After being pulled out of the trap, Chen Ziyang turned his head to see that in addition to his three people, there were four other people left here, one was Chen Sanjin, and the other three were Liu Cong's team members.

It seems that more than half of the people in the team have been separated from the other side of the wall, and I don't know what the situation is over there, whether there is such a trap on the other side of the wall, I don't know if anyone has been tricked.

Yang Lei and Umbrella Shishuai were so tired that they collapsed to the ground, while Chen Sanjin walked to the front of the deep well, staring at the closed wall in front of him carefully, and at the same time raised his ears to listen.

But I don't know if it's because this wall is very thick, Chen Sanjin can't hear a sound at all.

The well was almost three meters wide and connected directly below the closed wall. Chen Ziyang estimated that the wall would not be opened again, and this road was estimated to be impassable, so it seemed that he could only choose another road to go.

In addition to ordering the other three team members to search nearby to see if there was a mechanism that could open the mechanism wall, Chen Sanjin was slowly adjusting the spikes on the front of the steel gloves and boots, so that these spikes bent down slightly, while his eyes kept sweeping the walls on both sides.

Seeing Chen Sanjin's actions, Chen Ziyang knew that the old man was about to climb over the walls on both sides and wanted to search the machine wall.

Even though the results of Chen Sanjin's search were not known yet, Chen Ziyang was very sure that the closed walls would never be opened, because the purpose of this mechanism was to divide this passage into two sections.

The person who triggered the trap was supposed to be the pathfinder at the front of the line, and the team member hurriedly turned around to warn him after triggering the trap.

Although it was the person at the front of the team who stepped on the trap, the trap wall appeared in the middle of the team, a long distance away from the team member.

In this way, the purpose of this mechanism is to divide a long team into two sections, so as to completely separate the teams on both sides and weaken the strength of this team.

Therefore, after such a mechanism is triggered, it is absolutely impossible to retract it, in which case the mechanism is meaningless. In addition to this, this mechanism is also set up to kill, which is the deep well near the mechanism wall.

Although he couldn't see the situation on the other side of the wall, Chen Ziyang estimated that there should also be a trap door on the ground on the other side, and when the wall was completely closed, this trap door would also open, and there should be an identical deep well below.

This mechanism is very insidious, taking into account the psychology of the people. Suddenly, a wall appeared and separated the entire passage, dividing one team into two sections, so the two teams separated by the wall would definitely rush to the vicinity of the wall to see what was going on on the other side of the team, to see if there was a way to open the wall.

And just as the people on both sides of the wall gathered near the wall, the delayed opening of the trapdoor suddenly opened, and the people near the wall fell into the deep well, and were stabbed into a hornet's nest by the sharp objects below.

Thinking of this, Chen Ziyang was shocked into a cold sweat, and fortunately, when this wall suddenly appeared before, he chose to run in the direction of Yang Lei and Umbrella Shishuai. If he had rushed to the other side of the wall for safety reasons, then Yang Lei and Umbrella Shishuai would definitely come to the vicinity of the wall, slapping the wall and shouting their names loudly.

At that time, the floor flap, which was delayed by a few seconds, would open, and the two men would fall into the deep well below. Maybe the one who is separated by this wall will do the same, and then there will be three people who are unlucky, and there will be no one over there to help him pull the red rope.

Unexpectedly, one of his unintentional choices would save the lives of the three brothers, Chen Ziyang became cautious. Judging from this mechanism alone, this underground labyrinth is not easy to get along with, and the first mechanism that appeared killed everyone by surprise, dividing the entire team into two sections, unable to take care of each other.

Fortunately, the main purpose of this mechanism is to divide the team, and if it is a killing move first, the larger the area on the ground that collapses, it is likely to cause more casualties.

Considering these, Chen Ziyang felt that the next road should not be easy. It seems that the designer of this mechanism expected that the number of people who could enter here must be large, so he adopted the method of dividing first, and after such a mechanism was activated several times, a team of many people would also be divided into several small squads.

When that time comes, the mechanism that will be activated again will not be so merciful, and it will definitely be full of killing machines, so as to eat away at the divided team little by little, that is, the further you go, the greater the danger.

At this time, Chen Sanjin had already finished preparing and began to move. Standing on the edge of the deep well and jumping, Chen Sanjin was already lying on the side wall, the spikes on his gloves and shoes firmly stuck in the cracks of the stone bricks.

Immediately afterwards, with the help of gloves and spikes on his shoes, Chen Sanjin jumped again and lay directly on the mechanism wall that suddenly appeared. After moving up and down the wall for a while, Chen Sanjin found that there was no mechanism or anything like that on the wall.

He put his ear to the wall, listened carefully for a while, and then kept tapping the wall with his gloves, trying to send a message to Chen Benzhong and the others on the other side, but all this seemed to sink into the sea, and there was no response.

After returning to the safe area, Chen Sanjin showed a cautious face and said to the six people in front of him: "This road has been completely blocked, and the stone wall here is very thick, our communicator can't work, and there is no way to communicate with the other side."

What we can do now is to find another way out, to see if we can meet them halfway, or if we can find the center of the labyrinth.

I'm older than you, and I have more experience, so you juniors will follow me, and if I fall into any trap or have any accidents, you will choose another meritorious. ”

So the seven of them turned around and walked back along the path they had come, and this time, Chen Sanjin asked Chen Ziyang to be the pioneer of the path.

The other three team members have already been top soldiers, their highly tense nerves have not been completely relaxed, and Chen Ziyang is also relatively experienced, so this arrangement is reasonable.

