Chapter 91 The secret of the secret room

Chapter 91 The secret of the secret room

Four died at once?

If Brother Kai hadn't killed him, something must have happened in the building!

Combined with the wet soil falling from the cracks on the top, Gu Ji couldn't help but think of the water all over the ground he saw in the underground fire control room.

You must know that one of the causes of subsidence is the extraction of underground fluid resources.

For example, oil, natural gas, groundwater, etc.; in the 1920s, Xia State's Huzhou, Jinzhou and other places caused land subsidence due to concentrated groundwater mining in urban areas. The North China Plain also caused large-scale land subsidence due to groundwater falling funnels.

Gu Ji is still unable to determine the specific cause of this natural disaster.

Once it is really related to fluids, then if you fall into a pit, you are likely to encounter groundwater backflow!

"Creak..."

While he was analyzing the crisis, several tiny crackling sounds floated into his ears.

"Dong Bai, be careful!"

Liu Ye raised his head and shouted, then immediately pulled Bai Maoliang and flew to the side.

And Gu Ji seemed to have bulging eyes on the top of his head. He didn't even look at it. He just expanded his outer ears slightly and slid back to dodge.

Boom!

A huge boulder fell from the ceiling overhead, and along the huge triangular crack, a large amount of dark, wet soil fell, and soon it piled up into a pile of earth half as high as a person.

Bai Maoliang stood up in confusion and immediately looked at Gu Ji.

"Wang Xueming, is this place going to collapse? We have to leave quickly!"

"Don't worry, Mr. Bai, this is just the deformation of the concrete structure caused by the second vibration of the building. The ceiling is covered with a large number of steel bars and has strong tension. It won't collapse for a while..."

As Gu Ji said this, he leaned over again and picked up a handful of soil that had just fallen. The humidity was even greater than before.

About fifteen minutes or so.

There was a rush of footsteps in the fire stairway, and a thug held on to the door frame and shouted:

"Oh no, Mr. Bai, water, the basement is full of water, it's already flooded to the 6th floor of the building!"

"What!?"

Bai Maoliang's expression changed. There was really a wolf in front of him and a tiger in back. He had just finished dealing with the warlord faction, but he didn't expect to encounter another flood.

They haven't found a way out yet. When the water comes up, won't they be drowned alive?

"Wang Xueming, what should we do now? Is there any way to get out as soon as possible?"

"Yes, yes, but it depends on how well Mr. Chen and the others collect their tools..."

Gu Ji answered on his lips, but his eyes fell on the level countdown in the upper right corner.

When he went to the basement fire control room, the water had just reached the floor. Now, more than four hours later, it had poured into the fifth floor. Calculated simply, it would take nearly a day for the water to reach the top floor.

The premise is that the pouring speed remains unchanged.

"Do you know how fast the water is flooding?"

"This...I don't know. Brother Kai just asked me to come up and report the news in advance."

"Go down and make a mark, use the stopwatch on your mobile phone to see how long it takes to cover one meter, and report back every half hour!"

"What are you doing standing still! Go quickly!"

Seeing the thug standing there scratching his head, Bai Maoliang was so anxious that he went up and kicked him.

Half an hour later, the thugs came back again, with a clear look of panic on their faces and making it difficult to breathe.

"The water has reached the 8th floor, almost one meter in four minutes!"

"Why did it suddenly change so quickly? Wouldn't it only take more than 6 hours to flood here?!"

Mr. Liu was also frightened and his heart tightened, as if a cold snake had climbed up his back.

Gu Ji raised his head and stared at the broken ceiling. The water was filling much faster than he expected. It seemed that the second subsidence accelerated the inflow.

Cold sweat broke out on Bai Maoliang's forehead, like an ant on a hot pot. He walked anxiously back and forth in the office, faster and faster, and asked a few questions from time to time.

But Gu Ji's answer is: without tools, it is impossible to predict the time of self-rescue.

"Why hasn't this Chen Jianhe come back yet?"

"I'm coming!"

Just when Bai Maoliang was on the verge of an explosion, a burst of chaotic footsteps finally came from the corner of the building.

Chen Jianhe, a fat man with big ears, walked in with a group of group executives and employees, holding various building materials and tools in their hands.

Thanks to this guy being the manager of the real estate department, otherwise it would be really difficult to find these things quickly in a building full of ruins and in extremely dark light conditions.

"Brother Wang, do you think these things can be used?"

"Okay, you go and bring a big table over."

Gu Ji picked up a few steel pipes, took out two of them, passed iron wire through the hollow interior, connected them in series, and then wrapped a few turns of tape around the joints to secure them.

Wait for the staff to move the table over.

He stepped on it and came to the bottom of the crack.

Looking at the cracks where mud was still falling from time to time, Bai Maoliang's eyelids jumped wildly and he was a little worried.

