Lu Yuan finally persuaded this group of historians to join the Yingzhou Ancient Civilization Research Association at the cost of his incorruptible tongue and continued investment in Teotihuacan's research.

Lu Yuan, who was overjoyed, arranged for this group of scholars to be sent to Yingzhou as quickly as possible.

After working in Yingzhou for a while, they will return to Teotihuacán, but by then they will have a real research institute established in the ancient city.

After sending off this group of scholars, Lu Yuan finally had his hands free to explore this ancient city.

That night, Lu Yuan went alone to the Sun Pyramid in the ancient city.

When he first saw the Pyramid of the Sun, he discovered that there was a hidden space in the pyramid.

When Lu Yuan arrived at the Pyramid of the Sun, it was already midnight, and there was no one in the ancient city at this time.

Such an environment is just conducive to Lu Yuan's actions.

However, after a long period of observation, Lu Yuan never found a way to enter the pyramid.

And due to the existence of the pyramid energy and the material problem of the sun pyramid itself, Lu Yuan's earth escape technique also lost its effect.

In desperation, he turned his attention to the temple not far from the Pyramid of the Sun.

This temple is also dedicated to Quetzalcoatl, but this statue of Quetzalcoatl is not the same as in front of the sacrificial pit.

When Lu Yuan visited the temple before, he also found that there was a passage under the Quetzalcoatl Divine Statue in the temple.

After Lu Yuan entered the temple, he quickly came to the statue in the main hall.

He bowed respectfully, and then walked to the idol.

After some investigation, he found a mechanism in the mouth of the idol.

Lu Yuan tentatively pressed the mechanism in the mouth of the idol.

"Click......"

Soon, the entrance of a passage appeared in front of Lu Yuan.

This entrance is not large, just enough for one person to enter.

Lu Yuan carefully probed and confirmed that it was safe before entering the passage.

As soon as Lu Yuan entered the passage, there was a sound of "click" behind him.

The channel has been automatically closed.

This passage was built better than Lu Yuan imagined.

The passage is surrounded on all sides by boulders and looks very solid.

Lu Yuan tried, and his Escape Technique didn't pass through these boulders at all.

Lu Yuan sighed, he once again understood that he had quickly improved the level of the Escape Technique.

He secretly made up his mind that after this time, he would go back to the Undersea Cave Mansion to retreat and cultivate, and strive to break through the sixfold Qi cultivation.

After breaking through the sixfold qi training, the Escape Technique can be cultivated to the Dacheng stage.

According to the description of the Retreat Technique, when the time comes, you will be able to truly shuttle freely underground.

Except for metal and lava, and a few places protected by special energies, no one else can organize itself.

While thinking about things, move forward.

Soon Lu Yuan walked around a corner.

In this place, Lu Yuan found a skeleton.

The skeleton was dressed in a garment made of unknown material.

I don't know how many years have passed, but the clothes still look like new.

Lu Yuan cautiously touched the screen of his clothes, afraid of destroying them.

To his surprise, this dress turned out to be full of willfulness, and after touching Lu Yuan's fingers, there was no change.

Lu Yuan tried to increase his strength a little, but his clothes still didn't change.

"Huh"

Lu Yuan let out an exclamation.

He's now discovered the magic of clothes.

He bowed to the bones, then removed his clothes from them.

After some inspection, Lu Yuan found that the material of this dress was very close to silk, but the toughness was completely incomparable to silk.

"What kind of material is this made of, it can't be the legendary Heavenly Silk!"

Lu Yuan thought curiously, and after studying for a long time, he didn't recognize what kind of material this dress was made of. In the end, he had to put away his clothes first.

Lu Yuan continued to walk along the passage, and then he suddenly realized that this passage actually led to the direction of the pyramid.

After about 600 meters of progress, two roads appeared in the passage in front of Lu Yuan.

Lu Yuan judged that these two roads should lead to the Pyramid of the Sun and the Pyramid of the Moon respectively.

After thinking for a while, Lu Yuan felt that he would go to the Sun Pyramid first, because he had discovered through his divine sense before that the space in the Sun Pyramid was larger.

After continuing to move forward for 300 meters, Lu Yuan felt that he was already under the Sun Pyramid.

At this time, some bones appeared in the passage from time to time, and the death of these bones was relatively deformed, and it was obvious that they were dying in pain.

"What the hell is going on here?"

Lu Yuan's heart was full of doubts.

He continued along the passageway, and soon came to a stone gate.

Lu Yuan tried to push it, and the stone gate was very heavy.

He looked around, there were no mechanisms, and it seemed that he could only rely on brute force to push the door open.

Fortunately, Lu Yuan's strength is already very strong now, and although the stone gate is heavy, he still reluctantly retreated.

After pushing open the stone door, what appeared in front of Lu Yuan was a passage that said upward.

Lu Yuan did not hesitate and walked up the passage.

In the passage, Lu Yuan found some traces of battle.

Some soldiers in bronze armor died in the passage.

Lu Yuan picked up a sword. He didn't really care too much at first, because the material of this sword was very ordinary.

However, with the two inscriptions that appeared on the sword, Lu Yuan suddenly paid attention to it.

Because the inscription on the sword is actually Chinese characters.

This shocked Lu Yuan, how could there be a weapon engraved with Chinese characters here.

If Teotihuacan is really the country of Fuso recorded in the history books.

Then it is understandable that there are weapons produced in Zhuxia here, but the style of this sword is obviously different from the sword of Zhuxia.

"Could it be that some of the Zhuxia artisans once arrived in Teotihuacan and taught the Teotihuacans how to make weapons?"

Countless questions rose in Lu Yuan's heart.

Lu Yuan picked up all the weapons in the passage.

Eventually, he discovered that each weapon had Chinese characters inscribed on it.

"It seems that more than a thousand years ago, the Zhuxia people really came to Teotihuacan. ”

Lu Yuan put away his things and continued to walk forward, and after a while, he came to the core of the pyramid.

It looks like it should be a burial chamber.

In the center of the burial chamber is parked a huge sarcophagus.

After Lu Yuan observed the surroundings, he carefully opened the sarcophagus.

The sarcophagus opened, and what appeared in front of Lu Yuan was a lifelike face.

Although the person in the coffin doesn't know how many years he has been dead, he still maintains his pre-death appearance.

Lu Yuan looked at the person in the coffin and couldn't help but stand for a while.

Because he was so shocked.

The man in the coffin is a typical Oriental race, and more importantly, he is actually wearing a curved deep coat.