On the day Chen Yang returned to the East China Sea, a Z-9 multi-purpose helicopter slowly landed on the apron in a distant mountain in western Sichuan. The wind and waves of the rotors rolled up, and the blowing grass rolled backwards.

Cheng Pan, carrying a gray password box, jumped off the open hatch door, and immediately two officers who had been waiting for a long time, walked forward.

"Is it Colonel Cheng?"

"I am."

"Hello, Colonel Cheng, the leader asked us to wait for you here. He is already waiting for you at the base."

"Well, then, let's go first."

Cheng Pan nodded, followed the two officers and got on the car in the driveway outside the tarmac.

When getting into the back seat of the car, Cheng Pan first had to put the gray password box at his feet, and at the same time he held the box in his right hand to make sure that the box would not leave for a moment, and then he looked out the window.

This base is located in the mountainous area in western Sichuan. It is under the jurisdiction of the Chengdu Military Region on the surface, but in fact the subordinate relationship is not as simple as it seems. There is no jurisdiction over the base within the military region.

In order to prevent satellite reconnaissance, the ground infrastructure of this base is not much different from the other military bases. At least Cheng Pan watched from the left and right, he could not see much problem from the surface.

However, after the car drove for more than ten minutes and gradually approached a tunnel in a mountain, the martial law around it became significantly more serious. Before entering the tunnel, not only did Cheng Pan's identity be verified again, but the other two officers in the car also had to verify their identities before entering the tunnel.

As a soldier, you must not ask too much if you shouldn't ask. But even if Cheng Pan doesn't ask, he can tell that this long tunnel should be an underground facility to prevent nuclear strikes built in the 1960s.

However, it should have been renovated and reinforced now to ensure that the tunnel is more stable.

The car continued to drive forward, the tunnel grew deeper and deeper until it took eight minutes before stopping in front of a level.

The so-called level is actually a steel gate that blocks the entire tunnel. You must verify your identity again before you can open the small door so that the vehicle can enter.

Cheng Pan has only seen this strict inspection method at a confidential base in Qinghai, but it is a nuclear weapon base, not here.

No. Strictly speaking, the things preserved by this base are more important than nuclear weapons!

After patiently waiting for the fingerprint and iris to be checked, Cheng Pan finally truly stepped into the core of this base.

This time the vehicle stopped shortly after driving. Two officers took Cheng Pan into a passage. After five minutes, the two officers stopped and turned around and said, "Col. Cheng, next we need to disinfect and change clothes before we can enter the base."

"Okay, I understand."

Cheng Pan was not at all dissatisfied. He took off his clothes and disinfected his body according to the procedure, and then changed into a prepared military uniform. Then he followed the two of them through a passage and truly stepped into the core of the base.

"This...is so big!"

The core of the base was beyond Cheng Pan's expectations. The first thing he saw was a deep cave with a diameter of hundreds of meters and bottomless depth. Surrounding the perimeter of the deep cave, there were floors built from top to bottom in sequence.

Cheng Pan had a high level of contact with top secrets, even one of the person in charge, so the two officers explained to him: "The 17 base division starts from our highest level, and is divided into 49 floors below, with a total depth of more than 200 meters. For each floor down, the higher the top secret level, the stricter the disinfection requirements."

"And there are lounges, libraries, shelters, recreation rooms and laboratories on each floor, which ensure the psychological and physical health of the researchers here to the greatest extent."

Hearing the commentary between the two, Cheng Pan nodded uncontrollably.

To build such a large underground base, unless those super rich people are willing to spend most of their own property to build it, otherwise only the state's power can support it. And only the big country has the strength and funds to build it. Ordinary middle-class countries are unable to afford such huge costs.

While explaining to Cheng Pan, he led him through the corridor to the conference room on this floor. A man about 60 years old was sitting on the first floor of the conference room.

"Hello, Chief..."

"Hello, Chief..."

Cheng Pan saluted and then sat down respectfully.

This old man is not conspicuous, he is only a rank of lieutenant general, but he is one of the heads of this No. 17 base and must not be underestimated.

"Haha, Xiao Cheng is here... I have heard that you are young and promising, but I didn't expect you to be so young."

Indeed, Cheng Pan could climb to the colonel at his age of about 30, which was enough to be considered young and promising, but what he relied on was not relationships, but truly excellent skills.

"The chief praised it."

Be humble, Cheng Pan put the white password box on the table and pressed his thumb on the fingerprint reader. After a short while, the password box opened automatically with a "click".