"Wang Xueming, what are you doing? Don't collapse the roof!"

"Don't worry, Dong Bai, I'm just trying to see how deeply I'm buried."

As he spoke, Gu Ji inserted the steel pipe into the soil. Pan Xinli, who was standing by, saw that he was struggling and jumped on the table to help.

Along with the sparse soil, the two steel pipes were finally inserted into the soil, "Give me two more."

Chen Jianhe blinked, a little confused.

"Brother Wang, don't you want to use these steel pipes to reach the ground?"

"is there a problem?"

Gu Ji lowered his head and answered while wrapping the tape around it. This was the simplest method they could achieve at the moment.

"Although I, Chen Jianhe, have little knowledge, I also know the relationship between soil solidity when digging foundations. Generally speaking, the thicker the soil layer, the greater the soil bulk density, and the harder and denser the soil."

"Apart from the fact that you may encounter stone slabs along the way, as the steel pipe continues to penetrate deeper, the soil shear force, compression force and friction force you experience will become greater and greater, and the required force will increase exponentially!"

Perhaps because it was related to his own field, Chen Jianhe straightened his back and sounded preachy.

Bai Maoliang seemed a little doubtful.

Gu Ji's expression was very calm.

"Manager Chen is right, but you have overlooked one point. Soil hardness is mainly determined by soil texture, capacity and moisture content. Moisture content has the greatest influence. With high moisture content, soil has high compressibility, low strength, and the greater the soil hardness. It’s soft, and besides, didn’t I ask you to find a jack?”

As he spoke, he inserted the third steel pipe into the soil.

Chen Jianhe immediately picked up a handful of soil and squeezed it gently. It was indeed very moist. He nodded at Bai Maoliang and finally smiled awkwardly.

"Brother Wang is so knowledgeable. It's me, old Chen, who has mastered the art."

"Hurry up and help!"

Seeing that this method was feasible, Bai Maoliang urged the group's senior management and employees to get started.

After a while, Gu Ji inserted four steel pipes into the soil. When it was the turn of the fifth pipe, the manpower gradually became too much, as if it had hit something.

This is also what worries him the most.

The employees on the side were gasping for air one by one. Even Dong Bai and Master Liu, who were not working, were breathing louder and louder. It seemed that the oxygen in the building was gradually running out!

Gu Ji immediately arranged for his men to bring the jack and place it at the bottom of the steel pipe.

"You reach out and hold on to the connection, be sure to hold it steady!"

Everyone nodded.

As Gu Ji pressed the mechanical rod, the steel pipe continued to drill upward into the soil. Although it was very slow, it was at least moving bit by bit. At the same time, a lot of muddy water continued to flow down the inside of the steel pipe and the iron wire.

The fifth root, the sixth root...

Until the seventh steel pipe is added.

With a "snoring" sound, the employee responsible for controlling the steel pipe suddenly felt a loose feeling in his wrist.

"Brother Wang, the steel pipe seems to be through!"

Gu Ji quickly removed the jack and pushed upwards with all his strength. As expected, the steel pipe showed no resistance.

So he hurriedly lay down on the table and looked up along the opening of the steel pipe, but it was a pity that it was dark inside.

Bai Maoliang's eyes shone.

"Is it okay?"

"There's still one step left."

Gu Ji pulled the wire up and down, accompanied by a sour friction feeling, and a lot of mud and black water remained. When the wire could move freely within the pipe wall, he put his mouth up and took a sip.

A strong rotten earthy smell filled his mouth, but the previous feeling of tightness in his chest was gone.

It's fresh air!

"It's clear, Mr. Bai!!"

"real!?"

Director Bai, who was fanning the air, pushed aside the employees and came to the bottom of the steel pipe. After feeling the air flow, he hurriedly took two puffs.

Other senior executives were also extremely excited, and some even approached the steel pipe and shouted:

"Is there anyone outside?"

"Help!"

"We're buried underground!"

…

Gu Ji put his ear against the steel pipe and listened carefully for a while. Except for the sound of wind and some noise, there was no response.

"It's useless, such a small hole, it's hard to hear from outside."

"Then what should we do next?"

Bai Maoliang just asked this question.

There was a large number of footsteps behind them. Brother Kai and Chao Jun also led people to the top floor of the building. There were about seventy or eighty people. Some of the people in the group were injured and helped each other, some cried with joy, and some lowered their heads in panic.

And those people who are panicking are the employees who are afraid of being killed by the warlords and choose not to support the Bai family anymore.

Yang Chen naturally noticed those subordinates.

Now that he was in power, he naturally wanted to express his resentment immediately, "Dr. Bai, these people are all greedy for life and afraid of death, and betrayed the Bai family!"

"I-I didn't!"

"Director Yang, Director Bai, please give me a way to survive!"

…

Several employees knelt down and began to beg for mercy.

