Back at home, Lin Yun rested for three days before he came to his senses, in just fourteen days of research, his spiritual power was consumed eighty percent, which was a very terrifying thing for a half-step Da Luo Jin Immortal.

Now, everything is back on track, Lin Yun has divided his Yuan Shen into four parts, one part is responsible for comprehending the laws of heaven and earth, one part is responsible for researching the source species, and one part is responsible for studying the Void Battleship!

The last part, in charge of his daily life!

During the time he was researching the Void Source Core, the designers of the Star Tower had thoroughly perfected the construction diagram of the Void Mothership!

In other words, as long as the resources are in place and the manpower is in place, production can begin!

Ordinary components can be produced in the large-scale workshop of Star City, but some core components are not capable of being produced by Star City!

Even, there are some things that can only be refined by the hands of a Heaven Rank refiner!

Lin Yun, who had cultivated well, personally made a big meal for himself and rewarded the Five Organs Temple!

When he was idle, he took out the drawings of the Void Carrier and looked at it, he planned to build the first Void Carrier within three years!

However, the resources consumed to build the Void Mothership were too many, and even if he used up all his wealth, it would not be possible to make much!

Therefore, he only plans to produce three to five Void Carriers, and the remaining Void resources will be used to produce ordinary Void Warships!

With the Void Carrier as a reference, the production speed of ordinary Void Battleships will definitely not be slow!

There are hundreds of millions of parts needed to produce a Void Carrier, but most of the parts are ordinary components, and the technical content involved is not high, and the super large factory in Star City can produce them!

Even the parts that require a lot of technology can be made through the Universal Creation Furnace in the Void God Realm!

The universal furnace is a subsidiary product of the Chaos Furnace, it is a very precious creation and transformation treasure, ranked as the acquired spiritual treasure, its original name is the intelligent synthesis furnace, it is the perfect product of the combination of fantasy civilization and scientific and technological civilization!

After so many years of continuous tempering, the universal furnace has become much stronger, as long as there are drawings, it can automatically create a finished product!

However, it still can't craft a Celestial Rank item, because the Celestial Rank item contains a special power of law!

Most of the time, the Universal Creation Furnace is not allowed to be used, as it is so powerful that it can make all the refiners, mechanics, and forges below the Heaven Rank unemployed!

In the long run, the Earth Alliance will lose the ability to create!

Therefore, the universal furnace can only be used in times of war, or when there are not enough human resources!

Now, in the case of insufficient human resources, the Void Mothership is too large, and there are some special parts that can only be built through the Universal Creation Furnace!

Of course, the parts that can be manufactured in these factories don't need his hands yet!

But some extremely special parts, especially those involving the power of the laws of heaven and earth, are the real headaches!

"The core problem of the Void Mothership has actually been solved by me, the Void Source Nuclear Energy provides unlimited energy, with the Void Source Core, the energy engine can be manufactured soon, and then it will be much easier!" Lin Yun muttered to himself!

At present, in order to study the Void Battleship, he has already mobilized part of the power of Star City, and next, he will mobilize the power of three to five Celestial Cities for the research and production of the Void Carrier!

If he wants, he can mobilize the power of dozens of heavenly cities!

However, there is no need for that, there are some things that cannot be solved by the number of people, such as ecological space!

"Ecological space is the most critical part of the Void Mothership, and it is best to be a small world that is endless!

In the entire Earth Alliance, there are very few people who are good at the laws of Aoki and the laws of life, so they can only be handed over to Ling'er to solve, she has fused the seeds of the world, has the memory of opening the world, and with her cultivation of Tailuo Jinxian, it is not a problem to create a small space ecological space! ”

"As for all kinds of complicated operating systems, energy transmission systems, and other technological things, leave it to the Star Tower to solve, they are experts in this area!"

"The weapon engine on the Void Mothership, I'm afraid it will take a large number of Heaven Rank Refiners and Heaven Rank Mechanics to complete, this matter, just leave it to the old man of fire to do it, they should be very idle now!"

As soon as the refiner conference ended, the old man Huo formed a group to resign from the position of the presidents of the major trade unions, and they successfully retreated into the background and became idlers!

This is also Lin Yun's plan, their group of master-level figures, dealing with those union sundries all day long, it is really a waste of resources! How good it is to study the Great Dao in peace of mind, as long as each of them can produce a Heaven Rank item in a month, the strength of the entire Eternal City can provide several percent!

Lin Yun put away the drawings and got up from the sofa, he was going to make the Void Source Core!

Before that, though, he needs to do some preparation! First of all, the things that should be arranged will be arranged first, and then the raw materials will be prepared!

In the process of preparation, Lin Yun suddenly remembered something, in the treasure house of creation, he really wanted to have no immortal gold.

