Su Yu proposed a series of optimization ideas for energy bombs, which provided alchemists with a lot of feasible research and development ideas.

The alchemists were excited, and they all couldn't wait to go back to the alchemy room of the Ministry of Industry to mix new recipes.

In a sense, the alchemists in the Four Directions Continent have already mastered the mysteries of science, but the degree of mastery is still very shallow.

And Su Yu wants to give full play to the potential of this group of special people, so that they can continue to expand the power and light of science, so as to improve the strength of all aspects of the Yanhuang Empire.

"Drive and go back to the palace. ”

Su Yu smiled and said indifferently.

He could also see that this group of people couldn't wait, and in the face of a group of enthusiastic scientific researchers, the most important thing Su Yu should do was to let them go and let them study what they liked.

Go for the research!

Go make it!

Your fruits will eventually shine in my hands!

After the Imperial Forest Army left here with the emperor in their arms, the Ministry of Works Shangshu dared to leave the test site with the alchemists, and rushed to the Ministry of Works with the experimental data that had been recorded.

Inside the Imperial Study.

Su Yu was touching his chin and looking at a series of technological leaves on the technology tree, as the alchemists and craftsmen of the Ministry of Industry used their ingenuity, they had developed various gadgets based on the energy explosion theory and the steam engine.

At the same time, the appearance of these derivative items also helped Su Yu light up a lot of non-core technology technology leaves, allowing Su Yu to save a large part of the people's energy expenditure.

I have to say that it is good to have talents, and you can save yourself a lot of effort......

But there are still more than 4 million points of people's energy on the body, how should this be spent?

Su Yu began to ponder.

If 4 million is used to form a new army, it is indeed possible, but he currently has no new generals who need to be equipped with a legion, so will the 4 million points of people's energy continue to accumulate and accumulate?

Not......

No, my hands are itchy, and I kind of want to consume!

"System, open Wanjie Mall. ”

Su Yu touched his nose and gave orders to the system in his heart.

He planned to browse the items in the Wanjie Mall, if there were no good things, he would store this people's energy, and if there were good things, he would buy them in advance.

Anyway, the scientific and technological level of the Yanhuang Empire's steam age will be maintained for a while, and only after the whole country is accustomed to the changes brought by the steam engine can Su Yu light up the new technology, after all, it is easy to pull the egg if the step is too big......

The item data of the Ten Thousand Worlds Mall appears on the list on the system screen, ranging from pills, materials, exercises, skills, and talents, to high-tech items, immortal weapons, god and demon armor, and so on.

Although Su Yu's current territory level is enough to open up a lot of permission items, Su Yu doesn't have enough people's energy to exchange many things that make him greedy.

And even if it was an item that Su Yu could see, he didn't want to exchange it, because it was all one-time props.

Unless it is used to save his life, Su Yu rarely redeems one-time props.

"Hmm.... I don't think there's anything particularly good......"

Su Yu held the fragrant tea and flipped the interface on the system screen casually, which felt like his previous life lying on the lazy chair on the balcony, sliding the tablet in every boredom while shopping.

Just as Su Yu flipped to the formation option, he suddenly remembered that the [Zhou Tian Star Dou Great Array-Incomplete Small Array] that he had arranged in Su Wang's Mansion last time had been completely destroyed.

The exchange of that little star array only consumed 100,000 points of Su Yu's people's energy, but at the last moment, Su Yu had the strength to resist the masters of the legendary realm, and I have to say that the strength of the formation is enough to make people look sideways.

It's a pity that the only drawback of the formation is that it can't move.

Su Yu planned to buy another formation after the last battle to save the city, but it was delayed due to a series of things such as subsequent enthronement, development of national strength, and formation of alliances.

"Why don't you exchange a formation?"

Su Yu touched his chin and muttered to himself, making up his mind in his heart.

The defenses inside and outside the palace are very strong, but if there are no guards from the Legendary Realm by his side, Su Yu's current protective power around him is not particularly strong, and he himself has not yet reached the height of the Legendary Realm.

If there is a formation, it will be different, and the palace will undoubtedly become the safest place at that time.

4 million people's hearts and minds.....

It's enough to exchange a very good formation!

Su Yu didn't want to think about the top ten ancient formations, a Zhou Tian Star Dou Great Array needed 10 billion people's energy, which was not something he could contact now.

And the little star formation last time could no longer enter Su Yu's eyes, after all, Su Yu now needed a more powerful formation.

However, the other formations don't look very good, and the cost performance is not as good as the Little Star Array that Su Yu exchanged at the beginning. In the end, Su Yu still set his sights on the incomplete small formations that were related to the ten ancient formations.

Not to mention, let Su Yu find it like this, he actually found a good formation.

[Liangyi Dust Array]: This array was created by the Changmei Dao people, it is the Dharma Protector Array of Shu Mountain, and it is also one of the ten ancient formations. This array is divided into six gates: life, death, obscurity, light, illusion, and annihilation, the six doors are opposite, and the two instruments are echoed, concealing the truth of life two, two life, three, and three life.

Needless to say, none of the ten ancient formations is a fuel-efficient lamp.

From the name and a brief introduction to the array, you can guess the basic power of these two mote arrays.

Two instruments, positive and negative, left and right, front and back, up and down, positive and negative, hot and cold, yin and yang, almost all opposing natures.

Dust, needless to say, microstructure, at least at the particle level.

Liangyi is understood as a rotating Tai Chi, all-encompassing and all-encompassing. The power is mostly to annihilate the target into elementary particles.

The power of the [Liangyi Dust Array] made Su Yu naturally very excited, even if it was as high as 10 billion people's energy, it couldn't make Su Yu back down......

I don't have 10 billion, but I can buy a weakened version!

[Liangyi Dust Array - Weakened Version]: This array is a failure product of the system's copycat Liangyi Dust Array, and its power is only one thousandth. Redemption required for popular energy: 3,000,000 points.

The introduction is very simple, even if it is a weakened copycat version with only one-thousandth of the power of the original formation, it needs such expensive people's energy!

Su Yu had to be speechless, if he could exchange the full version of the Ten Ancient Formations at any time, the power would probably be able to shake the entire Sifang Continent!

However, if he could have 10 billion people's energy, it is estimated that he would have unified the Quartet Continent long ago......

Su Yu chose to exchange [Liangyi Dust Array-Weakened Version], and as the exchange was completed, the system's prompt sounded.

Please select the location where the formation will be placed. 】

With the system prompt, the system screen in front of Su Yu suddenly shrank, and it became Su Yu's territory, including Qinjian City and the Great Demon County.

Su Yu clicked on the direction where the Yanhuang Imperial Capital was located, and the system automatically zoomed in on the territory map to get a bird's-eye view of the imperial capital, and Su Yu clicked again and chose to place the formation in the palace.

As wisps of light drifted from the system screen, the light began to slowly sink into the ground under Su Yu's feet.

An hour later, the system beeps.

[Formation placement completed!]

Su Yu smiled and began to communicate the formation in his heart, checking the power of this formation.

I have to say that although this is a weakened version of the ancient array, the power really doesn't have to be said, the average Legendary Realm master enters the formation, Su Yu only needs to think about it to kill!

Just as Su Yule was fiddling with the formation, a guard's panicked voice came from outside the imperial study.

"Emperor, it's no good! someone forcibly broke into the palace!"

(End of chapter)