Lu En flipped through the book, which contained some technology.

That's right, it's technology, although it doesn't say the principle, but it expounds some basic operating concepts and model diagrams, which can barely be regarded as a leak, but for the vast majority of people, the existence of this book is a book from heaven, and 99.9% of people can't understand what is written in it, and it can't be said to be a leak at all.

And those who can understand it, and they can understand that these things do not allow people to directly control a certain technology, but they are enough to make people understand how the system works and what kind of effect it can produce.

In other words, it's about understanding the value.

Lu En's face was solemn, and after a cursory reading, he didn't try to reverse the technology, he couldn't do it, he was just a doctor of engineering, he really didn't understand fluid mechanics, he had to learn oil or pneumatics to dabble, so most of the time he couldn't do it, he had to be a real genius, and he was qualified to do this, such as Daedalus.

Lu En couldn't do it anyway.

It is precisely because of this that he is so serious, in this world, there are people who can conduct this level of research with the help of magic, these celestial apostles...... Is it true that research began after the collapse of the Celestial Realm? How long has it been?! Pneumatics can only make such progress after a hundred years of development, how many years has it been since the collapse of the celestial realm?

Put down the book and give it back to Yurahir.

The celestial apostle looked at Lu En with envy, because she could perceive it, and Lu En could understand it.

I really envy these people who can understand, she also wants to be such a person, even if it is the lowest level of apprenticeship, she can't do anything, she can only fight, but ...... If she can understand and understand, she is very satisfied, because it means that she has embarked on the path of truth.

"Very good...... Are these your achievements? Lu En asked.

"Yes." Yurahir didn't say much, didn't show off his appearance, and looked at Lu En with two eyes, waiting for his answer.

"Mind going out for a walk with me?" Lu En stood up.

"I don't mind, but Lord Demon King, don't you mind walking with me and being seen by others? I'm lowly and controversial......," Jurahir said, standing up as he spoke.

Lu En saw through it but didn't say anything, and walked out of the room with Yurahir.

Along the way, Lu En greeted the others, and when they heard Lu En's voice, they all raised their heads happily in response, but when they looked up, they saw Yurahir, and their expressions instantly became subtle.

Most of the people here are monster hybrids from Larante, and even if they aren't, most of the others are orcs, and they have all heard of Yurahir, especially when Yurahir was forced to provide supplies to the dungeon.

They all knew what this woman was, and although they didn't say anything when they saw this, they gave Lu En's eyes one after another, as if they wanted to remind him.

But Lu En just smiled, said hello all the way, and then walked towards the edge of the settlement.

Halfway through the journey, on the way I bumped into Nana who was busy running around, this little girl is now because she can fly, and she can sneak from the shadow world, so her main responsibility has become to transmit information, the camp is not big, and it looks like a radius of four or five miles, but it still takes ten minutes to run, with her, a word in the east, it can be transmitted to the west in less than ten seconds, which greatly facilitates communication, and in addition to communication, you can also help bring some supplies, commonly known as running errands.

However, in the process of running errands, she suddenly saw Lu En, and as in the past, she immediately braked, flapping a pair of small bat wings, and carrying a large bag of things in both hands, which looked like the tools needed by craftsmen.

"Sir!" The little girl shouted sweetly, and then came up to say hello.

It's just that before she arrived, her expression suddenly became vigilant, and she looked at Yurahir beside Lu En.

"Sir...... What is she? She didn't say what she said later, but the implication was obvious, why did she appear here? She deserves it too? I'm afraid there's some conspiracy, right?

"It's nothing, you can do things, by the way, hard work, give you some rewards." Lu En raised her hand and flicked a piece of candy over, Nana raised her head to aim, and then swallowed it with a whimper, but there was still hostility in her eyes.

Yurahir's attack almost killed her, but the king said so...... I still have to tell Bai first, she is smarter.

Carrying a large bag of tools, Nana quickly flapped her wings and flew away.

