Erwin's gaze returned to Han Ji, but he was disappointed again, because the blankness on Han Ji's face once again showed that her knowledge of gunpowder purification was no different from his, and she didn't know anything about it.

Even so, Erwin still had a calm face, "And what is the steam engine technology?" ”

As soon as Lu Yiyi wanted to say something, she heard hurried footsteps outside the room, and there was only one person who dared to be so angry in front of Ye Tian, Zhou Qian came.

"Steam engine, let's let our chief engineer learn more about it, she's here." Lu Yiyi smiled faintly.

As soon as Lu Yiyi's voice fell, there was a "bang", and the door was vigorously pushed open.

"Xiao Ye, what's the matter, didn't I tell you that I'm busy, don't call me for trivial things" Before the figure could be seen, Zhou Qian's voice came.

Ye Tian only felt a pain in his brain, eldest sister, can you take care of the influence, but my current identity is still a god son, is it appropriate for Xiao Ye to be so affectionately called.

A little helplessly gave Lu Yiyi a look, Ye Tian began to fall into a fugue state again, and continued to pretend to be a big-tailed wolf.

After receiving the hint, Lu Yiyi slowly walked in front of Zhou Qian, muttering something to Zhou Qian, only to hear the latter frown slightly.

After a while, Zhou Qian stepped forward, frowned and said, "Do you want a steam engine, and tell me what functions you want." ”

Zhou Qian's age is not very old, only one year older than Ye Tian, otherwise she would not call the other party Xiao Ye unceremoniously, but before entering the train, she has always been a master of technology, and all kinds of incurable diseases need her to solve, so that the aura on her body is getting bigger and bigger, this aura has nothing to do with strength, it is more of a kind of self-confidence, a fearless self-confidence in everything.

However, Zhou Qian's question made the three people on the other side stunned, what is the steam engine, they haven't figured it out yet, and now they have to say their own requirements?

After looking at each other for a long time, as the only one of the three who knew technology, Han Ji stood up hesitantly, and said stubbornly: "Can that steam engine help us increase the speed of the march, such as reducing the burden on the war horse." ”

Hearing this, Zhou Qian's brows furrowed even more, what do you think of the steam engine, and said in an unhappy tone: "Of course you can, but the steam locomotive can't reach the speed of the war horse running at full strength." ”

Hearing that the speed was not very fast, the three of them were a little disappointed on their faces, but before they could say anything, they heard Zhou Qian continue: "Although the speed is a little slower, as long as the fuel is sufficient, you can keep running, and the sustaining ability is far beyond that of the war horse, and the main function of the steam engine is not to reduce the burden of the war horse." ”

It turned out that he had misunderstood, Han Ji said secretly, and then humbly asked for advice, "What is the principle of the steam engine?" “

The technological level of this world has basically reached the level of steam civilization, but this is for super-large human countries such as the Marais Empire, on the closed island of Parania, the level of science and technology is still relatively backward, and steamships and hot air balloons cannot be manufactured.

"Principle, it's the conversion of heat energy into kinetic energy, just like boiling water can lift the lid of a kettle." Zhou Qian explained simply.

Han Ji froze, the heat in the boiling kettle could indeed lift the lid of the kettle, but if it reached the speed of making the machine travel at the speed of a war horse, how big would it be.

"But..."Han Ji still wanted to express his doubts, but was interrupted by Zhou Qian.

"It's nothing, you just need to know that the steam engine can do this, what's the problem."

Feeling the powerful aura on the other party, Han Ji only felt that he was like facing those strict teachers when he was a child, and he couldn't help but tremble in his heart.

Not only that, the admiration in her heart suddenly appeared, and the confident and domineering appearance of the other party was not the state she had been pursuing, and between just a few words, all beings surrendered.

Erwin saw the cautious Han Ji, and sighed in his heart, it was really a wrong choice to bring Han Ji by himself, he didn't help at all, and now that he looks like that, he has to pull them back.

However, although Erwin is not aware of the technology proposed by the other party, he still has a lot of experience in cooperation or negotiation.

His Royal Highness the Divine Son used his strength to oppress them at the beginning, and now he has put forward various conditions clearly, but the other party has not yet raised the price.

"Well, I don't know what His Highness the Divine Son needs to do with the Survey Corps?" Erwin said lightly, his face was light, and he was not stage frightened at all.

Ye Tian also retreated from the state of fugue, looked at Erwin lightly, and said, "It's very simple, you only need to be stationed in the Higanshina District for half a year, or you can also be given three months to repair, and then return to the Higanshina District again after three months." ”

Erwin's face was strange, let him be thoughtful and resourceful, but he never imagined that the other party would propose such a cooperation, half a year, where to repair is not repair, although the investigation corps will bring a little impact when it is outside for a long time, but I am afraid that those gendarmerie teams in the royal city are not happy to see the investigation corps have been wandering around the royal city.

"Why?" Erwin couldn't help but ask.

"Soon you will find out, and as a basis for cooperation, you can take this woman with you." As he spoke, Ye Tian casually pointed at Engineer Zhou.

Erwin looked blankly at his friend Levi, who had the same expression as him, and he had maintained this state since he came out of the Chamber of Commerce.