Just when Bai Maoliang waved his hand and was about to let Kaige and Liu Ye kill them, Gu Ji stopped him.

"Dr. Bai, it's not time to kill them yet. The water has already reached the eighth floor. We don't have much time to waste. If we want to get out as soon as possible, we will need a lot of manpower."

"Tell me, what should we do now?"

"It's easy, dig it!"

Gu Ji pointed to the crack above his head, "The length of each steel pipe is one meter, which means that we are now six and a half meters away from the ground. This depth is high or low, but fortunately there are enough of us."

"The width of this crack can accommodate two adults. Because the soil has high moisture content and is soft, you can easily dig the soil with just your arm strength. The other person is responsible for building the inner wall to prevent collapse. As long as the building no longer shakes, In less than three hours, we can dig a pipeline to the ground."

"Okay! Just do as you say!"

Bai Maoliang now completely regarded Gu Ji as his only hope for survival. He turned around and directed the group of employees who had just come up, "Did you all hear it clearly? As long as you are willing to do as ordered, I, Bai Maoliang, promise that after we get out, I will spare you the punishment for betraying the Bai family and will never be held accountable!"

"I heard everything clearly!"

"Thank you, Dong Bai!"

…

As soon as they heard that they were not going to die, the employees were still unwilling to sacrifice their lives. They immediately jumped on the table to prepare for excavation.

Gu Ji hurriedly stopped them.

"Excavation is very simple. The most important thing is to prevent landslides. Manager Chen, the people in your real estate department know better about civil engineering. You must pay attention to them. Every time you dig half a meter deep, you must compact the surrounding soil with your hands and use plastic boards and wooden boards. Once it’s attached, fix it with wire or steel pipe.”

"I know, isn't it the 'plug-in method'!"

Chen Jianhe spat, rolled up his sleeves and began to instruct his men to prepare the boards.

Seeing the crowd getting busy, Bai Mao felt a sense of security in his conscience and couldn't help but praise.

"Wang Xueming, you are really an all-rounder. I didn't expect to know so much. What did you do before?"

"I worked in the Miaowadi Army as a human defense officer before, and then worked in the mines for several years when I came to the Jinyuan Group, so I have a relatively clear understanding of these soil knowledge."

Gu Ji was talking nonsense.

In an illegal enterprise like Jinyuan Group, it is impossible for a miner to have time to learn so much knowledge.

The methods he used were all self-rescue methods in the "Military Disaster Prevention Manual".

Theoretically speaking, self-rescue methods after the earthquake are extremely limited, and they mainly rely on external government rescue. The first thing he can do is to keep his breathing smooth. This is one of the reasons why he struggled to remove the steel pipe channel from the ground.

Most of the deaths in geological disasters, 58%, are due to suffocation.

Then it is about finding a way to transmit the signal to the outside world. If the transmission is ineffective, we can only treat the wound, collect water and food, and ensure the stability of our own life activities.

And Gu Ji has been doing these things since he woke up from the subsidence.

Chao Jun's eyes changed as he listened, and he didn't know what he was thinking of writing.

More than two hours later.

Under the joint supervision of Gu Ji and Chen Jianhe, they finally dug out a mud path more than five meters long that could accommodate two people.

But as the channel gradually lengthens upward, the collapse pressure from both sides increases.

The iron wire and steel pipe racks that were finally fixed would still fall off due to slipping soil, causing landslides. In addition, the oxygen in the building now depends entirely on this steel pipe. The employees did not eat for most of the day. The further back they dug, the faster they became. slow.

"Crash..."

At this time, the employees who were leaning into the stairwell vaguely heard the sound of water rushing.

The thug responsible for monitoring the water level hurriedly ran in, and his shoes were completely soaked with water.

"Dong Bai, Brother Wang, the water has reached the 31st floor!"

"What!?"

"Isn't it said that it will take four or five hours to reach the top of the water? Only half of that time has passed!"

"Hey! Can you dig up the top quickly! The water has already poured in!"

"Oh my God, we're not going to drown here, are we?"

…

After hearing the news, everyone in the office panicked instantly. They all stared at the fire stairway and desperately urged the employees who were digging the tunnel.

Bai Maoliang's expression changed suddenly.

He grabbed the pistol from Mr. Liu's waist and pointed it at an employee who was stunned in place because of fear. Bang!

The employee was shot in the leg by Bai Maoliang and fell off the table in an instant, covering his thigh and screaming in agony.

The muzzle of the gun was raised again, frightening everyone in the crowd like quails.

"Dig it out right away! Otherwise everyone will die!"

"Hurry up! Director Bai has spoken, please give me more strength!"

Chen Jianhe shouted desperately and kept wiping the sweat from his forehead. He was scared to death.

Gu Ji didn't expect Bai Maoliang to be so anxious.

Turning his eyes, he suddenly had an idea.

