As if he noticed the shock that humans were unintentionally revealed, Solomon continued: "We didn't believe it at first, and thought it might be a hunting trap."

"But in recent decades, there have been too many civilizations that have gained benefits."

He raised his fingers and gestured one by one: "Some low-level indigenous civilizations have purchased supplies and developed technology in just a few decades."

"There are also some civilizations that have been optimized. Everyone is like a dragon, smart, strong and strong! Gene optimization is not an extraordinary fire seed in the idealist field, but an optimization from the fundamental level. Do you know the genes?"

"There are also quantum computers! If you want to develop materialism, you need computing power no matter what."

"In the past hundred years, the news has spread farther and farther across this continent, and we have intercepted hundreds of electromagnetic wave signals." The leader, named Solomon, became more and more excited. "These good-luck civilizations have taken off in a very short time, but the price they paid is insignificant, almost none!"

"So we want to try our luck, too."

"Some of these civilizations soared into the sky and became level 3 civilizations. Not only technology, physical objects, but also various machines can be obtained from the ruins! Our Ata Steel civilization has been stuck in a certain level for a long time, and we are also looking forward to an adventure."

Lu Yuan couldn't help but ask: "Where is the technology of Level 4 civilization? Doesn't it exist?"

"You're really joking." Perhaps realizing that humans are already a third-level civilization, Solomon shook his head, "The fourth-level civilization is really far away."

"From the beginning of the third-level civilization, we have to use civilization points to build ourselves. This is a long construction process."

"Even if there is ready-made technology for you, the entire construction cycle is still long."

If a large number of civilization milestones are not completed, most civilizations are actually poor, with the number of points on hand ranging from hundreds to thousands.

This amount of money is obviously difficult to break from level 3 to level 4.

You can only endure slowly or encounter some adventure.

"So the technology of the fourth-level civilization... is not without it, but no one buys it." Solomon shook his head, "The 'value' it requires is amazingly high, and no civilization can afford it."

"And, there is a rumor that is circulating widely..." He deliberately kept it a secret.

These words made Lu Yuan very moved and couldn't help but ask: "What kind of rumor?"

"That ruin... is waiting for the inheritor!"

"As long as there are qualified inheritors, those aliens will give away everything for free!"

"It's just that all current civilizations do not meet the inheritance requirements. That's why they hide it... The stronger the civilization, the easier it is to obtain inheritance."

Humans were once again shocked.

Even Lu Yuan’s net worth is dilated and his heart beats wildly!

This is really a pie from the sky, the kind that can crush people to death.

He thought to himself: "It's really worth going over... Even if there are risks... our strength has grown a lot, most of the risks can be controlled."

Next, both sides changed a topic.

Since we have sat down and negotiated carefully, it is natural to exchange knowledge, materials and technical exchanges.

Every civilization has some strange tricks and tricks, such as some variant glyphs, which are discovered with the inspiration of some geniuses. There are also some strange forging techniques.

As the saying goes, "There are orders of hearing and knowledge, and there are specialties in professions." Even a master of craftsmen like Lu Yuan has many techniques that he has never seen before, so it is good to learn more.

So in the next period of time, Lu Yuan, as the "representative of craftsmen", held a craftsman technical exchange meeting, and he was actually quite looking forward to it.

However, it is obvious that due to the lack of strategic mutual trust, the other party did not come up with anything decent, and it was all about ordinary and boring knowledge.

Just like a doctoral student taking kindergarten courses, Lu Yuan was drowsy.

Since the other party is not very sincere, humans naturally just deal with the matter simply and have not explained "Field Industrialization" and "spiritual plant field".

Fortunately, the trade progress in several other fields is quite good. Humans used the extra ice-attribute ore to exchange for some soil and wood-attribute ore.

There are also various extraordinary consumables, and they have sold about 50-60 Lingyun.

The consumable varieties, quantity and quality of the Akasteel civilization are actually not as good as those of humans, but there are always some that humans do not have.

Green City can't be so stupid that it takes out all kinds of things.

At the beginning, the varieties traded were all those with low grades and large production volumes, such as Crystal Winter Valley, Beanworm Milk, and various alcohols, beverages, etc. Only later can trade some valuable goods.

In short, this negotiation lasted for more than three days, and both sides still gained a lot - don't dislike these three melons and two dates. Even if the national treasury in Green City is full, every penny that should be earned is worth cherishing.

Solomon seemed quite satisfied with the other party's leader.

He nodded: "In the past, we have obtained some of the remaining 'value degrees' of other civilizations through trade means. This value degree is given to you, and it is easy to identify, but don't forge it, because every coin has a secret pattern."

"Maybe in the future, we still have opportunities for trade."