Because everyone had already walked by when they came, there should be no mechanism, so Yang Lei and Umbrella Shishuai didn't worry too much, the two of them separated themselves from Chen Ziyang a few meters away and followed behind.

Looking at the reading of the pressure pointer on the oxygen cylinder, Chen Ziyang frowned. It has been a few hours since I entered the dungeon, and now half of the oxygen in the oxygen tank has been consumed. It seems that everyone is still active on the periphery of this dungeon, and there is still a long way to go from the central area, and they don't know if this oxygen can hold on.

"Huh? Wrong! Thinking of this, Chen Ziyang suddenly woke up, and he suddenly thought of the person who committed suicide in front of the steel gate before.

Judging from all the signs, that person should have entered the underground palace and walked out of the labyrinth, otherwise, he would not have rubbed off the hints on the jade seal, and there was no oxygen cylinder in the items that the person was carrying.

Think about it from another angle, when this dungeon was built, in addition to protecting the dragon veins, it was also used as a treasure dungeon, and these treasures should be taken out, so the designer must have taken into account the problem of oxygen.

The period when this underground palace was built should be when Kangxi was the emperor, and I don't know if there was an oxygen cylinder at that time, and even if there were, it must be a very scarce thing, and it is impossible to equip a whole team.

And there must be a lot of treasure buried here, if you want to take out the treasure inside, you need a whole army to carry it, not to mention that in that era, the transportation is all by manpower, the efficiency should be very low, and the time required should be very long.

It takes so many people so long to be able to move out the treasure, so that is to say, this underground palace should have been built with ventilation in mind, and it is impossible to make it completely sealed, so no one will be able to take out the treasure.

But why is the flame of the dog oil candle hanging from Chen Benzhong's waist green? And the air detectors in the hands of Liu Cong's team members also made an alarm sound? Why is that......

An idea appeared in Chen Ziyang's mind, but because the team carrying the air quality detector was separated from the other side of the wall, he had no way to verify his idea. However, he felt that his thoughts should not be wrong.

As he walked forward, Chen Ziyang took off his gas mask.

"Ziyang, you're crazy!" Seeing Chen Ziyang's move, Yang Lei, who was following behind, hurriedly shouted loudly.

"Don't take off your gas masks yet." After saying this, Chen Ziyang took a deep breath. Although the air here smells very bad, full of some musty smell and dust, after taking a few big breaths, Chen Ziyang did not feel that there was anything abnormal in his body, that is, the air here should be breathable.

After walking forward for a few more minutes, Chen Ziyang asked the others to turn off the valve of the oxygen tank and take off the gas mask.

"This ...... What's going on? After taking a few big breaths, Chen Sanjin showed a puzzled face.

"We're all in the hands of the designer of the dungeon, although I don't know who the designer of the dungeon is, but this person is really scheming, and the mechanism he designed has taken into account what the people in the organ will think. In addition, he thought about it very comprehensively, and even the air here was a trap he had set. ”

"Air? The air here is breathable, but why is the flame of a dog oil candle green? Chen Sanjin asked incomprehensibly.

"Hmph, that's exactly where the design of this dungeon is ingenious. Dog oil candles have a long history, since there was a tomb robbery industry, dog oil candles have been invented, and passed down from generation to generation.

In other words, after entering the dungeon, tomb robbers with a certain amount of experience will light dog oil candles to see if the air there can breathe. But now this thing has been slowly eliminated by air quality detectors.

But there were no air quality detectors during the Qing Dynasty. The person who built this dungeon made full use of the psychology of the tomb robber, he must have mixed something into the walls when he built the dungeon, and this thing will volatilize little by little.

If I'm guessing correctly, when the volatilized gas comes into contact with the flame of the dog oil candle, it turns the flame green, creating the illusion that the air here can't breathe, and scaring away the tomb robbers. ”

"What about air quality detectors? Everyone heard the siren, and that thing shouldn't have been deceived. ”

"The real air quality detector is very large and takes a very long time to analyze the gas composition, and that kind of thing is not easy to carry at all, even if you bring it here, it is useless, so the air quality detector carried by the team is actually a simple product.

This type of air quality detector is less precise and will sound an alarm if a large number of impurities are detected. The results of the detector can only be used as a reference.

First there was the flame of the dog oil candle that turned green, and then there was the alarm sound from the detector, and the old and the new detection methods were deceived by the air here, and we were the ones who were deceived.

After seeing the flame of the dog oil candle change color, the siren went off again, so a deep-seated thought came to our minds, that there was no way to breathe the air here.

Okay, there's no time to dwell on these things, save all the oxygen, maybe it's really useful later. ”

While speaking, Chen Ziyang followed the marks left on the ground before and walked back with the team, but after walking for a while, he suddenly stopped in place.

The traces that had been left on the ground and had been guiding the path back suddenly came against the front of a stone wall.

This discovery made Chen Ziyang stunned for a moment, and then he understood what was happening. It is estimated that after the mechanism wall was activated just now, the mechanism here was also activated, and a wall that should not have existed here suddenly stretched out, cutting off the passage that everyone had walked through before.

What used to be a "T" shaped passage has now become a straight road, and it seems that the team can only move forward.

"This ......" After seeing the stone wall blocking the tracks, Yang Lei and Umbrella Shishuai were also stunned, and cold sweat oozed from their heads.

An ominous feeling permeated the hearts of the two people, and what they were most worried about now was whether everyone was completely sealed here.

(End of chapter)