Liu Erwa's body twitched as she fell to the ground, and the look of fear on her face still did not fade away.

Lin Feng knelt down and slapped Liu Erwa several times, waking up Liu Erwa.

"Brother Feng...ah!"

After seeing Lin Feng, Liu Erwa let out a scream and fainted again.

"This guy still has nightmares after he faints."

Lin Feng shook his head and took out a half-filled bottle of mineral water from the satchel Liu Erwa was carrying.

Unscrew the lid and pour it on Liu Erwa's face.

After waking up again, Liu Erwa finally came to his senses.

"What did you see that made you so scared?"

Lin Feng was very curious.

Liu Erwa is usually not afraid of anything.

"Uh... I was buried alive by Brother Feng..."

Liu Erwa said weakly.

Lin Feng was stunned.

This is really a terrible thing.

This is probably what Liu Erwa fears deep down in her heart.

"As long as you don't betray me, why should I bury you?"

Lin Feng knocked Liu Erwa on the head.

Liu Erwa'er scratched his head and laughed, "That's right!"

Next, it’s time for Qi Yao to decipher the secret.

After searching the cave for a long time with a flashlight, Lin Feng finally discovered the trap.

A golden statue next to it had a ferocious face and an open mouth.

Lin Feng tied a rope around the statue's head and climbed up to take a look.

The head of the statue is hollow, and when you knock it, it makes a hollow sound.

Then he pulled out an artificially processed conch shell from its mouth.

Lin Feng jumped off the statue with a conch shell.

Qi Yao looked at it and said: "There are many sounds and things we can hear and see in this world.

But the brain doesn't let us hear and see.

The space here was originally closed, but now it is open.

When the air flows, it will cause the conch shell to emit sounds of special frequencies.

We think we can’t hear this sound, but actually our brains receive it.

At the same time, sounds of this frequency have a certain hypnotic effect, making people confused and causing hallucinations...

However, it only has a hypnotic effect on the same person once. The next time the brain will develop a defense and ignore the sound."

Lin Feng nodded.

Qi Yao's explanation is very reasonable.

"This is a treasure!"

Lin Feng asked Liu Erwa to put it in his pocket.

This thing can kill people invisible.

I don't know if it will be useful after taking it out.

"I was almost scared to death just now, thinking that I..."

Lin Feng murmured and shook his head.

Liu Erwa looked at Lin Feng with wide eyes.

Unexpectedly, the big devil was also tricked.

"Professor Qi, are you not scared?"

Liu Erwa asked curiously.

Qi Yao shook her head.

The house-guarding mythical beast will not be affected by this sound.

Unless you catch a cockroach and put it on her...

The three of them continued moving forward.

Lin Feng asked Qi Yao, "You just said that there are actually quite a lot of things we see and hear, and our brains don't let us notice them, of course to protect us.

Is it possible that there are actually ghosts everywhere in this world?

Or are there other spiritual creatures that we find terrifying, which we originally saw, but our brains actively blocked?"

After Lin Feng finished speaking, Liu Erwa was shocked.

Qi Yao shook her head, "I don't know either!"

"Brother Feng, I'm afraid..."

Liu Erwa said suddenly.

"You're afraid of a ball!"

Lin Feng glared at Liu Erwa.

Liu Erwa said: "My father died in a car accident while driving a truck. My brother was also in the car at the time. I often dream about them. Do you think they are always with me?"

"Your father and your brother have been dead for so long, they must have been reincarnated long ago!"

"That's right!"

…

Nothing strange happened next.

There were more and more statues in the cave, and white bones appeared.

When we reached the end, a large pool appeared in front of us.

The water in the pool was constantly surging. Lin Feng could hear the sound of water flowing under his feet without pressing his ears against the stone wall.

There should be an underground river below.

Look up again and look at the top of your head.

There are countless metal pieces hanging from the ceiling of the cave, all hung with red silk.

When the air flows, these metal pieces... no, they should be gold pieces will collide with each other and make strange sounds.

In addition to airflow, the thunder outside can also cause the gold pieces to vibrate.

This was also the sound that Lin Feng heard when gold collided during thunder.

"Brother Feng, do you think this is the tomb of Genghis Khan?"

Liu Erwa asked curiously.

Lin Feng shook his head, "It doesn't look like this cave is much older. It's at least more than a thousand years old, and it's been less than eight hundred years since Genghis Khan died. But the strange thing is that there are incantations similar to Mongolian characters here.

"

There are many puzzles in this world.

For example, Sanxingdui is.

Now there is another mystery, that is, how did those five people from decades ago get in here?

After searching around, Lin Feng set his sights on the pool in front of him.

Could those people have come in by diving?

After thinking about it, Lin Feng shook his head again.

Not like.

At that time, there were no advanced diving equipment, and it was impossible for people to pass through long underground rivers while holding their breath.

The most likely possibility is that he punched a hole in like Lin Feng.

Liu Erwa laid out the wiring and soon the entire cave was illuminated.

Except for a few blind spots, the underground space, which is more than 300 meters long, irregular in shape and sloping downward, is brightly illuminated by lights.

While Qi Yao and Lin Feng were looking around, Liu Erwa used a flashlight to shine in the dark corners.
To be continued...