Yang Shuoming let go of his beloved wife's hand, and by the light of the torch, he took out his pocket watch and looked at it, at this time, the pointer of the pocket watch was pointing to a quarter past ten o'clock, and the time when the couple entered the cave was about ten o'clock, and more than an hour had passed in the hole. In this hour, they had advanced a total of 500 meters, which can be regarded as a rather cautious marching speed.

At this time, the passage was still facing the depths of the earth.

"This hole is much deeper than we thought." Huang Yunzhi hugged Yang Shuoming's arm and looked at the strange rocks around her with some fear, "It's the first time in my life that I've come to such a deep underground." ”

"Do you dare to go on?" Yang Shuoming smiled, hugged her, and kissed her lightly on the forehead.

It may have been the kiss that gave her courage, and she nodded, her eyes flashing with determination and excitement.

Yang Shuoming took her hand and continued to walk forward, the passage stretched rapidly downward, and after a while, the wide passage began to narrow again, and only a narrow gap was left between the stone walls to allow the two of them to pass sideways. The gap seemed to be ready to close at any time and squeeze people flat, which was very terrifying.

The passage continued to descend and then widened again in a moment, winding into the depths of the earth, reminiscent of spiraling staircases. Yang Shuoming walked cautiously while carefully observing the cliff wall, according to the prompt of the "supercomputer eye", he did not find any traces of human excavation here.

After walking for about thirty minutes, the passage still did not change much, and continued to extend underground.

Suddenly, Huang Yunzhi let out a short exclamation and leaned against the stone wall.

"What's wrong?" Yang Shuoming protected her with his body, the hand holding her palm had been released, and it was on the hilt of the knife at his waist, and his eyes quickly scanned the surroundings.

"Front...... It seems that something ......" Huang Yunzhi pointed ahead and said with a smutter.

"What do you see?" Yang Shuoming asked.

"Yellow light...... It's gone in a flash...... ...... like a ghost fire"

Yang Shuoming stretched out the torch in his hand and looked ahead, and sure enough, just as Huang Yunzhi said, there seemed to be a yellow light flashing in a hole not far in front of them.

Yang Shuoming shook the torch in his hand, and once again saw the golden light passing quickly.

Huang Yunzhi also saw this ghostly light again, she raised the gun in her hand, and was about to fire at Huang Guang, but Yang Shuoming held her hand.

Huang Yunzhi looked at Yang Shuoming puzzled, she found that there was no fear in her husband's eyes, but instead flashed with excitement like a wolf seeing its prey.

"As I expected." Yang Shuoming patted her hand and motioned for her to put away the pistol and follow.

Yang Shuoming held the torch and walked quickly towards the hole, Huang Yunzhi inserted the pistol back into the holster at his waist, followed him closely, and the two of them went into the hole one after the other.

In an instant, the surrounding light suddenly became brighter.

This time, Huang Yunzhi did not let out another exclamation. She stared at the sight in front of her, her eyes widened in surprise, and she covered her mouth with her hand.

What appeared before her eyes was an incredible sight. The entire world inside the cave was completely submerged in the ocean of light at this moment, and there was only a torrent of surging light around it. In this world of light, Huang Yunzhi's eyes were difficult to adapt for a while, and she actually felt a little dizzy, she couldn't help hugging Yang Shuoming, so she didn't let herself fall.

Yang Shuoming's eyes had already adapted to the light in the cave at this time, he looked at the cave carefully, and the cursor in his eyes was also flashing rapidly, accompanied by a lot of analysis data.

The cave in front of him was completely different from the cave he had just walked through, it was at least eight meters wide and about ten meters high, and it was more like an underground square than a cave. And it continues to expand in depth at this width. The whole cavern was full of light, a bewitching glow that came from the walls, the ceiling, and the ground, and everything was glowing, making it feel like you had broken into a dreamlike world.

A palace of light.

The light in the cave made Yang Shuoming and Huang Yunzhi's skin feel soft and warm, but the visual feeling was cold, and there was no heat in these lights. On the whole, it is crystal clear, yet permeated with a rainbow of colors, adding something more intimate and elegant to the icy light.

"This ...... What the hell is it? Huang Yunzhi's voice echoed softly in the cave, looking extremely sweet and soft.

At this time, she was completely shocked by the wonder in the cave.

