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The area of ​​the entire circular space is not small.

It's half the size of a football field.

They saw that there were ten doors on the surrounding walls.

To the same place as they came in before.

Even above the head of this space, there is a passage.

It opened vertically, and I don't know where it leads.

The whole space looks very shocking.

It's like the hub of an underground secret facility.

And on the walls of this space, there are indeed a lot of words similar to graffiti.

But the clarity of these words is really not flattering.

Some can't even see clearly.

When Zhang Weishan saw these words, he couldn't help being overjoyed, he quickly took out his phone, and took out the hexagram diagram that the old man showed him back then for comparison.

Soon he discovered that it was the same language, that is to say, Zhang Yingchuan's father told him the place.

right here.

The place where the complete hexagram is recorded is here.

Zhang Weishan was very excited.

However, before he got up, Old Wu on the side pointed to one of the walls and said.

"It's not right here, the writing on the wall is disappearing!"

"Look at it!"

Zhang Weishan immediately became nervous when he heard this, and hurriedly got up to look.

I saw that the writing on the wall was actually gradually disappearing.

He was a little anxious, but he quickly thought of what the old man had said before.

He said that the hexagrams here are not eternal.

Rather, it will change over time.

And this change is cyclical.

That is to say, after a certain period of time, the hexagram here will change once.

But no matter how you change the hexagram, as long as your hexagram is correct.

Then the corresponding place will not change.

It sounds as if the hexagram here would change without any meaning.

But it's not.

It's like picking up a key and knowing that it will definitely open a door.

But I don't know where the door is.

And the hexagram map can tell you where the door is.

You can find this door according to the diagram.

But if you don't know that this is a hexagram, then every time you see it changes, you will have no way of knowing what it is.

So the change of hexagram map is not to mislead those who want to find the place.

It's about misleading people who don't know anything about it.

This is more of a screening mechanism.

You can only use it if you know what it is.

And in a short time you can't crack it at all.

Over a long period of time, it will change, and it will also increase the difficulty for you to crack.

When Zhang Weishan saw the changes in the ancient characters on the wall, he knew that the change of the hexagrams might have already started.

It was a coincidence that they came here just in time for this change in the hexagram.

Since it is changing, Zhang Weishan is not in a hurry.

He took out his phone and switched it to camera mode.

Prepare to take pictures here after all the changes in the Huigua map are completed.

It is impossible for him to copy all these ancient characters in a short period of time.

Fortunately, modern people have the convenient ability to take pictures.

Otherwise, if an accident happens, it will make people vomit blood.

After listening to Zhang Weishan's explanation, Lao Wu and others relaxed.

Everyone rushed here all the way, and they were indeed exhausted.

In addition, it was night again, and I was really tired, so I started to rest where I was.

Zhang Weishan and Xiao Zhang are in charge of the night watch, and at the same time pay attention to the changes of the ancient characters on the wall.

The two of them endured for four full hours, but they couldn't bear it any longer, and finally fell asleep.

I don't know how long I slept.

He didn't wake up until someone shook him.

It turned out that everyone else was awake.

Old Wu was checking the situation in each hole with a flashlight.

Seeing Zhang Weishan wake up, Xiaoxi said.

"This place is flooded, and it seems to be raining outside again!"

"I can't sleep anymore!"

Zhang Weishan also heard the sound of water droplets coming from around.

There also seemed to be cracks near here, and water dripped down.

"What happened to those ancient characters?"

Zhang Weishan asked.

After waiting for so long, those ancient characters should be almost the same.

Xiaoxi pointed to the wall and said.

"Almost all come out, hurry up and take pictures!"

Zhang Weishan nodded and hurriedly got up to shoot.

However, he found out as he filmed.

In the place where they were, on the surrounding walls, water began to flow down at some point.

The water has already covered the wall.

A small waterfall formed.

The water flowed down the wall and into the corners on the ground.

There is actually a very inconspicuous water diversion tank in the corner.

All the water was led to the cave where they came in.

The old king said.

"That pit should be a reservoir!"

"The people of the Southern Demon Kingdom live here, and clean water is the most important thing!"

"The bottom of the deep pit may be where they store water. No wonder there are so many people guarding it!"

"Don't make a fuss, you hurry up and finish the filming, we can be regarded as I have completed the task, so let's go!"

"This place is so fucking unbearable!"

Lao Wang was talking, but Lao Wu walked back, talking as he walked.

"Brothers, I thought of two questions, I think you have to listen!"

"First, do you say that the change of this ancient character has anything to do with the periodic death of this man-eating vine?"

"For example, every time the man-eating vine dies, the ancient characters here will disappear!"

"And when new vines grow, these ancient characters will appear again. Do you think this is possible?"

Xiao Zhang frowned upon hearing this.

"If so, wouldn't there be new vines growing now?"

"Then our blasting the sky before will become meaningless!"

"Yup!"

Old Wang also nodded.

"I'm just guessing, not necessarily true!"

"The other thing is the second thing, I just checked all the caves carefully!"

"I discovered a very strange phenomenon!"

"I found out that there are a total of ten caves here!"

"But nine of them were chiseled in!"

"Only one is chiseled backwards, do you know what this means?"

Old Wu looked at everyone with a mysterious expression.

Everyone didn't speak, they already understood what Old Wu wanted to express.

Nine entries and one exit, that is to say, if there is a sequence between this cave and other entrances.

Then this cave can only belong to the second level.

The first level should not be here.

In other words, the cave was discovered later.

Because one of the passages was chiseled to the direction of this cave.

Someone must have dug a passage and found this cave.

Then they began to use this cave as the core, and carved other nine passages in all directions.

The one on the top of the head should also come from this way.

That makes sense.

If this is a treasure cave, then this real treasure will not be hidden here!

Instead, it is hidden in the upper level.

That is, the deepest part of the passage that first discovered the cave.

That's where it all started.

Having said that, this is not a treasure cave, so if they go against the passage, they will definitely be able to find their way out.

There is no need to go back the same way.

The original road was not easy to walk, and the passage of corpses was enough to make people suffer.

If there is a new channel to go out, that is naturally the best.