I became a god by treasure hunting after arriving 500 years early

Seeing everyone's morale high, Lu Yuan found himself somewhat inspired.

He looked forward to the day he could return home in glory... Well, the sensation that day would cause was truly unimaginable.

Just then, Comrade Lu Ying from the reconnaissance division raised his hand and indicated, "The direction of our mother civilization is the northeast, and according to our investigation, there lies a vast ocean. Our Sky City can't just stop and rest anytime; this poses a huge challenge to our energy system."

Yes, there was an ocean on that side, and humanity had already mapped it out clearly.

Nowadays, if one wished to return to the mother civilization, one had to cross the ocean.

But given the vast size of the Pangu Continent, the actual size of the ocean was beyond human knowledge.

Hence, energy reserves must be ample; otherwise, running out of energy mid-way would leave us with nowhere to turn for help.

And energy was divided into two types: Physical Energy and Ideal Energy.

"The current Physical Energy mostly comes from nuclear power units."

"We mined a pretty decent uranium mine a few years ago, didn't we? If we use it solely for power generation and not for weapons, these uranium mines could last for about 120 years," said Professor Desert from the Great Engineering Institute. "If we switch Sky City's flight mode to a Floating mode, we could even reduce the power consumption further."

120 years, is that a lot?

It seemed like plenty, but it wasn't enough to fill the need for a sense of security.

The fear of insufficient energy!

Seemingly noticing everyone's confusion, Desert explained, "Flight mode relies on Pandora Crystal Stones to completely negate the gravity of rocks and depends on the buoyancy of air to keep the city hovering at an altitude of 30,000 meters."

"Floating mode works similarly, except it utilizes the buoyancy of water to keep the city afloat on the ocean surface, without having to completely negate the gravity of the city, thus requiring less energy."

"When the Green Grass People designed the city, they already considered this. Thus, the thickness of the city's foundation is particularly large, and the walls are adorned with Flow Carving from fluid dynamics."

"What are the benefits of Floating mode?" Lu Yuan asked.

"On one hand, it's energy-saving. As everyone knows, the buoyancy of water is 800 times that of air. We wouldn't need to run our power grid at full capacity; about just a quarter will do..."

"Moreover, Floating mode makes it easier for us to harvest resources from the seabed. The ocean is a vast treasure, richer than the land, and even the powerful Green Grass Civilization wouldn't miss the opportunity to exploit its riches."

Desert spoke at length, "The last advantage is to avoid enemies in the sky."

"Sky City is not entirely without enemies. When facing some flying anomalies or extreme storms, the sea is a safer place to be in."

"If we encounter particularly large sea monsters, we can always raise the city back up."

"Shouldn't we capture them for alchemy?" quipped Old Cat, the comrade of the Greedy Demon God.

This made everyone laugh.

The increase in strength indeed gave everyone much more confidence.

Desert cleared his throat, "Moreover, we have two energy systems. The first is the Physical Energy system, which is the standard supply under normal conditions. We have a nuclear reserve for 120 years, and components can be produced by the Universal Factory, so there's no need to worry."

"But if a war breaks out, the power grid could be destroyed. To avoid the city sinking, we also prepared a distributed Ideal Energy system. That means within the network of Pandora Crystal Stones, we have a small supply of Spirit Crystals for energy."

"1 unit of Spirit Essence could allow the city to fly for 4 days, or float for 16 days."

"We've prepared about 20 Spirit Essences, enough to supply 80 days of flight time, or floating on water for 320 days. In case of a major crisis, this emergency time should be enough, right?"

Ideal Energy, because it's distributed, is like a series of batteries.

Even if there are explosions in some places, the rest of the Pandora Crystal Stones would still work normally.

Lu Yuan nodded, "Your arrangement is very good, as long as we don't easily sink to the bottom of the sea."

In summary, the ambitions of humanity were not extinguished but were burning more fiercely than ever.

The "sea crossing" of Sky City was unanimously approved!

Led by Guo Weiqiang, the Engraved group of more than one hundred and fifty formal employees began painting and repairing the "Floating Engraving" on the walls.

This combination of engravings was learned from the Undying Giant Turtle and effectively reduced water resistance.

If one side of the current experienced less resistance and the other side more, a natural propulsive force would be created, allowing the entire city to move forward slowly.

"We'll guarantee to get it done within three months!" Guo Weiqiang made a firm commitment. "Commander Lu, take a day off in the Safe Zone, and by the time you come out, it'll be all set! It'll be quick!"

Lu Yuan rolled his eyes, Old Guo, I always feel like you're teasing me.

After the meeting, he couldn't help feeling amazed; humanity had indeed become much stronger. In the past, he was the only one skilled in engraving, which was utterly overwhelming.

But now, there were over one hundred and fifty people skilled in "Floating Engraving."

...

