The mother stopped about fifty meters away from the circular building: "You go in, I will wait for you to come back for dinner." Her smile was still so kind, which made Lin Jinghao feel like he had returned to his childhood in his hometown.

situation.

"Okay, let's go in and come out soon. You and your family will have a good time in the future!" The professor chuckled. After staying underground for so long, every time he saw the arrival of a new person, he would become excited.

stand up.

The circular arch was more than three meters high. As they approached, the sound of it automatically opening to both sides showed its extraordinary heaviness.

"Professor, what you are doing is not a research institute, but a castle, right?" When Lin Jinghao walked into the 'research institute', his eyes were wide open. Looking around, he saw that it was a hundred meters deep, but the empty 'main hall' was completely empty.

, instead, at the end of the 'main hall', there is another tall, arched city wall.

There was no openable door on the city wall, but there were countless oval-shaped holes at the top of the wall. It looked like countless pairs of eyes were watching them.

"Have you ever heard of Wengcheng?" Seeing Lin Jinghao's confused face, his father couldn't help but said from behind.

"Wengcheng?"

"Yes, this is an invention of our ancestors. It is a small gate-protecting city built outside the city gate by ancient people in order to strengthen the defense of castles or checkpoints. This is a clever trick that only your father could come up with!" the professor said to him as he asked.

Walk forward and look back to introduce.

"This is a city? There is no city gate?" Lin Jinghao looked at his father. In his eyes, his father was just a super contractor who entered the city very early. He didn't expect that he would actually understand these ancient things.

!

"Silly boy, of course the gate of the Wengcheng is not in the same straight line as the gate to be protected. This is to prevent the enemy from marching in directly. We will use this time difference to wait and catch them in the urn, and then close the door to beat the dogs.

ah."

While he was talking, the door behind him had slammed shut. Immediately afterwards, a row of bright lights came towards him. Lin Jinghao reflexively raised his hand to block it, and then looked out through the crack in his hand. A row of eyes on the top of the city had already opened.

, emitting streaks of dazzling white light.

"What a strong light?" Lin Jinghao sighed.

"Haha, I'm sorry, Xiao Lin, this is the induction light I invented. The principle is somewhat similar to that of high frequency

The pulse gun can determine the intensity of the light it emits based on the temperature it senses. The highest temperature can be similar to an artificial small sun, melting everything here." The professor said with a smile.

"Professor...can I ask a question?" What he saw before him finally made Lin Jinghao couldn't help but ask.

"You want to ask, where do we get such a large amount of energy to drive these light sources in this underground place? In fact, the essence of temperature is the intensity of the thermal movement of molecules. Just like we always think that sunlight has temperature, in fact

As a kind of electromagnetic wave, sunlight only has energy. This energy can be converted into internal energy under certain conditions, which is what we see, causing the temperature of an object to increase. The greater this energy, the higher the temperature we feel.

It will be higher."

Seeing that Lin Jinghao still looked confused, the professor continued: "Do you know why the dead souls usually disappear automatically after a period of time? But why can the souls here be immortal?

?

According to my research, this is because there is a huge energy source hidden in the ground here that we humans have not yet recognized. And this energy may be an unknown super-powerful metal, or it may be a metal containing huge energy.

A new type of element. It is because of this energy that we can accomplish everything that is impossible to accomplish in the human world."

While talking, Lin Jinghao was taken to the other side of the circular city wall. Sure enough, another circular arch appeared on this side of the city wall.

"Come on, Xiaolin, let me show you something that will really shock you!"

The city gate opened again with a loud bang, and a biting chill hit his face. Lin Jinghao couldn't help but shudder, and he immediately calmed down.

'I've seen everything before, what else can scare me?'

"You..." What came into view was a row of moving transparent crystal coffins. There were twenty or thirty old people lying in the coffins. They were all neatly dressed and had their eyes closed, as if they were asleep.

This suddenly reminded Lin Jinghao of the disappearance cases of wealthy people that had occurred in recent years. In a professional move, he quickly raised his hand and stretched it towards his waist.

"Xiao Lin, don't get excited! Take a closer look at who these two people are?"

Following the direction of the professor's finger, Lin Jinghao's eyes stopped at two people close to each other.

On the crystal coffin, although the light in the room is a bit dim, you can still recognize at a glance that the two old people sleeping in it are the professor himself and his father!

"Professor, this is..."

"Xiao Lin, you must know that when a person's soul leaves his body, he is most worried about the safety of his body. What's more, your father and I are both in a world full of dead souls.

So when your father and I were installing high-frequency temperature sensing devices and accidentally discovered that a certain frequency could cause a normal person's soul to leave the body, your father proposed that we put our bodies into a crystal coffin.

Save it so we don't have to worry about it.

You have to know that the crystal coffin is also called an ice coffin. Its operating principle is equivalent to the working principle of a refrigerator. It can not only keep objects fresh at low temperatures, but also prevent our bodies from losing their souls from being damaged due to contact with

After the air, decay occurs..."

"I see, no wonder you put so many eyes outside! You are doing it for..." Lin Jinghao took his hands away from his waist. At this moment, he began to admire his father and professor from the bottom of his heart.

"You're right, this is a completely different world that belongs to us and Yang souls. Any ghosts outside or bad guys who want to do bad things can't even think of walking in." The professor proudly moved his body.

'Floating' in the air.

"But...Professor, doesn't it mean that even the queen and my mother...can't get in?" Lin Jinghao began to look around here.

"Silly boy, the devices outside can be turned off from the inside." Seeing Lin Jinghao's embarrassed look, his father also smiled.

"Yes, doesn't it mean that if the queen wants to come in, she has to report to us first?" Lin Jinghao also smiled. It turns out that this is really a world where humans and ghosts can coexist, and the queen is not the only one who can cover the sky with one hand.

.

"Silly boy, you can just talk here, but you can't go out to talk. In fact, our queen is also a very open-minded person, especially after so many years, she also understands that the outside world is developing at a rapid pace.

She also looks forward to one day letting her princes go out and have a look!"
Chapter completed!