Hao Dong knew what they were thinking, but the things he recalled were more special, and he could only say them little by little: "These waters are the power of the elevator." ”

There is a large amount of abundant groundwater resources, and even the scale of an underground lake, on which this hydraulic elevator was built.