"Dr. Bai, the water level has risen too fast. With the current digging speed, it is difficult to guarantee that no accident will occur. I remember that there seems to be a portable oxygen mask under the medical department. I can go down and get it in case of emergency!"

"real?"

Bai Maoliang was overjoyed when he heard this.

But Mr. Liu on the side said: "The 30th floor has been flooded. Even if you remember the location of things, you still have to take detours to look for them in extremely dark light conditions. You also have to carry things. The amount of oxygen consumed every time. It’s not something ordinary people can bear, unless you have received special freediving training.”

Free diving training, apart from extreme sports and professional divers, is only practiced by the navy or special forces.

But Gu Ji was just an army mercenary from Myawaddy.

If you say you can free dive at this time, it will definitely arouse suspicion.

But he didn't panic at all. He took off his backpack and took out the portable fire respirator selected by the system reward. "This is the equipment I got from the fire control room. The 6.8L respirator generally has a theoretical use time of 40 minutes. In practice, About half an hour, enough time for me to get my stuff back.”

"Great! Go and come back quickly! Liuzi, you come with us to help."

"yes!"

Looking at Mr. Liu who was coming over following Bai Maoliang's order, Gu Ji narrowed his eyes.

I didn't expect this old guy to be so cautious.

Now that he has reached this point, he still needs someone to watch him.

That's right.

Gu Ji took the initiative to suggest going to the medical department to get an oxygen mask. In fact, he was just to explore the side mission. But even if someone followed him, he didn't panic. The sixth master couldn't get into the water anyway.

However, he could not trust the Bai family's thugs, so he called Chao Jun and Pan Xinli to help him pull the safety rope.

When we arrived at the stairwell on the 31st floor, the water level had already reached the second section of the building.

Gu Ji removed all his equipment, leaving only a strong flashlight, and put the portable respirator on his body. In fact, the structure of this thing is very simple. It is an orange reflective vest with two gray high-pressure gas bottles similar to large bottles of Coke fixed on it. , lead out a hose connected to the breathing mask.

The North Korean army tied a safety rope around his waist.

"Be careful!"

"Do not worry."

Gu Ji grinned, made an "OK" gesture, and immediately entered the water with a "pop".

Gululu...

Groundwater quickly poured into his ears, cutting off his hearing. At the same time, his vision was pitch black, and he had to face underwater pressure from all directions. This extreme environment caused his heart rate to increase, his nerves to tense, and his subconscious to rush. Breathe.

Fortunately, Gu Ji often swam in college.

He turned on the strong-light flashlight. As a professional fire-fighting equipment, waterproof, dustproof and high-temperature protection are essential elements. With the light, the physiological tension was immediately relieved a lot.

In order to find a darkroom before, he had carefully looked at the detailed layout of the 30th floor and naturally knew the location of the oxygen mask.

So Gu Ji now has enough time to search.

"Wait a minute, why is the height of this location a bit short..."

I didn't notice it when I was walking down there before, but when I was floating on the roof and swimming, Gu Ji found that I needed to keep swimming downstream. The roof seemed to have an inclination.

So he swept the light along the roof of the shed, found a crack, and kicked it hard, but the cement brick did not move at all.

It’s too difficult to exert force underwater and it wastes oxygen.

Gu Ji could only find another way.

He came to the office with the lowest height from the top of the shed. Due to water erosion, the file cabinet moved and a security door was exposed at the back. The door was also equipped with a combination lock.

Fortunately, due to the deformation of the building, the security door was squeezed open a crack.

It’s not easy to exert force outwards, but it’s different when you have a place to draw on.

Gu Ji put the flashlight on his waist, stepped on the wall, grabbed his hands through the crack of the door, and pushed it out with force. He tried it two or three times, only to hear a "snoring" sound, followed by a few bubbles floating out, and the door It’s finally open!

He swam through the door and took out his flashlight.

In an instant, pale faces appeared in his sight, which sent a chill down his spine and made him feel goosebumps!

[Side goal: Find the 30th-floor darkroom successfully! 】

[Open the hidden goal: Find the hidden secrets of Jinyuan Group! 】

Gu Ji had temporarily forgotten the system prompts, but was attracted by the three corpses floating in front of him. They were all male, tall, naked, with red bloodshot eyeballs, and they looked vicious.

Strangely enough, the cause of their death was not being crushed to death by earthquake debris or drowning.

Rather.

Kill each other!

Yes, the bodies of the three people were covered with various wounds. They were either stabbed in the throat by glass fragments from instruments, or the back of the head was injured by an iron object.

The scariest thing is.

The expressions of several people were very strange, especially the cruel and perverted smiles on their lips!

Outlaw!

This was the first instinctive thought that flashed through Gu Ji's mind.

[If you find special items, do you want to exchange them for crisis points? 】

Another level has ended, and I owe 62,000