The Ninth Secret Bureau

"You know Mawangdui tombs, right?"

After lighting a cigarette again, Fatty Huo began to talk to Chen Xian about the "key", and at the same time they returned to the dean's room again, looking for the next way in this burnt-to-ruin vacant house. The secret corridor mentioned by Hong Jinxi.

"Mawangdui in Changsha?" Chen Xian thought for a while, and asked, "Isn't it the tomb group that was unearthed with no decayed female corpses?"

Fatty Huo nodded, wandering around the room, and continued to talk to Chen Xian.

"In 1972, five keys were unearthed in Mawangdui. From a certain perspective, they are beyond the modern concept of ancient cultural relics and are more like a high-tech product."

Hearing this, Chen Xian's interest suddenly grew again, and his eyes became more and more curious.

"How high-tech?"

"You'll know when you listen."

After the five keys were unearthed that year, the superiors quickly took it seriously and put in strict protection measures, requiring all departments to cooperate fully and sending these five keys to the capital headquarters as quickly as possible.

But no one expected that under such strict protection, there would be accidents.

No one had access to the safe for storing the keys on the road. There were dozens of armed personnel guarding them. Eight surveillance video cameras that were turned on 24 hours a day were installed on the top, bottom, left, and right to ensure the safety of the five keys.

It can be said that in that era, being able to be protected like this was already considered the ultimate.

But when the transport vehicle arrived at the headquarters research institute, the experts opened the box to take a look...

Only four of the five keys remain, and one of the keys has disappeared.

"No one knows where the key went or how it was lost." Huo Fatty said here, as if thinking of the chaos that year, he couldn't help but shook his head, "Our department is also in chaos. We started a thorough investigation, first checking the people inside us, and then checking other people, but in the end we didn't find any clues."

"It wasn't until the surveillance video of Hong Jinxi's theft of Lin's vault was exposed in the late 1990s that we found that the key was on his body."

"He stole the key back then?" Chen Xian asked curiously.

"It should be not. Time is not right." Fatty Huo shook his head and said, "We also wonder why the key is in his hand, but now that Hong Jinxi is dead, this clue is broken."

After that, Fatty Huo took a cigarette and continued talking with a subtle expression.

"After expert appraisal, these keys are not related to the Mawangdui Han Tomb, and are not products of the Han Dynasty. They can be traced back to a long time, even surpassing the Xia Dynasty BC, and the engraved fonts on the keys are also unseen. It's more complicated and harder to interpret than Oracle."

Chen Xian listened with enthusiasm and motioned for Fatty Huo to continue talking.

"Of course, even ancient objects are considered cultural relics. The reason why I say that they are beyond the modern concept of cultural relics is because of their characteristics."

"What are the characteristics?" Chen Xian asked.

A strange look flashed in Fat Huo's eyes, his tone became a little complicated, and he replied in a low voice.

"unlock."

Yes, the most unbelievable ability of these ancient keys is unlocking.

Electronic, mechanical, digital, password.

No matter what kind of lock, these ancient "keys" can be opened, and the way of unlocking the lock is weird, beyond ordinary people can imagine.

"Those keys seem to be smarter and can recognize all locks. As long as they lean against the unlocking position, a lot of powder will flow out of the top to forcibly penetrate the inside of the lock. The color looks like lead powder."

Fatty Huo had seen the other four keys, so when he said these words, a hint of surprise flashed in his eyes.

"The powder that flows out of the key is relatively coarse at first, and the powder behind is very fine, but in the end it is directly invisible, at least invisible to the naked eye."

"So...Is the key unlocked by those powders?" Chen Xian asked thoughtfully.

"Yes." Fatty Huo nodded.

"Any kind of lock can be opened. This is a master key." Chen Xian smiled, and he probably understood a little bit of his superiors' eagerness to find the key.

Not to mention how useful they would be after taking the key back, it can be seen from Hong Jinxi that they couldn't bear the consequences of letting the key go to the people.