"Look...... Staying with me may cause criticism and affect their loyalty in the end, and you may have made the wrong choice this time, my lord. Jurahir didn't show anything, just smiled and said to Lu En.

"Don't worry, it's not that serious, your book is worth far more than that, let's move on." Lu En shook his head, didn't say anything, and continued to walk towards the outskirts of the settlement with Yurahir.

It still attracted a lot of attention along the way, but no one came forward to say anything.

It wasn't until the newly built defenses that Lu En stopped.

"You can take a look and guess what's used here?" Lu En crouched down and pointed to the ones that had already been built, and then to some of the cement kilns that were being mixed or fired.

It is said that it is a kiln, but in fact, it is just a transformation of an earthen blast furnace, which can barely be used, and it is very convenient to burn lime or something.

There were some monster half-blood craftsmen working on it right now, but Lu and Yurahir walked silently, and they were so engrossed that they didn't notice that they were so busy with the dingdong of the sledgehammer and the grinding and firing clinker that they didn't notice.

When Yurahir heard this, he walked over without hesitation, to watch the production process, the raw materials, and try the finished product, touch the cement that has not yet dried, and then knock on the cement blocks that have already dried.

This time, someone found her.

Almost all of the craftsmen raised their heads and glared at Yurahir when they spotted her.

These craftsmen are all from the slums of Larante, and many of them have been cleaned up by Jurahir, so of course they won't have a good face for her! Some people directly put down the work in their hands and walked towards this side with angry faces.

"Hey! Slut, we've all run here, and you still won't let us go? Is it true that we are muddy!? "A strong lizardman man walked over, he was in charge of crushing the limestone, and his body was covered in dust, but when he saw Yurahir, he didn't hesitate to put down his hammer and walked over!

Behind him, there were also a dozen or so strong craftsmen, all with knotted muscles, their bodies dirty and smelling of sweat because of workmanship, and they surrounded Yurahir in the middle.

Lu En covered his eyes, this scene was a bit spicy, and he couldn't help but want to be crooked, although he actually knew that nothing would happen at all.

No matter how weak Yurahir looks, it is also level 5, which is not comparable to these craftsmen with level 1 per capita.

Sure enough, when the Heavenly Apostle saw so many people coming, he couldn't help but shrink his body, pinched the corners of his clothes, and the corners of his eyes were slightly red, which was pitiful, and people couldn't help but reverie too much.

It's a pity that such a delicate person is surrounded by more than a dozen muscular men, and the end will not be very good, as for the reverie...... It's also this, such a beauty, what will happen to you later? It just makes people's heads hot, and they can't wait to get involved.

But from the perspective of the person concerned, these craftsmen suddenly felt ...... It's a bit of a mess.

Is it really good to treat Yurahir like this? Obviously, she was the weak party first, and the previous things have passed, and now it is impossible for him to interfere with us......

Why don't you just ...... Put her alone?

The craftsmen looked at each other, and it was clear that everyone had thought of this, and they hesitated, not knowing what to do.

And Yurahir saw that they hesitated, as if he felt something, and his originally desperate eyes suddenly had more hope, raised his head slightly, and looked at them with crystal eyes, looking like he wanted to speak but didn't dare to say it.

At this moment, the craftsmen felt that they should not teach her a lesson, she was so pitiful...... She used to be powerful in Larante, but now she has fallen to this point, and she has been punished as she deserves......

"Forget it...... Let's go. The first one to stand down was the strong lizardman who waved his hand and turned his head to return to his station.

As soon as this sign appeared, Lu En began to clap his hands.

The snapping sound caught everyone's attention.

"Sir! What are you doing here? ”

"Sir...... Why did you come here with her? ”

"What is this?"

The craftsmen look at each other, you look at me, I look at you, gossiping, a little confused about the current situation.

After Lu En finished clapping his hands, he drew a string of runes with his hands, and with a tap, the magic power fluctuated and unfolded, making the pity in the hearts of those craftsmen disappear without a trace.