Lu Yuan didn't stay idle either; he instantly teleported into the Safe Zone of the Rize Civilization with the Tree of Life.

Compared to the drastic changes of the Human 18th Civilization, the changes within the Safe Zone were very minor.

Twenty years outside equated to just under three months inside...

Indeed... too short.

The First Branch of Rize Civilization was building a foundation for a "Floating Fortress."

Ever since Lu Yuan sold them the Pandora Crystal Stones, almost every Lize City began frantically constructing "Floating Fortresses."

Once they left the Safe Zone, they could assemble a Floating City at the fastest speed.

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However, in just three short months, not even a foundation had been laid.

"You guys...sigh, should have come out long ago."

"Wasted twenty years for nothing, and nothing happened in those twenty years!!"

Having traveled back and forth many times, Lu Yuan no longer held back and began to lament, "Now we're all leaving, and you're still dawdling with construction in the Safe Zone... Really..."

The one receiving him was the Governor of the First Branch, Moxi.

This lizard man offered a wry smile, "You can't say that, Mr. Lu, in case of a major crisis, you can lift the city and flee. But what about us then? We'd be doomed."

"Moreover, we used that Metal Communicator... we still need to endure a few years, to observe the outside world."

"It's been so long already without any Milestones; a little more time won't make much difference."

Using the Communicator was after all a significant risk.

The Rize people truly dared not open up the Safe Zone... if it were to be exposed, and some super civilization came over, and they ended up annihilating the humans as well, who would they turn to for reason then?

"That's true..." Lu Yuan nodded and opened the Storage Space, taking out the last batch of trade goods.

Mostly they were Extraordinary Resources from Green Mountain, along with a small amount of equipment crafted by craftsmen.

After a careful check, Lize City also moved out the various technological goods they had prepared, asking Lu Yuan to quickly load and unload them.

"Our Physical Technology is now identical to yours," Lu Yuan joked, "I hope in a few hundred years, there will be some divergences."

"Hey, divergences are good, without them, wouldn't it be monotonous?"

Everyone arrived in front of Great Lai Empire's spacecraft, which looked like a giant oval stone, pure White Jade in color, resembling an oversized pebble.

From the current perspective, the other technologies of this spacecraft weren't that impressive.

But its Spatial Technology indeed far surpassed human understanding.

These past few months, the Rize people hadn't been lazy either; they had installed some Pandora Crystal Stones onto the spacecraft, otherwise, with its tens of millions of tons in mass, even the brute force of the Tree of Life wouldn't be able to move it.

Lu Yuan didn't dilly-dally, "I'll go in first and see what the situation is like."

"That would be great, thank you."

Lu Yuan sighed softly, feeling a bit nervous. This time even his comrade Old Cat wasn't by his side... It couldn't be helped, Old Cat felt such trivial matters were no longer worth worrying about and didn't need to follow.

It was very busy! Your next chapter awaits on My Virtual Library Empire

"Whoosh!"

Following past experience, Lu Yuan successfully Instant Teleported inside.

Still it was pitch-black darkness.

Cold and viscous.

Like being in a graveyard in the dead of night, there was an indescribable sense of horror.

The power of the [Ghost] remained unfathomable.

[It's you, lad.]

[How many days has it been and you've come back? Seems like you've encountered some insurmountable problems?]

This voice rose from the depths of his heart, filled with a mysterious allure.

Lu Yuan turned on his flashlight, feeling the icy atmosphere; his blood circulation was accelerating, and his heartbeat was rising—but luckily, it wasn't beyond expectations.

The ship's time was less than a year, the [Ghost] still hadn't broken the Sealing; this indeed made him breathe a sigh of relief.

"I just came to take a look. Do you have something to say?"

"Better say it now, because I'll be leaving soon," Lu Yuan said indifferently.

His words unexpectedly made the overconfident Mirror [Demon] pause.

Even with its intelligence, it couldn't make sense of the situation.

[What do you want to know? I know everything.]

"Mythical Equipment, do you have it? I want the forging method for Mythical Equipment."

That question was too difficult!

After a long while, that mysterious voice finally said, [I don't have it. But I know that the Myth... is another realm...]

Mirror [Demon] started to speak, then stopped. As long as Lu Yuan had desires, it always had a chance to take advantage.

"So the Myth is another realm... Tsk, interesting. Do you know what realm I am?" Lu Yuan flashed his "Craftsman Master" title.

Titles, naturally, can be flaunted—discovered with the Identification ability.

Lu Yuan couldn't possibly reveal titles like Demon Hunter or Monster Slayer; those were personal secrets. Only with the title "Craftsman Master," which had value only if shown!

Lu Yuan didn't know if the Mirror [Demon] possessed Identification ability...

But what did it matter if he showed it off?

...

(PS: Please cast a Monthly Ticket!)

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