The old professor told us that the journey, including the previous time when we were trapped on the stairs, was also a test for us by Songtsamsong.

To enter here, only the righteous and brave can do it. The dangers encountered along the way can also be regarded as a test of our character.

Although the old professor said this, we were still a little uncomfortable in our hearts, and the old professor's eyes were full of hostility.

We all wondered, how could the old professor be involved with Songtsensong?

A person from a civilized world can be involved in this isolated world, and it seems to be familiar with this place, which makes people feel shocking.

The old professor smiled and told us his story.

It turned out that the old professor had already established a connection with the world decades ago.

When the old professor was just a student, he and a few classmates came to explore the neighborhood and accidentally fell from the top of the cliff.

Fortunately, there were vines, so the old professor and a few classmates miraculously survived.

Next, they discovered this paradise. They were stunned by the scene here, a place that greatly changed their worldview.

In such a place, there was actually a nation and a civilization.

They were shocked by the scene here, so they lingered, and before they knew it, they gradually went deeper.

From the base of the Japanese army, I broke into the position of the hanging coffin. However, the journey was extremely dangerous, so most of their people died under the hanging coffin.

The old professor, along with a few other students, survived. The mystery of this unknown world made them not stop exploring and continue to move forward.

As if they were fascinated, they kept going deeper and deeper, and they kept exploring.

However, along the way, everyone died at the stairs, but the old professor passed the test and came to this place, where he saw the strange mystery of this cave.

He was not afraid of life and death, and bravely broke through the level arranged by Songtsamsong, which made Songtsamsong very appreciative. So Songtsan Song said that the old professor could survive, but he had to promise them one condition.

The old professor nodded in agreement without hesitation.

Songtsan Song told the old professor to bring some wicked people to this place every once in a while to feed the wolves, as well as some dry food for him and the other children.

The old professor was still very scared at first, after all, in this civilized society, it is difficult to escape justice for murder.

At first, the old professor was very cautious, but just bought some corpses and sent them over. But later, the old professor also gained a lot of courage, and felt that it was too troublesome to transport the dead body, and there was also a risk of being caught, so he began to find some damned prisoners, spend a high price, and use shady means to ransom the prisoners, and then bring them to this place.

This has been the case almost every year for decades. Because those criminals deserve to die, and the old professor is looking for criminals who have lost contact with their relatives, so all these years, they have not been exposed.

In exchange, Songtsan Song promised the old professor to conduct research on the underground "artifact".

The artifact in Songtsan Song's mouth is the "behemoth" we have been looking for.

At that time, the Japanese army also studied the behemoth, and the corpse dragged the thing out, but later when the behemoth was moved, a strange animal flew out of it and wiped out the Japanese army, and even the Japanese army's powerful firepower could not kill the behemoth.

As for what the flying thing looked like, the old professor couldn't describe it, because he hadn't seen it.

However, Songtsan Song saw the Japanese army come down to China, behead his relatives, and a small group was killed in Tashi Delek's grave.

However, their death did not bring peace and tranquility here, but more invading Japanese troops were sent to this place.

Songtsan Song knew that he could not defeat them alone, so he had to hide with the remnants of the race.

The old professor also told us that under this, it is simply a huge underground palace beyond the imagination of ordinary people, similar to the huge space we are in, and there are many deposits, at least he has not dared to guarantee that he has discovered all the huge palaces in the past few decades.

And the layout of almost every big palace is the same. They all have a large army of soldiers, as if they are still guarding this pure land even if they die.

We were shocked by the old professor's description, and we didn't come back to our senses for a long time.

Desertion said: "These soldiers are just sculptures, what can't they die?" ”

The old professor shook his head and smiled bitterly: "Who sued you, they are sculptures?" ”

My heart thumped: "Isn't it? ”

The old professor casually threw the flashlight to me: "Let's see for yourself." ”

I stood up trembling and walked towards the soldiers.

When I got closer, I saw them head-on. I was dumbfounded.

Indeed, those are not sculptures, but real people. They were all dressed in burly armor and weapons in their hands, and even though there were no signs of life, they still stood like sculptures.

They weren't decomposed, they seemed to be smeared with a layer of oil or something, which was probably the key to their bodies not rotting.

And most importantly, these soldiers are all with their eyes open. If you don't look closely, it's hard to think of them on top of the corpses.

They were like living people, standing in front of them, staring at us with dead eyes, and the scene was truly terrifying.

I gasped, these soldiers, there are thousands of them, plus the other underground palaces mentioned by the old professor, the number should be no less than 10,000.

What are these 10,000 soldiers guarding here? I don't know.

While we were looking at the sculpture in a daze, Brother Gao Leng shouted at us and let us pass.

My mind was full of these soldiers, and I sat down in front of Brother Gao Leng absentmindedly.

I have so many doubts in my mind that I can't wait to figure out what's going on here.

