After some calculations, Lu Yuan quickly found the right direction.

Half an hour later, he finally stepped out of the sphere of influence of Qimen Dunjia.

What appeared in front of him at this time was a passage full of technology.

Lu Yuan was surprised to find that the entire passage was paved with diamonds.

Lu Yuan couldn't help but be stunned when he looked at the diamonds all over the ground, this diamond all over the ground was indeed quite shocking.

"I think there are more diamonds used to lay this channel than there are in circulation in the world today."

Lu Yuan found that there were not only many diamonds here, but they were also very large.

It is known that the largest diamond found in the world today is the Cullinan diamond.

The Cullinan diamond is the largest diamond in the world, weighing 3,106 carats, or 621.2 grams.

On January 25, 1905, the Cullinan diamond was discovered in the Premir Mine in South Africa (Azania).

It is pure and transparent, with a pale blue hue, making it the best grade of diamond.

At that time, its appearance caused a diamond craze in the world.

But the Cullinan diamond, once the largest diamond in the world, is not as small as the smallest diamond here.

According to current research, the number of diamonds on the earth is actually very large.

But due to the formation of diamonds. The Earth's environment makes it difficult to produce large diamonds.

Whether naturally occurring or cultivated, they are relatively small.

When Lu Yuan looked at these diamonds, the first thing that came to mind was naturally man-made diamonds.

But after a closer look, he discovered that the diamonds were not man-made, but naturally formed.

Naturally forming such a large diamond is definitely not possible with the earth's environment.

So where can such a large natural diamond be formed?

At this time, Lu Yuan thought of the two eldest brothers in the planetary family of the solar system, Jupiter and Saturn.

Jupiter and Saturn are both gas giants, and both planets have very high air pressure.

According to scientists' observations, diamond rains often fall on these two planets.

These natural diamonds are very rare on Earth, but they are nothing to Jupiter and Saturn.

"It seems that the technology level of the Atlanteans is even higher than imagined!"

Lu Yuan sighed and walked forward along this passage made entirely of diamonds.

As he walked, he kept speculating in his mind about what had caused the Atlanteans to spend so much money to lay such a passage here.

What is the place behind this passage, and whether the back of the passage is also made of diamonds?

Fortunately, the passage was not too long, and Lu Yuan walked into a hall a few minutes later.

The scene in front of him shook him again.

In front of him appeared a hall, which had an area of at least 10,000 square meters.

But even such a large hall is made entirely of diamonds.

Moreover, the diamond is not only a thin layer, after Lu Yuan used his divine sense to probe, he found that the diamond layer here was actually ten meters thick.

By this time, Lu Yuan finally knew the reason why the Atlanteans chose to use natural diamonds instead of man-made diamonds.

In the case of being able to reach Jupiter or Saturn, the cost of using natural diamonds is obviously cheaper than using man-made diamonds.

"Then why did the Atlanteans build this hall with diamonds?" a new question rose in Lu Yuan's mind.

"The most important thing about diamonds is that they are strong, and not only that, but they are also able to block out some kinds of energy. ”

Lu Yuan thought about the characteristics of diamonds, "Strong... Isolate energy..."

Lu Yuan pondered repeatedly in his heart. At this time, he suddenly thought of a myth and legend that had been circulating among the primitive tribes of Kunlun Continent.

In the myths and legends of Kunlun Continent, diamonds are used to seal demons, so in the eyes of the natives of Kunlun Continent, diamonds themselves are evil.

"Seal the Demon ......"

"Could it be that this hall is also for the defense of someone?"

An idea suddenly popped into Lu Yuan's heart.

In order to verify his thoughts, Lu Yuan probed in the hall.

Sure enough, he soon noticed something unusual in the middle of the hall.

The diamond layer was thicker here, and after his divine sense, there was a collapsed passage below the center of the hall.

Although this passage had collapsed, he could still see the enormity of this passage from the traces it had left behind.

However, due to the age, Lu Yuan can no longer judge the cause of the collapse of this passage.

Of course, it doesn't matter whether the passage collapsed naturally or was man-made.

From the situation of the hall, it is enough to understand that the Atlanteans built this hall to block this mysterious passage.

Lu Yuan is now interested in what exactly this passage leads to.

Lu Yuan wanted to dive into the ground to have a look, but unfortunately this layer of diamonds also forced Lu Yuan to give up this plan.

The diamond was so hard that even Lu Yuan couldn't do anything about it, let alone pass through it.

Retreating, Lu Yuan had no choice but to turn his gaze back to the hall itself, which might be able to leave some clues for himself.

Lu Yuan first had a harvest in a place on the east side of the hall.

Here he found a book made of special metal.

Lu Yuan weighed the book in his hand, it was very lightweight, even lighter than a paper book.

Lu Yuan could only tell that the material of the book was made of some kind of alloy, but what kind of metal it was was unknown.

One might wonder why the Atlanteans, with such high technology, would make physical books instead of e-books or other virtual books.

But Lu Yuan didn't think it was strange, but thought it was normal.

Although e-books are very convenient, they can be stored for a relatively short period of time, so if they are general information, there is no problem in using electronic materials for storage.

But if you want to store it for a long time, it's actually better to use a physical file.

......

Lu Yuan suppressed the excitement in his heart and opened the book.

Looking at the words in front of him, Lu Yuan was ecstatic.

Because he really knew these words, the whole book was written in the witch script of the Yu Dynasty.

Lu Yuan was not only able to understand this book, but also directly proved his previous speculation that in the era of ancient civilization more than 10,000 years ago, the common text at that time was Wuwen.

At this moment, Lu Yuan couldn't help but feel a sense of pride in his heart.

After all, Zhu Xia is the descendant of the Yu Dynasty, although some other bloodlines are mixed in the way, but after all, the main bloodline has not changed.

Although Lu Yuan was able to understand Wuwen, for him, the words on this book still made him feel a little obscure.

It took him three days to finish the book.

At this time, it dawned on him that the book in his hand turned out to be a history textbook for the Atlanteans.

Through this book, he can be said to have gained a lot......