In the narrow iron room, there is a circular iron door in each of the four directions of southeast, east and northwest.

Even the top of your head and under your feet are no exception.

Such a strange design, even I have never seen it before, even if I often die in the underground fortifications of the Japanese army.

I slowly pushed open the iron door above, but inside was a deep tunnel that could only be barely crawled.

Even the doors under your feet and even in the south, east, west, and west are a deep secret passage to the unknown darkness.

If nothing else, the iron door above his head must be the same.

I didn't rush out, but told everyone in detail about the scene I saw before I fell unconscious.

I only saw Xiao Yue's face turn pale little by little, and I didn't dare to tell the fat man and Xiao Yue about the miserable white ghost hand I saw.

Otherwise, I'm really afraid that they won't be able to bear it.

The design resembles a cramped prison, but the walls are made of metal.

Even the deep secret passage behind the round iron door makes people a little scary.

"You say..., could this be built by the little devils to hold prisoners in the first place?"

The fat man's voice was low and excited, as if the new and strange environment in front of him was a new adventure for him.

But I don't think so, it's all about being alive right now.

The three-person team has a clear division of labor, and since it is a prison, there must be an end.

So the three of us decided to set off along the tunnel to the east to see where it would lead.

The fat man's bloated figure climbed at the back of the team, and in the middle was Xiao Yue, and I was the one at the front, after all, except for Xiao Yue, who was slender in the team.

The rest is only me who is quite flexible, and if there is any emergency in this narrow tunnel, I can barely escape with the two of them.

There are no accidents.

However, the tunnel didn't seem to be very long, and when I poked my head out again, I couldn't help but be a little surprised by what I saw.

It turned out that behind the tunnel was still connected to the iron space like a prison just now.

It is also four strange circular iron gates in the southeast, northwest and northwest, and there are still deep dark passages inside.

"What the fuck is this!"

Xiao Yue and I worked together to drag the fat man's bloated figure out of the tunnel, and the three of them couldn't help but be a little surprised and lost when they looked at the environment in front of them that was exactly the same as just now.

But we didn't despair, and we still went through the hole to the east, this time with the fat man taking the lead.

If there is any danger, return along the same path, and Xiao Yue, who has the most flexible body, is responsible for the safety of the tail of the team.

In this way, they passed through four iron prisons in succession, in the same direction, in the same endless tunnels.

By the end of the day, the team was already a little overdrawn, everyone's faces were covered with hot sweat, and we had to adjust and rest for a while.

It was only then that I noticed a black figure suddenly appear in the corner.

When the figure appeared, the three of them didn't notice when they arrived.

"Shhhhh

The long knife that I borrowed from the four iron riding stone poles had been thrown away by me because it was too heavy to climb the stone steps.

At the moment, he had to take out the dagger at his waist and lean closer to him with a gentle step.

I gave the fat man a look and motioned for him to protect Xiao Yue's safety, and I took a risk and walked towards the black figure.

It wasn't until there was only two or three meters left that I vaguely noticed that the figure was facing away from me, and he was facing the corner of the wall with a look of "thinking about it".

The rickety body can't help but remind me of Wu Laogou.

I swung my dagger and tried to launch a sneak attack, but the vibration in the air shattered the already extremely corrupt corpse into the wind.

All I had left was scum and a round rumbling head, rolling at my feet, fighting for the black hole, staring at me.

I seemed to see the despair he had before he died, this guy was trapped here alive.

The fat man's guess was right, and I thought back to the old clothes worn by the dry corpse and knew that this was indeed a prison.

It's just that I don't know why the Japanese army built the prison so strangely at the beginning, all the way to the east, it has passed through seven or eight spaces that are also covered with iron gates.

Maybe this person did the same thing and struggled with before he died, just like we did.

It's just that he didn't know why, but when he stopped here, he was completely dead.

Xiaoyue's words at the critical moment made me and the fat man shudder.

"There's one thing I've been hiding from you..., and that's that the hands on my watch have been standing still since I called in."

"What do you mean?"

Xiao Yue rolled up her cuffs and pointed to the bright watch on her wrist and said cautiously.

"This watch was left to me by my father and has never had a mechanical failure over the years... But now you see. ”

She pointed to the hands on her watch, her face a little dazed.

I immediately reassured that it might be due to water or moisture, and how could a watch not fail after decades of use.

The fat man also nodded with a little doubt, only Xiao Yue next to him was still stubborn.

"No, this watch has stopped working since waking up here... This has never happened before.... ”

She blinked wide, her eyes as if she was trying to prove that she was telling the truth.

It was the space that was wrong, not the watch she was carrying had a mechanical failure.

"Enough! If I say no problem, no problem. ”

For a moment, I didn't know why my temper exploded, the fat man was silent on the side, and Xiao Yue still maintained her previous posture as if she couldn't believe it.

I would say such a thing to her.

I subconsciously touched the full mask on my face, and said to myself, how could I lose my temper with her, this was not my intention.

With a brief break, the procession proceeded again, only this time when it reached another cramped "prison" behind the tunnel.

Everyone heard a crisp sound of gear churning, clicking...

This time, in the cramped space, I still saw a corpse in prison uniform, and I thought that this person, like the old man above, was a victim of persecution by the Japanese army or a victim of research.

But he didn't think that he had just moved his body away, but he found that on the iron wall he was facing was a strangely shaped pattern.

On closer inspection, it looks like a three-dimensional square, with countless dotted lines dividing it into small, narrow cubes.

This guy seemed to be studying something before he died, and the entire iron-walled prison was filled with six sides, six iron doors, and a ceiling overhead.

The rest of the walls were carved with intricate calculations, and I gently wiped off the dust on them, and the contents were a little dazzling.

Only Xiao Yue was stunned on the side, and then the expression on her face gradually froze, as if she had made some major discovery.