Before entering the Chamber of Commerce, he was full of doubts, but after he came out, his doubts did not decrease, but increased, and the number of people increased.

Two men and one woman went in, and when they came out, two more men and one woman were added.

What are the names of the two men, the sturdy one seems to be called Zhao Yuanguo, the thin one is called Yin Pingxiong, and of course, the woman named Zhou Qian who has been pestered by Han Ji.

Until now, he has been a little confused, how did he agree to the other party's cooperation in a daze, although this cooperation can be said to be the other party's help.

"Levi, what do you think of this collaboration?" Erwin asked.

After a moment of silence, Levi's grim face showed a complicated look, "That Zhao Yuanguo's strength is very strong, I am not an opponent, even if I have three-dimensional mobile equipment, I am afraid I can't beat the other party." ”

Is this what I asked, Erwin was silent for a moment, "Is the other party's strength really that strong, and what is the origin of that god son His Highness, there are so many strange people under his command." ”

"I don't know, and I'm afraid that the strength of His Royal Highness the Divine Son will not be able to resist ten Zhao Yuanguo." Levi said with some confusion.

Seeing his friend's performance, Erwin was completely speechless, why are they like this one by one, Han Ji has become that Zhou Qian's little fan sister, and now it seems that she can't stick to the other party, and this Levi seems to be overwhelmed by the so-called His Royal Highness the Divine Son, if he knew this, it would be better to face it alone.

Ye Tian threw Zhou Qian out, on the one hand, he was worried when he saw the other party, and he was unwilling to contact each other every day, but the most important thing was to prepare for the giant siege in half a year, although he was a little reluctant to admit it, but Zhou Qian's ability was very strong, more than a dozen titles were not taken for nothing, and Zhou Da Engineer was not called in vain, and the cooperation between the reincarnation team and the survey corps, the key person was still on Zhou Qian.

The technical support for the Survey Corps is mainly done by Zhou Qian, Ye Tian is a scumbag, he is good at fooling him, Lu Yiyi is studying psychology, and he can't give psychological counseling to the soldiers of the Survey Corps all day long, as for Zhong Tianming, they can't do it.

However, although it was said that Zhou Qian was thrown out casually, Ye Tian didn't want her to be harmed, Zhao Yuanguo and Yin Pingxiong were responsible for protecting Zhou Qian's safety, one of them could resist, and the other could fly away with Zhou Qian in an emergency, and no one could hurt Zhou Qian.

Zhou Qian is a little unhappy about the change of research location, she is the kind of real technical talent, she doesn't care about interpersonal communication, she cares about her own research, things like steam engines are not difficult for her, she doesn't want to waste time on this at all, at present, she is most concerned about the research of giants, and she doesn't want to leave the Reincarnation Chamber of Commerce at all.

It's just that under Lu Yiyi's persuasion and Erwin's assurance, she came out a little unwillingly, as long as there are materials, where to study is not research.

Among the six people, the most excited is Han Ji, she was conquered in a short period of time, and was impressed by Zhou Qian's profound knowledge, the other party is too powerful, the other party seems to be able to see through everything, and some of the questions she has been asking are like children's superficial cognition of the world in the eyes of the other party.

Erwin, who was full of worries, walked slowly on the street, the questions in his mind came up one after another, and he only felt that his head was extremely big, but slowly he found that the people on the street were running to one place, and they were still shouting something in their mouths while running, and strange thoughts appeared more and more in his heart, he had received enough surprises today, could there be anything else to happen?

After glancing at Levi, the two walked briskly, following closely in the footsteps of the people, and finally they came to the northernmost part of the Higanshina district, where the Wall of Prayer was located, to be exact.

"Jihad"

Erwin looked at the characters emerging from the wall of prayer with a strange expression.

The characters of holy war appeared on the originally smooth wall of prayer, and when the characters appeared, there were still many believers praying under the wall, obviously it could not be anyone's hands and feet, only their beloved Son of God could make this change in the wall of prayer.

"Holy War, why did His Highness the Son of God give such instructions" The believers of the Murky Sect kept muttering under the wall of prayer, all of them wondering about the Son of God's holy will.

In the midst of the noise, a tall and thin priest stepped out from under the wall of prayer.

Father Nick had already received instructions from the Son of God, told him what was coming, and asked him to act as his spokesman to explain to the believers the reasons for the holy war.

After waving his hand and signaling the believers to be quiet, Father Nick first praised the greatness of the goddess and His Royal Highness the Son of God, and then said, "Believers, don't panic, the changes that have taken place in the wall of prayer are the work of the divine power of the Son of God. ”

Then he continued: "In the long river of time, there is a catastrophe of destruction coming under His Highness Shenzi, this calamity is a catastrophe for the wall religion and for mankind, and the divine power of the Son of God can only delay the arrival of this danger. ”

Hearing Father Nick's final cry, the minds of the believers were completely moved by what His Highness the Son of God had done, and began to shout in unison.

"Can't"

"Can't"

After half a year, Erwin seemed to understand the purpose of the so-called Divine Highness's cooperation with the Survey Corps.