Chapter 41

"Impossible, it's an illusion, it must be an illusion!" Yalu shouted. Although he was very scared, he was very calm at this time and could actually remind everyone at this time.

"This is not a supernatural event, it must be a hallucination. We really inhaled that toxin!" Martha and Moss were thinking this in their hearts. They felt a little calmer, but they still felt a little numb.

They saw that the Chinese man named Changfeng actually walked up to the stone wall and touched it with his hand. At this time, the big face on the stone wall was grinning ferociously and biting his hand. This young man was so courageous.

He was so big that he didn't seem to be afraid at all. Instead, he slapped the face that was biting him hard. After hearing a weird cry, the black shadow disappeared.

Changfeng took a deep breath, and he secretly drew a rune on the palm of his hand, just to prevent evil spirits from causing trouble. Sure enough, it was not an illusion at all. He could feel that on the stone wall, there was a rune.

The free Yin spirit energy was gradually getting bigger. I hit the rune in my hand towards the energy, and the rune immediately turned into a wisp of golden light and flew away, dispersing the free energy.

He touched the stone wall, knocked again, and then signaled Wang Tingting to bring an iron hook, hooked it with the iron hook, and a piece of gravel fell. After looking at the gravel carefully, he said: "It's quartz mine!"

"Quartz mine?" Ren Tianxing immediately went over to take a closer look and said, "It is indeed quartz mine, and the quartz content is not low." Before he finished speaking, he immediately realized that this trumpet-shaped outlet was made of quartz mine.

, can make the sound very loud through resonance. This is simply a natural amplifier.

This kind of quartz mineral has a huge content and is of various types. Due to the resonance, it will produce a new sound wave frequency. No one knows what consequences this sound wave frequency will have. It is very likely that people will have hallucinations, and it will be powerful.

Make people die violently.

Such a structure is really a masterpiece of uncanny workmanship. The deafening sound just now, like a thunderbolt from the blue, was the masterpiece of this natural loudspeaker.

No wonder they were all shocked when they heard the second sound. If Changfeng hadn't reminded them to plug their ears first, they would have been driven insane by the sound wave, or even died on the spot.

Yalu saw that the rocks around the exit were actually ores containing quartz, which made him excited. This quartz mine was priceless.

At this time, suddenly a gust of wind blew in from the outside, with a knocking sound. After passing through the exit, the sound became very low and strange. The stronger the wind, the louder the sound.

"Changfeng, what should I do?" Wang Tingting tightened her palms, and the sound came again. If according to Changfeng's guess, then if they were so close to the source of the sound, wouldn't it be more powerful than before? Thinking of this, everyone immediately covered their ears.

.

The strange thing is that the sound is obviously very loud and seems to be even more fierce than before, but in this place, there is no feeling of excitement like before, and everyone looks at each other in confusion.

This time, Changfeng was completely sure that this place was a "natural loudspeaker" because only at the source of the sound source would it not be affected by the sound. Just like a flame, the temperature of the flame is often not the highest.

The center is the outermost layer of the flame. Therefore, the temperature of the root or central part of the flame is much lower than that of the outermost layer.

After Changfeng explained it to everyone, everyone realized that due to the direct effect of this "natural loudspeaker", what was originally an ordinary bell finally turned into a bell that sounded like a bell from hell, and like this

Sound, because of its special frequency, reflection and refraction of sound, makes people feel that it is coming from all directions.

Wang Tingting's eyes lit up and she thought to herself, this place is so magical. If the wind blows again, she will take the opportunity to sing a few words. After these words have been changed, the people inside will hear it and what will happen.

.She felt very excited when she thought about it. Maybe people thought it was an evil spirit roaring, or some god reciting a curse. Thinking of this, she couldn't help laughing.

Everyone looked at her curiously, not knowing what she was smiling about. When Wang Tingting reacted, she saw everyone looking at her and couldn't help but blush.

This wind was relatively strong, and it took a long time to stop. The low and strange bells slowly started to sound. After the wind stopped, the sound gradually became weaker. Changfeng said: "Okay, let's go out quickly. Masha, tell me about this exit."

Condition."

Ma Sha said: "This exit leads to an abandoned mine. It takes about a hundred meters to walk directly to the mining area of ​​the mine. However, this mine has been closed for more than 20 years and no one has maintained it.

There are a lot of landslides and it’s very dangerous inside.”

"What kind of mineral does this mine produce?"