He took out several golden coins, with a complex code composed of glyphs on the surface.

This password requires a secret key to decipher, and this secret key is in the hands of the ruined stranger.

"Why are the relics of higher civilizations so generous?" Lu Yu seized the opportunity and asked, "How do they operate for a long time without spiritual rhyme or civilization points."

Solomon put these coins in the hands of a diplomat: "This is normal, the fifth-level ruins naturally had their energy perpetrated forever."

"The purpose of those aliens is to support the civilization of the ninth era, so it's okay for them to suffer any losses."

"As for why they use value... um, according to the analysis of some conspiracy theorists, selling antiques from their own homes may allow the other party to see their own history and know their future destiny, so some civilizations are unwilling to sell them. Of course, the mainstream saying is that they are choosing inheritors."

"As for the real reason, it's not something we can recognize."

Lu Yuan frowned slightly, as if he was thinking carefully. After a while, he asked, "What is the name of this civilization ruin?"

Solomon was silent for a long time and shook his head: "We don't know either. But according to the documentary records of the last era, the remains already existed."

"Therefore, no matter how it is, it is, the seventh era, or even a longer civilization."

The leader in power armor seemed to suddenly think of something and patted his forehead: "According to the report of our diplomats, the most classic symbol of the ruins is a pillar of heaven, as if it can lead to the distant moon!"

"What a pity, time has passed, and the pillar of the sky has collapsed halfway and can no longer be used."

When others heard this, they were amazed in their hearts. Isn’t this a space elevator?!

It is actually very difficult to build a space elevator in Pangu continent, because space elevators need to rely on the planet's autobiography to maintain stability.

Whether Pangu Continent is a planet or does it rotate or not is still an unknown number.

What's more, the atmosphere here is much thicker than the earth, and various storms of more than ten levels are common. There are also various idealistic radiations in space. It is indeed very amazing that civilization can build space elevators.

But Lu Yuan's mind was "bang bang", and the news exploded like a nuclear explosion!

“To the Moon?!”

"This is not the remains of the civilization on the top of the tower, is it?"

"No, it's not! The old strange people said that there have been no individuals living in this world in the top civilization."

As the peak materialistic civilization, tower top civilization is not a carbon-based species at all.

They have long since transformed themselves into energy, and they cannot become aliens.

Even if any individual from the top civilization is alive, Pangu Continent will not become what it is now.

He racked his brains to think: "Is it the affiliated civilization of the tower top civilization? Well... the strength of the affiliated civilization is much worse."

"Or other very lucky ones picked up a civilization on the top of the tower and maintained this ruin?"

"There is another possibility. This is not the tower top civilization, but the ruins of the thick earth civilization of the Sixth Era."

The reason why the Sixth Era was strong was that the civilization on the top of the tower opened up new roads and left a rich heritage.

"No, there is no need for attached civilization on the top of the tower."

"There is a high probability that the Thick Soil civilization has picked up the legacy of the fifth era."

"So there is a high probability that this ruin is a Thick Earth civilization, or its affiliated civilization... Well, you really have to go and take a look!"

Lu Yuan was shocked by this idea for a while, and he couldn't help but start to doubt that he really had such good luck?

Or maybe he is really the real son of Pangu Continent? Pangu Continent brought him here?

But when I think about the stronger my strength and greater my responsibility, I can't help but feel a little confused.

"I can't bear the responsibility of peak civilization."

"I won't talk about the top of the tower, it's completely another dimension..."

"The Thousand Earth civilization is so powerful that it can escape, but it perishes for the whole world. In history, they have been removed from the list, leaving only one name."

"Life is as brilliant as summer flowers, death is as quiet as autumn leaves. I can't do it... nor can humans..."

...

That's it. After making up the idea, the diplomatic teams of both sides made an appointment to go to the [Relics of Higher Civilization] together.

The two cities were one in front and one behind, and more than 10,000 kilometers were separated by more than 10,000 kilometers towards the direction of the eastern coastline.

A large city of Akasteel civilization has a moving speed of about 8 kilometers per hour.

It can sail 200 kilometers a day.

Although the speed of Green City is a little faster, humans do not know the specific location of the ruins, so they can only follow behind the Akagang civilization slowly.

After more than six months, we passed through the ocean and crossed several mountains and plains. In a basin, people finally saw an extremely large technological remains!

"This is so huge..." Even a person as knowledgeable as Lu Yuan could not help but feel a little shocked.

The landform of the basin is like a huge industrial maze, with various tracks intertwined with overpasses. The surface is covered with countless huge metal plates, and hot magma-like substances flow in the gaps between the plates, emitting a faint red light.
To be continued...