"Since you're here, why don't you go to the mountain, isn't the so-called secret realm in the legend always hidden in the mountain?"

This was said by Yao Yao.

It seems that she is quite an assertive girl.

Secretly looked at her, and found that this woman really had picturesque eyebrows and eyes, an indescribable softness, and a trace of ...... Aristocratic temperament.

But she behaves like a little girl next door, which is rare.

The four of them decided to head towards the mountain.

On the way, the mountains became higher and higher, but the trees in the mountains gradually became greener.

At sunset and dusk, the mountains in front of me are so big that you can't see the end, and you can see a lot of white bones on the side of the mountain.

It's scary.

Zhao Xiaobai saw clearly: Among them, the skull is like a human bone!

Startled, he couldn't help but grab the hilt of the sword with one hand.

"It's eerie here, so be on your guard. ”

"In this cloth bag, there is food, water, pine oil knot and flint, you can bring it yourself!"

"If you get separated, you can hold on for a while. ”

After speaking, he took the cloth bag on the little junior sister and stuffed it into Gao Yi's hand.

At this time, the sky was getting dark, and the four of them stood quietly in the forest.

According to the feeling, not far ahead, it should be the so-called secret realm.

The peaks are silent, the mountains and forests are silent, and between heaven and earth, there is a slight west wind blowing, and a sense of depression suddenly spreads.

"The wind is sluggish and the water is cold, and the strong man will never return once he is gone!"

Gao Yi sighed and read two very old poems, which had a little tragic taste of being generous to death.

Then he said: "Don't rub it in, let's go, let's go, it's all here, and if you don't go in and see, you won't be blind." ”

Sure enough, he is not afraid of death.

Zhao Xiaobai glanced at him silently, motioned for the little junior sister and Yao Yao to go in the middle, and he walked in the last fortification, and said in his mouth: "Gao Yi, you take the lead, I will break off, let's go." ”

On the way to the highest mountain, there were old marks of broken trees, green grass on the ground, and signs of lodging in the direction of the mountain.

It's just that this road is very wide, what kind of behemoth passed by here and broke and overwhelmed the trees and flowers on the side of the road?

The grass on the ground is falling in the same direction, or is it a sign of something dragging for a long time?

There are bones everywhere on the roadside!

Could these traces and bones be caused by some man-eating monster dragging people into some secret lair from this road?

Thinking of this, Zhao Zihan only felt that his heart jumped violently, and he couldn't help but feel creepy!

Just as he was frightened alone, Gao Yi's cry came from the front, breaking the silence: "What a big hole!"

Zhao Xiaobai hurriedly walked a few steps, and at the bottom of the towering cliff, a huge hole three zhang high and more than two zhang wide came into view.

The dark mouth of the cave is like a huge mouth, as if waiting for people who can't help themselves to throw themselves into the net.

The four of them stood at the entrance of the cave a little overwhelmed, and the timidity and fear slowly dissipated at this time, replaced by inexplicable shock.

"This is not a miracle of nature, this is a man-made hole!"

Yao Yao's heart was as delicate as hair, touched the brown gray soil along the edge of the cave, and quickly made her judgment.

Zhao Xiao stepped forward, looked at it, touched it with his hand, and suddenly knew in his heart: This is the remnants of cement.

Well, yes, it's the weathered remnants of cement.

Yao Yao knows cement?

Then an even bigger question mark arose in his mind: So, what the hell is this place?

If I'm not mistaken, in that world, cement was produced early in the Industrial Revolution, and with the capabilities of this world, cement could not be made at all.

Not to mention that the extent of this weathering may have passed tens of thousands of years!

"Reddish-brown soil, presumably rust, this is ......"

Zhao Xiaobai suddenly found that he almost showed his mouth, and suddenly realized that he hurriedly stopped his mouth, and his heart jumped "thump" again.

Luckily, no one noticed what he said.

Yao Yao didn't even look over, she didn't know what to think by herself.

Gao Yi was bold and said, "Let others make gods, go, let's go in!"

The four men mustered up their courage and walked in.

After only a few dozen meters of entry, the voice of speech buzzed, and the darkness that came to his face made Zhao Xiaobai and Gao Yi light up the pine branches one after another.

The ground was very soft, and Zhao Xiaobai took a cold look, which should be due to the cement falling after weathering. Under the rock walls on both sides, a thick layer of soil has been piled up, which is caused by the weathered part of the cave wall falling.

Zhao Xiaobai has seen this kind of scene a lot on many demolition construction sites in his previous life, so he naturally knows the reason at a glance.

He judged that this place was at least three to five thousand years old, or even more ancient, left by ancient humans.

The biggest doubts are...... If it were a human being of that era in a previous life, this would be very reasonable.

None of the modern humans in this world could make such a thing, how could the ancient humans make such a thing?

......

After passing through several forks in the road, all of which were blocked by the collapse and could not turn in, the four of them kept walking towards the wide place.

"What a deep hole!" exclaimed Ziyue.

"What a weird place!" Yao Yao sighed.

"We've been in at least three kilometers, haven't you?

Zhao Xiaobai was suddenly startled when he heard this, and immediately discovered: What Qingyun said has come true!

There was an emptiness in the sea of consciousness: spiritual consciousness disappeared, true power disappeared, mental power disappeared...... Completely turned into a powerless little Taoist priest.

The two girls probably didn't please them, and their faces suddenly turned pale, and they looked like they were two delicate little girls.

Fortunately, I was mentally prepared before, and I didn't make much of a fuss.

Continuing onwards, the cave is long and deep.

Time passed silently, the first torch in Zhao Xiaobai's hand was almost burned out, and Gao Yi had already begun to light the second pine branch.

At this time, they came to a fork in the road, and there were five holes side by side in front of them. Gao Yi just lit the pine branch, and asked hesitantly, "Which hole to enter?"

Before they knew it, all four seemed to have forgotten about their fears.

Zhao Xiaobai didn't give in and stepped forward to take a look. Discovery: Fresh footprints on top of the underground plaster at the entrance of a cave.

In the other four holes, two of the openings seem to be untouched for eternity, and the softening layer on the ground of the other two openings has obvious traces of dragging and pressing.

When he was a child, his life experience of wandering around taught him that most of the two ancient holes without a trace were blocked.

So he pointed with his finger and said: "These two holes, I'm afraid that they will be blocked by a landslide, but I am afraid that they will not be able to go through not far away." ”

"At the entrance of this cave, there are cluttered fresh footprints, and someone should have walked ahead of us. ”

"But if there is nothing but fresh footprints, it may not be safe, and there are probably unforeseen dangers inside!"

"The remaining two holes, there is something that has been in and out not long ago, and the traces are not particularly old. ”

Ziyue was startled and asked, "What is it?"

This sentence woke up the dreamer, Zhao Xiaobai, Gao Yi, Yao Yao suddenly opened his mouth wide!