"It's a coal mine! Later, due to water seepage, it could no longer be excavated, so it was abandoned. However, the government has sealed the mining area where water seeped."

"Did mining at that time just dig through this place?"

"No, sir!" Masha shook his head and said: "There was an accident in this mine at that time, and many miners died after water seepage. Later, the coal mine owner went bankrupt because of this and was held accountable. Because this vein is connected to the underground river, it is also

There is no value in further mining.”

This coal mine was one of the three largest coal mines in Syria at that time. Due to mining, underground rivers were dug, causing water to seep into the underground rivers and a major accident occurred. Many people died. The government could not do anything to save them. In the end, they could only take advantage of the situation in winter.

When the underground river dried up, the bodies of the workers who died in the accident were found, and blasting methods were used to blow up the mining area in the seepage area and seal it with concrete.

This mine is very huge and intricate, so it has become a place for adventurers to explore. Until an adventurer entered the mine and discovered the entrance to the ancient underground city.

"So that's it!" Changfeng nodded, then packed up the things in his backpack and took out a few burning rods to distribute to everyone. As a backup, in addition to the burning rods for lighting, there were also lighting equipment, namely Ye Qingcheng and

The flashlights in the hands of Wang Tingting and Wang Tingting.

When everyone was preparing to leave, the sound just stopped. The silence at this time made people a little panicked. It always felt like something was staring at them in the darkness.

After everyone took off their night vision goggles, Ren Tianxing took the lead and lit the burning stick in his hand. A large area was suddenly illuminated, and everyone's shadows were projected on the nearby stone wall.

At this time, Ye Qingcheng's delicate body trembled. She accidentally saw the shadows on the stone wall, and found that the shadows on the stone wall were not just the projections of the seven of them, but also many figures swaying unsteadily, as if they were ghosts. Suddenly, the palms of her small hands

Sweating profusely.

According to common sense, when seven people are illuminated by light, there are usually seven silhouettes. Even if it is a problem with the light angle, it is normal for one person to have multiple silhouettes. Ordinary people will often see three silhouettes under the sunset.

A shadow. But no matter how many figures there are, the silhouettes projected are almost the same. And those figures on the stone wall, at first glance, are not the result of multiple figures being projected!

That means that the shadows above belong to multiple people!

"Brother Changfeng!" Ye Qingcheng shouted in a panic, and said tremblingly: "What is around us?" Her words aroused everyone's vigilance, and everyone looked around. At this time, they saw the place covered by light.

, as if there were groups of invisible people staring at me, and I suddenly got goosebumps!

Ma Sha and Wang Tingting each lit the burning sticks in their hands, throwing one to the east and the other to the west. As long as there was light, they could not see anything, and at the edge of the light, there were more

A figure appears.

"Don't panic, this is an illusion! Don't forget that the poisonous gas we may have inhaled is still working." Changfeng said solemnly and ordered: "Ren Tianxing, lead the way, everyone should follow Ren Tianxing, no matter what

Whatever you see, please stay calm and ignore it as long as it does not affect our safety."

Chang Feng's words calmed Ye Qingcheng. Although he was scared, he was no longer so panicked. Ren Tianxing nodded slightly to Chang Feng, telling him to be careful behind him, and then led the way. Ye Qingcheng followed Ma Sha closely.

Wang Tingting turned around accidentally and saw several of the figures waving to them. One figure even made a gesture of reaching out to pinch someone. Wang Tingting and Changfeng knew in their hearts that this was not an illusion. This was a ghost!

Wang Tingting has been studying Taoism with Gu Jing for more than a year. She has been wary of these things for a long time. She has long realized that something is wrong nearby. She holds a yellow talisman given by Changfeng in her hand.

"Changfeng, there are so many Yin spirits here!" Wang Tingting whispered and asked, "But it's strange, why don't these Yin spirits react?"

Changfeng had always noticed something was wrong and was secretly on guard. At this time, he also felt strange and said, "It's very strange! Let's go, be careful."

Everyone followed Ren Tian cautiously. The exit was an arched passage less than ten meters high after a huge rock fell. It was very slippery and difficult to walk. No one dared to walk too fast.

………………………………………………………………

I was a little busy on the weekend. My child was sick, had a fever, cold and cough. I stayed with my child all the time, and the fever often recurred. My child couldn't sleep well in the middle of the night.

The child is sick, which makes the father feel very bad and distressed, so he is not in the mood to write on weekends. I am very sorry.
Chapter completed!