"It's a crystalline of salt." Yang Shuoming stretched out his hand and put his arm around her shoulder, and explained to her according to the hints in his eyes, "This is a kind of rock salt that is close to colorless and transparent, it extends endlessly towards the depths of the earth, and the light you see is from these multi-faceted salt crystals, reflecting the light of the torch, forming this reflection phenomenon, so it looks like you have come to a palace of light." ”

At this time, Huang Yunzhi was deeply tempted by the landscape in front of her, she couldn't stop looking at this "palace of light", and her eyes showed a look of surprise, Yang Shuoming saw that there was even a rainbow-like halo around her retina, which looked like a dreamlike blur, and couldn't help but smile slightly.

Yang Shuoming hugged her and continued to walk towards the depths of the cave, and with the leap of the flame on the torch in his hand, the light in the cave also changed, showing various beautiful colors such as red, purple, green and yellow, constantly swaying and swaying.

Soon, not far ahead, a fork in the road appeared. The two walked along the fork in the road for a while, and a relatively wide underground space appeared in front of them, connecting the path. Yang Shuoming knew that it was tens of thousands or hundreds of thousands of years ago that such an "underground square" was formed under the erosion of clear groundwater. The passage around it is also such a dripping water through the stone, which has taken countless years to create such a strange scene.

The main road leading to the "underground palace" is relatively wide in the cavern, leading directly to the rock salt layer, and then radiating forward, and the endless forks are like a labyrinth, making people feel confused.

"It's such a beautiful underground palace......" Huang Yunzhi looked at the surrounding wonders and said stupidly

"Then let's be the master of this underground palace." Yang Shuoming smiled and teased her, "I am the emperor, and you are the empress." We have a lot of babies here......"

"Badass ......"

Yang Shuoming's hugging movements and provocative words made Huang Yunzhi's body start to heat up, she blushed, broke free from his embrace as if she was disguised, took off the coat that Yang Shuoming gave her, and put him on again.

At this time, the two of them were in the dark world underground, and the quiet and warm atmosphere gave Yang Shuoming the urge to be intimate with her again, but he was joking, but he had no intention of being warm with her here.

In such an unknown environment, it is still important to maintain physical strength.

For their husband and wife, this underground palace can be said to be an incomparably huge wealth.

When he was still outside and didn't come in, Yang Shuoming roughly judged through the hole that had been polished by the deer's body that was smooth and smooth that there should be an underground salt mine here.

According to what I learned in the "Hunter's Forum", there are more deer herds near places where salt water gushes out. Only a large herd of deer frequented here will leave such traces.

For Yang Shuoming, who traveled to this era pennilessly, the underground salt mine can bring him more than just wealth and status.

This is why he knew that there was some adventure, but he still broke through with his wife.

"Listen! What was that? Huang Yunzhi said suddenly.

At this time, Yang Shuoming also heard something, and this sound seemed to come from underground, a low roar, coming from afar. Yang Shuoming vigilantly took out his gun and slowly moved it in the direction where the sound came from, and Huang Yunzhi also pulled out his pistol and followed behind him.

Soon, in the corner of the underground plaza, they found another very narrow path that continued forward. And those strange noises came from that direction.

Yang Shuoming and Huang Yunzhi walked one after the other, step by step in the direction of the sound. Yang Shuoming carefully observed as he walked.

With the footsteps of the husband and wife, the sound became louder and louder, and it did not seem to be an artificial sound, it roared at a fixed frequency, the closer they walked, the higher and higher the sound, when Yang Shuoming and Huang Yunzhi came to a place about three hundred meters away from the source of the sound, they finally heard clearly where the sound came from.

"It's a waterfall!" Huang Yunzhi shouted excitedly.

The two of them stood on the edge of a cliff, and not far in front of them, a waterfall hung high, reflecting a vast white expanse and making a huge roar. Yang Shuoming looked up and saw a pile of rocks on the high cliff wall, which was not a crystal of rock salt, but like a hard granite. The waterfall rose out of the pile of rocks and flew down like a white practice. The two of them stood in front of the waterfall, and they felt that the splash on their faces was so cool and refreshing.

Yang Shuoming looked down, and under his feet, there was a high cliff, bottomless.

The cascading waterfall reflects the colorful light of the rock salt layer, like a colorful drill falling from the sky. The water is dyed in neon colors, and from a distance, it gives a ghostly mood that blends in with the surrounding atmosphere.

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