Brother Gao Leng waved his hand and said don't ask so much first. We must be tired, so let's take a rest. When the rest is almost over, tell us about the situation here.

I nodded thoughtfully, but I was still so immersed in the shock that I couldn't sleep at all.

After we lay down, Brother Gao Leng and Song Tsensong chatted. What they said seemed to be in Tibetan, but we couldn't understand what it was.

I had to whisper to Tang Yiyi and ask her to listen carefully to the conversation between the two.

The two chatted for a moment, then stood up and prepared to leave.

I panicked, if they leave, what are we going to do? So I immediately ran up and tried to stop the two of them.

Brother Gao Leng patted me on the shoulder and comforted me and said that it was okay, he was just going to hold some kind of ceremony with Song Tsen Song as usual, so that we could sleep in peace.

Hold some kind of ritual? What ritual? I didn't ask more, and I'm afraid that even if he did, he wouldn't tell us.

Brother Gao Leng left, but two children came to watch us.

After Brother Gao Leng left, I asked Tang Yiyi what the two of them were talking about just now.

Tang Yiyi shook her head and said that what the two of them said didn't seem to be Tibetan, so she didn't understand.

I sighed helplessly, but my eyes fell on the old professor unintentionally.

The old professor was still studying the corpse at this time, and he must know much more than we do. This place is simply a big riddle.

I walked up and asked the old professor what he was looking at.

The old professor sighed: "Can you imagine that thousands of years ago, the anti-embalming technology of the ancients was already so superb? ”

I shook my head and smiled wryly, "yes, it's really awesome." ”

"I took this surface with an oily substance that I took back to study." The old professor seemed to be very interested in this question, and as soon as he talked about it, he kept chattering: "But the test results, guess what?" It's just plain wax oil. However, between the wax and oil, it is doped with strong radioactive materials. This kind of radioactive substance, which is now the most advanced scientific laboratory, cannot be replicated and synthesized, and it is this radioactive substance that ensures the antiseptic effect of wax oil. ”

"So amazing?" I looked at the old professor in a little surprise: "You mean, the ancients knew more about chemistry than we do?" ”

"No, no, no." The old professor immediately shook his head: "I mean, these chemicals are most likely not earthly substances, but extraterrestrial objects. ”

"Alien means?" I laughed dumbly.

The old professor also smiled: "Of course not, it may be that a meteorite has landed here." And it is conceivable that the size of the meteorite should not be underestimated, and the temperature is very high when it falls, melting many large stones around. ”

"Well, the meteorite passes through the friction of the atmosphere, and the temperature is really high."

"Not what you think." The old professor said: "If it is a meteorite, no matter how high the temperature of the meteorite is, it is not enough to melt the meteorite itself. If you can't melt the temperature of the meteorite, how can you melt the surrounding stones into this structure? ”

Yes, what the old professor said is true. I looked at him in amazement, trying to figure out what he meant.

The old professor sighed and said seriously: "I suspect that the thing that flew from the sky is probably not a meteorite, but a substance with a melting point much higher than that of stone, such as ...... Certain rare metals. ”

"You're not talking about alien flying saucers, are you?" Desertion interjected: "Okay, I think you are stupid to read, there are really aliens, it is impossible for more than six billion people in the world to not find out." ”

The old professor smiled bitterly: "To be honest, I have really considered this aspect all along. ”

"That means you're really stupid." Desertion said: "Isn't it antiseptic technology?" As for the extraterrestrials? Old professor, come on, come on, don't study corpses, let me ask you a few things. ”

The old professor's gaze reluctantly left the corpse, and then sat down opposite us: "Actually, my understanding of Cheng Dù here is not much deeper than yours. A lot of places are forbidden places, so I can't go in. ”

"Is there anything else you don't know about?" I looked at the old professor in surprise: "I don't see, didn't you say that you have been here for decades?" ”

The old professor sighed: "Yes, it's been decades. However, this place is too big, and the area where I can move is very limited, after all, the body is not good, so I found two students to study for me. But both students are dead. ”

For some reason, as soon as the old professor mentioned the two students, I subconsciously thought of the young men and women who were diving.

I don't know if the two students mentioned by the old professor have anything to do with the young men and women we first found diving.

I asked the old professor curiously, has this place been discovered by others? Will someone else come in and explore?

The old professor shook his head and said it was impossible. Except for him and his dead students, this matter has never been talked about to outsiders, otherwise the silence of this place would have been broken a long time ago, and maybe it would have become a tourist attraction.

Yes, the old professor is right. Once the tranquility of this place is broken, it can really turn into a tourist attraction.

But the young men and women we tracked did come in here?

I was curious to ask the old professor to describe what the two of them looked like and how they got here.

I didn't expect the old professor to say this, and the result shocked all of us.

Because the old professor's description is surprisingly consistent with the appearance and characteristics of the young men and women we have seen, and even the way they enter this place is exactly the same as that of young men in diving.