He took out a document and Cheng Pan respectfully handed it to the old man.

Liu Yanqing, who was rank of lieutenant general, took the document with a smile, looked through it carefully for a while, and said, "Well, it seems that the above is really going to transfer you. This place is not as boring as you were before. It is both boring and unfree. Are you mentally prepared?"

"Chief, Cheng Pan is ready at any time. As long as the country needs it, there is no place to go!"

Cheng Pan said seriously.

"Okay, that's what you want."

Liu Yanqing praised him and handed over another document on the desktop: "It just so happens that you can take a look at this too."

"Uh, this is..."

Cheng Pan looked down and saw four big words "Black Stone Plan" printed on the cover of the document, and there was also a line below it: "Top Secret Document - Anyone who reads or leaks the content of this document without permission is illegal and can be handed over to the military court for life imprisonment."

Of course, this trait is fake. How could it be handed over to the military court for trial? It's just a joke. If you really want to leak this secret that is different from ordinary top-secret documents, within 24 hours, the leaker will completely evaporate from the world and you will never wait for the opportunity to hand it over to the military court for trial.

The actual level of this top-secret national document is already above ordinary top-secret administrative documents. Once leaked, it will cause very serious damage to national interests. Even if the military rank is reached, it cannot be read without relevant permission. Otherwise, it will be a crime of treason.

The entire file file is about fifty pages. Cheng Pan looked around and found that there were text explanations and photos. He actually explained the source and construction of the entire base from beginning to end.

It is also the reason and explanation of the origin of the entire "Blackstone Plan".

I touched the first black and white photo. It was taken when the base tunnel was completed in the late 1950s. The more I looked back, the photos gradually changed from black and white to color, from unclear to clear, and Cheng Pan also gained deeper understanding of the reasons for the construction of this base and the "Black Stone Plan".

After reading more than a dozen pages, Cheng Pan was surprised when he saw a photo.

It was a second-generation leader of China who was about 1.5 meters tall and had a smile on his face. He was taking a photo with a group of researchers.

"Have you finished reading?"

Liu Yanqing sipped the tea.

Carefully put down the file, Cheng Pan replied: "Chief, I've finished reading it."

"What do you think?"

“Um…”

Cheng Pan thought about it and replied seriously: "The Black Stone Plan must continue to be implemented, which is very important for the future of our country."

"Well, you have also been in contact with this aspect for a long time, and you should also understand the importance of this."

Liu Yanqing sighed: "Base No. 17 is not more than the special research institute you have been to before. The research here is really important, so your responsibility is heavier. I believe that you are mentally prepared for this, so I won't say more."

"As for the other hand, your military rank will not change, but the level will be increased by one level. You can go to the rest of this base except for the forty to forty-ninth floors."

"yes."

Cheng Pan was actually surprised. He was in the special research institute before, but he was one of the people in charge. He was already high enough and had come into contact with many top secrets that even ordinary core leaders could not reach. However, he did not expect that when he came to this No. 17 base, he raised his level by one, but he was unable to enter the forty-twentieth floor.

The meaning of this is very big, not only shows that there are more important things in the entire base that he cannot touch.

And it also means that some things are no longer as simple as state secrets.

After letting go of these thoughts, Cheng Pan came back to his senses. Liu Yanqing had asked an officer to take him to his lounge.

His lounge is on this first floor. Just because the disinfection and inspection on the first floor is the most relaxing, there is only disinfection when entering and leaving the base, so there is no other excessive inspection. It is definitely much more convenient for life.

Walking in the corridor, I often saw many people. According to Cheng Pan's analysis, the members of the entire base should be about 80% of the members, and less than 20% of the soldiers. The rest of the people of some kind are death row prisoners.

Some of the prisoners who need to be executed in prisons on the Western Plateau will be selected "lucky" to be selected, and they are the "villain mice" in the final clinical trial here.

Anyway, the number of people who execute the death penalty every year is state secret, and no one knows exactly how many people will execute the death penalty. If a part of them is drawn, there will be no leakage at all.

Moreover, the death row prisoner will be sentenced to death after all, so it is better to contribute the last bit of strength to the country here.

This is also considered atonement for the sins of life.

No one would feel pitiful for these death row prisoners, and Cheng Pan would be no exception. On the contrary, there were about ten people who died at his hands, and he would not even have a trace of sympathy.
Chapter completed!