I actually knocked King Yan and my CP!

Throughout July, the genus Yan swept the surrounding cities.

On July [-]th, Juyongguan was broken.

On July [-]th, Po Huai came to kill Song Zhong.

On July [-]th, Yongping returned.

On July 27, the Songting Pass was calculated in reverse, resulting in the prison guard Bu Wan.

So far, all threats around Beiping have been eliminated, and King Yan has firmly controlled the area headed by Beiping.

He Yuxuan listened to the good news that was pouring in, and packed up the old books that he had already prepared.

These days, besides taking care of Zhu Gaochi's body, He Yuxuan was also gradually brought into that group of staff by Zhu Gaochi.

There is nothing wrong with Zhu Gaochi's thinking. After all, entering the court as an official is the right way. If you can't get an official through the imperial examination, then going to the court as an aide is also a way out.

He Yuxuan did not refute, but let him speak, but after a few failures, His Royal Highness will see clearly what kind of character he is.

He is really just a doctor! !

At first some people were indeed dissatisfied with He Yuxuan's appearance, but as time went on, He Yuxuan got along well with them. He Yuxuan had no obsession with success and fame, and there was no conflict with them on this point.They know each other well, and He Yuxuan is a familiar face.

He Yuxuan also made a friend Xu Weichen.

Xu Weichen has a gentle temper, speaks slowly, and is proficient in spells. He can be regarded as the accountant of the entire Prince Yan Mansion.

With people who are familiar and able to speak, it is not difficult to integrate.

As time passed, with He Yuxuan's integration, he probably knew the reason why Zhu Gaoxu angered him.After the relationship between He Yuxuan and the staff gradually became closer, Xu Weichen once mentioned it in a private chat with him.

It was mentioned casually, and it was also deliberately pointed out.

"Zhang Bing's crime is unforgivable, and the correspondence between him and Zhang Shaochen has also been verified. But when Zhang Qiu was in charge, he met Zhang Shaochen before he was executed. Since then, he seems to be dissatisfied with you." Xu Weichen was persuasive, hoping that He Yuxuan would not fight Zhang Qiu.

Zhang Qiu has a bit of a stubborn temper, but he has been with King Yan for many years, there is no credit but hard work, and Xu Weichen doesn't want his new friend to get caught up in it without knowing it.

He Yuxuan was full of helplessness for this sudden malice.

His original guess was correct, Zhang Qiu really aimed at him.

Zhang Qiu was close to Zhu Gaoxu's staff, He Yuxuan already knew this.

But Zhang Shaochen and Zhang Bing are relatives of three generations, and Zhang Qiu and Zhang Shaochen are also distant relatives, which He Yuxuan did not expect at all.

A dying person speaks kindly.

However, He Yuxuan knew what Zhang Shaochen would say without even thinking about it.If there is really a close relationship, it is normal for Zhang Qiu to feel dissatisfied with him.

Zhu Gaoxu originally had resentment towards He Yuxuan, and with the addition of Zhang Qiu, the superimposed strength is really powerful.

He Yuxuan couldn't help shaking his head.

In this way, Zhang Qiu and Zhang Bing are also related.But he is still going out with King Yan, so he shouldn't get involved.

But what kind of abilities does this Shaochen have? There are quite a few relatives.

Zhu Gaoxu already had some opinions on He Yuxuan, plus Zhang Qiu... this is simply child's play!

He Yuxuan was thinking, fiddling with the tumbler between his fingers casually.

This tumbler looks like a lucky baby, with two blushes on his face, and a small belly covered by a bright red coat, swaying back and forth with He Yuxuan's prodding.

He rubbed his fingertips. If he meets several enemies with the same surname in the future, it is difficult for He Yuxuan to study carefully whether they are related, maybe they are still the same family from beginning to end.

This matter is a mess, and it is not easy to trace the source.After all, there is no need to have a reason to hate someone, as it is possible for two people to hate each other after meeting for the first time.

