Lu Yuan compared the petroglyphs with the murals in front of him.

He was surprised to find that the style of the paintings was actually the same.

It's just that the murals here are a little more elaborate.

From this, Lu Yuan surmised that the people who built the building and painted the murals were actually the same people living in other parts of the Sahara.

The blacks who once lived in this oasis were supposed to be slaves captured by the men in armor depicted in the murals.

Unfortunately, the faces of these armoured men were completely obscured, and the armor they wore was never seen anywhere else, so it was impossible to tell which race they belonged to.

Lu Yuan's first thought was naturally the nation of the black people themselves.

Modern research suggests that it was the Bushmen who occupied the Sahara Desert at that time.

In antiquity, the cultural center of the Bushmen was the Sahara.

The Bushmen, also known as the San people, are now mainly found in Namibia, Botswana, Angola, Zimbabwe, South Africa and Tanzania.

The Bushmen were the first indigenous people of South Africa, and today the Bushmen have no writing or their own country.

They have lived a primitive hunting life for thousands of years.

However, in their own legends, their ancestors once established a powerful empire in the Sahara.

Later historians have also found some ruins in the Sahara.

At the same time, there are also accounts of the black Saharan empire in Egypt and even in some of the writings left by ancient Babylon.

Based on limited records and legends, scholars speculate that this fabled empire should have been a slave empire similar to the Hittite Empire.

However, Lu Yuan soon denied his original speculation. He found an entire paragraph of text on a piece of wall that had collapsed.

It is well known that the Bushmen did not have writing, and the writing on this building indicates that the civilization here is somewhat higher than that of the Bushmen.

Lu Yuan continued to explore the site with doubts, and soon he found an unusual mural.

It is a colorful portrait of a person, and this portrait is a huge bust at a height of 4 meters.

Strangely, however, the figure in this portrait appears very strange.

He has no ears, no nose, no eyebrows, not even a mouth.

There was only one pair of eyes on the whole face, and not only that, but the position of the eyes was not quite right.

One eye grows in the center of the face, and the other eye grows on the side of the head.

No matter how Lu Yuan looks at it, he has a terrifying feeling.

After stabilizing his mind for a while, Lu Yuan gradually felt that the portrait of this character was a little familiar, as if he had seen it somewhere.

After thinking about it for a long time, he suddenly remembered that when Sun Jia was helping him find information, he found a record of a giant portrait.

Lu Yuan quickly turned on the computer and searched in the database, and soon he found what he was looking for in the database.

It is recorded that in 1956, someone found a rock art six meters high in a cave.

The petroglyph also shows a bust figure.

Lu Yuan looked at the pictures on the information, and after comparison, the two busts were basically the same.

According to the data, this character, who looks very different from the earthlings, is called "the great Martian god" by researchers!"

Researchers have found some of these images in other places, and they usually appear in sacrificial scenes.

Researchers believe that this is the god in the hearts of the ancient Kunlun people, but it is unknown where he arrived from!

However, Lu Yuan believes that they are definitely not earth humans.

Because he saw in the data that in the cave where the petroglyphs were found, other portraits of people appeared at the same time.

Judging by the pictures on the profile, the costumes and helmets worn by these characters are very bizarre.

It doesn't look like ordinary clothes, it's a spacesuit.

Lu Yuan suspected that these people in spacesuits were such strange creatures.

However, Lu Yuan didn't care too much, if it was before, maybe he would have shouted a little.

Now accustomed to all kinds of things related to prehistoric civilizations and aliens, he is now used to it.

Relying on the advantages of the storage space that is now large enough, he simply moved the entire site into the space after a simple study and a good job of protection.

After doing this, Lu Yuan inadvertently looked at the lake below the mountain, and he found that there seemed to be something in the lake.

He is also tired after a day's tossing today, so he plans to rest for the night first, and then go to the lake to find out the next day.

After a brief tidying up and washing, Lu Yuan lay down in the tent.

Because it was still early and he couldn't sleep all at once, he lay down in his sleeping bag and continued to think about the problems of this oasis.

After some thought, Lu Yuan felt that there were several situations in this oasis that needed to be clarified.

First of all, why this oasis causes the positioning system to fail.

The second, that this oasis is so huge and so clearly out of place in its surroundings that it is not present in all accounts.

In the various maps that Lu Yuan could find, this oasis was not marked.

Third, according to the clues provided by the village chief, this is the legendary eye of the sun, but where is the death legion mentioned by the village chief?

Fourthly, according to satellite imagery, the Eye of the Sahara is not far from this oasis.

Lu Yuan had already observed during the day, except for the hill where he was now, there were flat rivers all around.

It stands to reason that the Eye of the Sahara should be visible from where I am now.

But in fact, I didn't even see the shadow of the Sahara Eye.

Finally, judging by the building found today, this oasis was originally inhabited.

But where did the people who lived here go?

And whether it was the prehistoric civilization of the earth humans or the aliens who came from there who ruled this place.

These questions flooded in Lu Yuan's heart, making him more and more curious about this mysterious oasis.

Just as Lu Yuan was thinking nonsense in the tent, a strange mist emerged from the lake water below the mountain.

The fog seemed to be alive and gradually spreading throughout the oasis.

There were not many wild animals in the oasis, but they seemed to be frightened and ran desperately to the hill where Lu Yuan was.

The strange noise outside the tent quickly alarmed Lu Yuan, and he got out of the tent.

At this time, the bottom of the mountain was completely occupied by a thick fog, and all the animals had gathered on the mountain.

Lu Yuanyun had enough eyesight, and he found that some black figures could be faintly seen in the dense fog.