Immortal Gold is an extremely special rare metal, an alloy synthesized in the body by ancient gold eaters!

It is called the Immortal Gold because this metal cannot be destroyed at all with the same level of metal, and it also has super energy conductivity, and has the effect of amplifying energy, which is extremely precious.

The indestructible gold only has three levels: mortal level, immortal level, and holy level, the mortal level is equivalent to the best of the earth level, the immortal level is equivalent to the best of the heavenly level, and as for the holy level, it is equivalent to the top innate material!

Lin Yun's original two gold-devouring ants were mortal-level, and they could generate mortal-level indestructible gold!

After more than a hundred years of cultivation, coupled with the fact that those two ancient gold-devouring ants have strong bloodlines and are not short of food, they have now grown to the level of Taiyi Golden Immortal, and even bred a group of gold-devouring ants!

Theoretically speaking, there should be no shortage of immortal gold in the treasure house of creation, but Lin Yun didn't see any of it!

The Immortal Gold is an important material for the manufacture of the Void Source Core, and if it is not, the quality of the Void Source Core will be much worse!

"Xiaoyu, what's going on?" Lin Yun asked, Could it be that the Immortal Gold has been consumed, it is impossible!

"Master, you have forgotten that the indestructible gold was a liquid when it was first born, and once it leaves the stomach space of the gold-devouring gold, it will solidify into a liquid in a short period of time, even if it is an immortal-level indestructible gold, it can only exist in the form of a liquid for three days!

And the indestructible gold solidified into a solid is almost inviolable, and even the best immortal artifacts can only leave a little white mark on it, which is difficult to use! The intelligent elf Xiaoyu timidly explained!

"Oh......, I was negligent, it's been too long, and there are some things that I don't remember very clearly!" Lin Yun's old face flushed, he didn't expect it to be this reason, for him, thousands of years have passed, and some things are really not clear if you don't think about it seriously!

"It seems that I should go to the elven world for a walk, anyway, I've been back for so long, and I haven't gone anywhere else!

It's time to go out and have a trip, and I hope that other worlds can bring me a different kind of excitement! ”

It's been almost a year since he's been back, and he's been in the Eternal City all day, and he hasn't gone out much, standard otaku life!

Of course, the travel is only incidental, and the main purpose is to go to the elven world to get some immortal gold back!

The adult gold-eating ant is too large, hundreds of miles long, it looks like a small planet, and the most important thing is that it is also very edible, and it eats a lot of metal materials every day!

Such a huge creature is too much space to keep in the Eternal City, where every inch of land is valuable!

After all, in addition to those two growing gold-eaters, there are also many smaller juvenile gold-eaters!

Therefore, Lin Ling'er raised them on a medium-sized island in the elven realm, and every once in a while, he would send people to feed them, and their growth was not affected!

"Xiaoyu, let's get ready, and we'll go to the elf realm tomorrow!"

"Yes, master!"

……

A day later, the elven realm!

The Elven Forest is located in the southern part of the continent of Sauron, and the climate here is hot and humid, which is very suitable for the growth of grass and trees!

In the center of the Elven Forest, an ancient tree of life is as high as 10,000 feet, with green branches and leaves covering the sky and the sun, as if this ancient tree has grown for countless years, and the thick trunk of hundreds of people can't hug it, and the branches are vigorous, and the lush canopy stretches for hundreds of miles.

In fact, this ancient tree of life has been born for less than 100 years, and it is still in its infancy!

"Ahem...... don't get an elevator in such a high place!" Lin Yun stood up from the pile of leaves!

Early the next morning, when he was ready, he teleported to the east gate of the Eternal City, and jumped from there!

The Eternal City is in the Elven Realm, so as soon as he leaves the city gate, he will enter this world!

Lin Yun's heart moved, and he looked at the Ancient Tree of Life, and he found that this Ancient Tree of Life exuded endless aura, and it was filled with a huge amount of life energy, that is to say, this Ancient Tree of Life could absorb the matter and energy between heaven and earth and transform it into life aura.

Although it is not as bright as the World Tree, it can be clearly seen that there is also a faint brilliance flowing between the branches and leaves of the ancient tree in front of you, but it is only slightly inferior, so this ancient tree of life can be regarded as having some characteristics of the World Tree!

However, this is also normal, this ancient tree of life is a sacred tree created by Lin Ling'er using the divine power of the elf goddess, plus the remains of the ancient elf tree of the previous generation and the branches of the World Tree, as well as the laws of life and the laws of Aoki.

With this sacred tree, the essence of the elves is like a fairyland, because it is constantly producing the aura of life.

At this moment, a golden feather arrow passed through the heavy forest leaves and stuck in the path of Lin Yun's advance, blocking the way.

A beautiful female elf walked out, her head slightly raised, her expression a little arrogant, and said, "Who are you?" ”