Who has this key and has a sense of anti-reconnaissance, wouldn't it become a thief?

"I've said everything that should or shouldn't be said, your mouth can be more serious, don't talk nonsense, things about the key are considered confidential in our department, and it will be troublesome to say it." Huo Fatty warned.

"I know." Chen Xian nodded with a smile.

After satisfying Chen Xian’s curiosity, Huo Fatty slowly became anxious.

Because I wandered around in the dean's room more than a dozen times, I still couldn't find the entrance of that secret corridor.

Fatty Huo was smoking a cigarette, his brain was running fast, recalling the scenes of interrogating Hong Jinxi.

Didn't he say that there is a corridor here? Why can't I find it? Could it be that he lied to me?

"This **** year has to be found!" Fatty Huo was a little anxious. He pinched out the cigarette **** in his hand and threw it on the ground. I don't believe it..."

"Are you sure there is a corridor here?" Chen Xian asked.

Huo Fatty told him about the corridor before, but he couldn't find it after searching for a long time, and Chen Xian also felt a headache.

"That's what Hong Jinxi said anyway." Fatty Huo frowned, his expression very distressed.

Chen Xian nodded, and silently began to walk next to the corner, tapping on the wall with his hands as he walked.

According to the architectural construction of the mental hospital, it should be a conventional frame structure. Except for some non-load-bearing walls, the rest of the walls should be solid concrete walls.

The dean’s room is close to the inside of the corridor. The non-load-bearing walls on the left and right sides make the percussion sound more clear, while the sound feedback from the front and back walls is much dull.

Under Chen Xian's patient percussion, he gradually heard a different voice.

"boom."

This sound was extremely crisp.

There was a little echo, but it was hollow inside.

"Is it in the wall?"

Chen Xian looked at the wall with some doubts, Huo Fatty also hurried over and knocked on the wall a few times with his hands.

"Here...it should be correct!"

Fatty Huo was also relieved, a rare smile appeared on his heavy face, and he pushed the golden glasses on the bridge of his nose.

"Hong Jinxi said that the corridor is behind the dean's room. This position is facing the door of the dean's room. If you can match the number, let's... eh?"

Fatty Huo was taken aback for a moment, looked at Chen Xian who was doing leg presses, and asked confusedly: "What are you doing?"

"Open the door, we can't go through the wall, right?"

Chen Xian smiled, continued to press his leg a few times, and then slowly stood up.

Chen Xian was still very confident of his strength. In his opinion, kicking such a hollow wall was nothing at all. Rather than gouge the wall with tools, he might as well just kick it.

Before Fatty Huo had time to stop him, Chen Xian had already jumped up, and if he kicked on the wall with great force, he made a loud bang.

In an instant, the wall dented.

Judging from the big hole that Chen Xian kicked out, it was indeed hollow inside.

"It's inside! We really didn't find it wrong!" Fatty Huo was relieved when he saw the metal door frame inside through the gap of the pit.

It seems that Hong Jinxi didn't lie. This is indeed the entrance of that corridor. As long as you pass through this metal door and then go through the corridor behind the door, you will finally reach the most secret patio space.

"The corridor you are talking about is behind this door?" Chen Xian asked.

"Yes, you'll see it when you open the door."

Fatty Huo said, he leaned forward to the hole in the wall again and looked inside carefully.

The outer wall is only as thin as bricks, no wonder Chen Xian can kick it through, and the inner door is nearly 20 centimeters away from the wall...

Why did they hide this door in the wall?

Is it possible that every time I go in, I have to gouge the wall open?

Don't they find it troublesome?

When Fatty Huo thought of this, he was even more puzzled, but at this moment, he heard a strange sound.

The sound is very noisy, and the voice is heavy, coming from that door.

It sounds like some kind of gasping sound, and judging from the sound...

More than one person was panting.