This is to calm the mind, this spell can calm agitated creatures, or eliminate some of the less significant psychic effects, the main effect is to suppress the morale of the enemy, neutralize the legendary generals or senior leader skill holders have their morale-boosting abilities or berserk abilities, and here Lu En uses them to clear the psychic effects that Yurahir has on them.

"Don't be fooled, that's persuasion5, use body language or words to get you to change your attitude." Lu En's faint voice came.

As soon as he said this, the wrath of the craftsmen was ignited, but as soon as the anger was ignited, they immediately calmed down again, because the calming of their minds lasted quite long, and they were able to continue to maintain their calm.

The big tower walked up, he had been mixed in with the crowd before, but at this time he came over as a representative of the craftsmen: "Sir, what is this for?" Why is Jurahir here, and even using skills on us! ”

His tone was indignant, and he used skills against them, which could almost be considered a declaration of war!

"Don't worry, you go and do your own business first, I have a business to discuss with her." Lu En explained to the craftsmen.

However, this sentence could not convince the craftsmen, who were still waiting for Lu En's other words.

Lu En showed a helpless expression: "Okay, hurry up and go back to do things!" People can open up business for us, can you rough guys? You have to sell so many things you make, or you will pile up at home and eat ashes? Don't block it here, the clinker is going to burn over there! Don't you want to work! ”

The craftsmen who originally wanted to ask the teacher for their guilt heard the word Shanglu and stopped talking for a while.

Yes, trade routes, this is a problem that everyone is discussing now, they have no worries about food and clothing here, Lu En also slaughtered all the brute beasts around, and the cement defense line has also been built, which means that the security problem is gone, if they don't pursue development, they can even live here for a lifetime.

But are they willing to live in the wilderness of the countryside for the rest of their lives? It must be unwilling, so if you want to contact the outside world, you need a trade route, you need a merchant to come and open up a path, and you even have to build a road in the back.

When the roads are not enough, the airship station must be repaired! Establish a permanent air wind ring, use magic to permanently connect the climates of the two places, and the wind in the sky will continue day and night, and airships can quickly travel in it.

If it develops to the same level as the imperial capital, then the airship is not enough, the roads stretch for thousands of miles, all roads can lead to the imperial capital, the sky is the gathering place of the airship, almost all the airships ride on the air wind ring have to pass through the imperial capital, this transportation hub, and also use portals, a large number of permanent portals! It leads to all directions, so as to meet the huge flow of people in the imperial capital.

Such a thing could not be done by craftsmen, it required merchants, and only merchants and nobles could pay for it.

There are no stupid people who can become professionals, and these craftsmen quickly thought of this, and no longer looked for trouble, but snorted coldly one by one, and returned to their posts unhappy.

Before leaving one by one, I had to warn Yurahir: "Mr. said that you are still useful, so I won't bother with you for the time being!" If you dare to yin us as before, we are not polite to you! ”

"That's it!"

When the craftsmen returned to their posts, the surrounding began to table tennis again, squeaky and squeak began to process cement, and now the demand for cement is still very large, because it is also used to build houses, Lu En said, everyone can live in this kind of sturdy and warm house!

Yurahir didn't do anything more with the craftsmen, and when they returned, she began to observe the making of cement, as Lu En had said.

It's nothing if you don't look at it, and the more she looks at it, the more frightened she becomes, this material ...... It may be possible to greatly reduce the cost of building a house!

Can't you build a tall building now? In fact, it can be made, as long as magic is used, any kind of unbelievable building can be built, but it requires a cost, requires a lot of magic materials, and a bunch of mages carefully carved to solidify the spell, the cost is quite high.

She weighed it, this thing is much lighter than stone, it is no problem to build those three- or four-story houses, and it is strong and durable, and the cost is also very low, only lime and clay plus slag are fired, maybe a bit wasted manpower, but manpower is this thing...... Is it worth the money?

This is a world of slavery!

Business opportunities! The Apostles of the Celestial Realm were keenly aware of this!