These scholars, who believe that an unknown civilization built the dungeon, put forward the idea that the Naka people built the dungeon.

Although Lu Yuan also preferred to think that another civilization built this dungeon, he did not believe that it was the Naka people who built it.

Because judging from the evidence he has found now, although the Naka people and the Naka empire they established are very technologically advanced, they obviously do not have the technology to make energy weapons.

In addition, some of the Naka scripts have now been unearthed, and although their writing is also hieroglyphic, it is not the same as the mysterious writing of this dungeon.

In addition, the age is not correct, according to the research of the Institute of Prehistoric Civilizations, although the Naka Empire also built some dungeons.

However, they had a fierce civil war 10,000 years ago, and the Naka Empire was destroyed 9,000-10,000 years ago.

At the latest, 8,000 years ago, the remnants of the Naka people were completely extinct.

The dungeon was built 5,000-6,000 years ago, and the age of the two sides is quite different.

However, Lu Yuan didn't say much, and after finding out that there was nothing wrong with him, he left the dungeon.

......

In a small river valley in the southern part of the Persian Plateau, Lu Yuan is moving rapidly.

After leaving the dungeon, he first went on a trip to the body poison, and in a temple in the south of the body poison, he saw some words similar to the words he found in the dungeon.

In the mouth of the monks of the temple, Lu Yuan learned that this script was the legendary Lemuriya.

Lemuria is the most inconspicuous of the three sunken continents, and the least documented.

Even if it was Lu Yuan, there was no evidence in his hand that could truly prove the true existence of the Lemuria continent.

After learning from the monks that these mysterious characters were suspected to be in Remliya.

Lu Yuan looked forward to the collection of books and materials left by the Havaliji Sect.

After all, the Havaliji cult has occupied dungeons and underground bases for more than 1,200 years.

Lu Yuan had reason to believe that the real and most important information in the dungeon must have been collected by the Havaliji Sect long ago.

The Havaliji sect is now completely degenerated into a cult.

However, it is not a barbaric and backward barbarian after all, and they have always had the habit of preserving materials.

Lu Yuan believed that as long as he found the collection of books and classics left by the Hawariji Sect, he would definitely gain a lot.

After Lu Yuan left the temple, he came to the place left by the Great Elder of the Havaliji Sect as fast as he could.

According to the clues left by the Great Elder of the Havaliji Sect before his death, Lu Yuan finally found this river valley hidden in the mountains.

Before entering the river valley, Lu Yuan was attacked by a small group of militants.

After dealing with this group of militants, Lu Yuan confirmed through ecstasy that a camp of the Havaliji sect did exist in this river valley.

Lu Yuan found an abandoned camp in the deepest part of the river valley.

After some investigation, Lu Yuan discovered that there was indeed a secret basement under this camp.

After Lu Yuan found the basement, he did not use the key left by the Great Elder of the Havaliji Sect to open the basement.

Instead, he directly used the Earth Escape Technique.

After entering the basement, Lu Yuan walked to the door from behind.

As he expected, there were a lot of dangerous traps in the basement door.

If you really use the key given by the Great Elder of the Havaliji Sect to open the basement. Then these organs will inevitably be touched.

Lu Yuan took the initiative to trigger these mechanisms out of curiosity, and soon his back was wet with sweat.

The mechanism set up here is far more powerful than I expected.

There is even a usable energy weapon in these traps.

Carelessly, if he was really hit, even Lu Yuan would die in Huangquan.

Lu Yuan couldn't help but sigh, this Great Elder of the Havaliji Sect was really cunning and cunning, and he dug such a big pit for himself before he died.

If it weren't for the fact that he had been deceived once, and he had the Earth Escape Technique, he might really be fooled.

After Lu Yuan sighed, he turned around and walked towards the inside of the basement, what he was most worried about now was that there were no books and materials in this basement at all.

Looking at the rows of bookshelves in front of him, Lu Yuan finally breathed a sigh of relief.

"It's okay, it's okay, at least that old guy is hiding books!"

Lu Yuan quickly emptied the entire basement, and there were too many materials and books.

For a while, he couldn't finish reading it, so he was going to move these things back to Yingzhou first.

It just so happens that the newly built museum and exhibition hall in Yingzhou have also been built, and these things can be used as collections.

Three days later, Lu Yuan had already returned to Yingzhou.

Hearing the news of Lu Yuan's return, Professor Sun was the first to block the door.

"Lu Yuan, what have you gained in the dungeon this time, hurry up and take a look!"

As soon as Professor Sun saw Lu Yuan, he went straight to the point and asked Lu Yuan for information about the dungeon.

Facing the old man, Lu Yuan naturally couldn't get angry, but fortunately he was prepared.

Lu Yuan quickly took the old man to his underground secret room.

The secret room is already full of all kinds of treasures, as well as various artifacts of prehistoric civilizations.

Naturally, the cultural relics and materials of the dungeon are also indispensable.

Give these things to the old man, Lu Yuan is naturally relieved, and Lu Yuan can't see these materials alone.

Even if you don't give it to the old man, you have to find someone to sort it out and study it.

The old man quickly summoned a large group of people from the research institute, and with the efforts of these people, it only took half a day for Lu Yuan to empty the information he had obtained from the Havaliji Sect.

After the old man left, Sun Jia returned to Lu Yuan's villa from the laboratory.

In the evening, the two had a dinner together with Lu's father and Lu's mother.

At the dinner table, the wedding date of the two was also set, on September 12 next year.

Lu Yuan still has some doubts about getting married next year.

Mainly because of his body, although his control over his body is much stronger now, he still doesn't dare to take risks.

He felt that he still had no way to bring Sun Jia happiness.

He actually wanted to discuss with Sun Jia and postpone the time of marriage, but looking at Sun Jia's happy smile, he swallowed the words again.

......

It has been more than half a month since Lu Yuan returned to Yingzhou, except for the first few days when the two of them played together.

For the rest of the day, Sun Jia has been helping Lu Yuan find information about the Sahara Desert.

After the marriage date was confirmed, Lu Yuan felt that Sun Jia was becoming more and more like a good wife and mother.

With Sun Jia's help, Lu Yuan finally had a preliminary understanding of the Sahara Desert.