He Yuxuan sighed, now that Zhu Gaoxu is on the battlefield with King Yan, it is said that he has performed well on the battlefield, and has even made great achievements on the battlefield. Such a person is hostile to him, He Yuxuan can only do his best to keep him from being in power, except that he feels innocent .

But when Zhu Gaoxu can get in touch with He Yuxuan again, at least after this battle is over, there are still a few years to buffer.

When He Yuxuan helped Zhu Gaochi, he was actually helping himself.

This difficult matter could not be resolved for the time being, so He Yuxuan put it aside after thinking about it for a while. In fact, counting the second half of July, he was quite leisurely.

On Liu Sheng's side, He Yuxuan has already received his reply, and the situation has gradually returned to the right track.

"My lord, why are you lying on your stomach?" When Brother Ying came in, he was watching Mr. He lying on the window sill bored, poking his fingertips at a tumbler he found from nowhere. The lining is particularly white and delicate.

Brother Ying couldn't help laughing, Master He looked really dazed and bored.

He Yuxuan said slowly, "I'm absorbing the essence of the sun and the moon."

The meager sunlight fell on He Yuxuan's face, softening his brows and eyes, even his smiling face was a little softer.

Brother Ying shook his head: "Then what kind of monster are you?"

He Yuxuan said slowly: "Looking at my behavior these days, it seems that I should be a slacker who has become a genius."

Following his statement, He Yuxuan poked the tumbler rather childishly.

Fu Wa's belly is round and round, which happens to be where He Yuxuan's fingertips often visit.

Brother Ying burst out laughing, and while giggling, he put the fruit plate he brought on the small table beside He Yuxuan, "If you feel bored, why don't you go for a walk?"

Today, Shizi sent someone to bring honeydew melons, Brother Ying looked at the sun, so he prepared some for He Yuxuan first.

He Yuxuan stretched his waist, "Do you think it's possible?" If you want him to go out, it's better to stay here.

He Yuxuan took a piece of honeydew melon from the fork casually, "What's wrong with you?" He looked at Brother Ying's sweaty face, he must have run for a while.

July has passed, and early August is the time when autumn is crisp and clear. It is not an easy matter to sweat like this.

Brother Ying raised his hand to wipe his sweat, "When I came here just now, I helped the kitchen staff run errands." The aunt in the kitchen in the front yard was very kind to Brother Ying, and always made small cooking for him.

He Yuxuan didn't restrict Brother Ying's actions at all, he could do whatever he wanted, and Brother Ying would occasionally help out when he was free.

He Yuxuan pursed his lips, "Has it affected you recently?"

Brother Ying understood the meaning of He Yuxuan's question, and looked very serious: "Not at all. Although the war did have an impact, this is Beiping, and the King of Yan will protect this place." He said reverently.

He Yuxuan couldn't help shaking his head, King Yan was human after all, so it was impossible for him to protect this place with his mind.

Looking at Beiping now, it is quiet and peaceful, and there is no big problem as the rear of King Yan, but if the imperial court is desperate and sends people to sneak into the rear, it will be a difficult task.

He Yuxuan frowned slightly. His Royal Highness needed to be reminded of this matter.

However, the army of the imperial court has not yet arrived, so they can feel at ease.

Zhu Gaochi grew up rapidly in this short period of time. At the beginning, he didn't know what to ask about some things, and he didn't know how to make a decision. Later, he gradually began to form his own opinions, and he was decisive in his political opinions. Nearly a month's time.

He Yuxuan was quite moved when he saw it.

There are not a few people who have the same opinion as He Yuxuan. Maybe they will not stand in line, but they will gradually influence King Yan's opinion in a subtle way.

Zhu Di is indeed indifferent, but he is also a person who pays attention to the overall situation. As long as there is no mistake in the general situation and Zhu Gaochi can meet the requirements of King Yan, the rest of the matter will be much simpler.

Even though he thought so, He Yuxuan didn't have the slightest excitement to fight for power.

If he had a choice, of course he still hoped that everything would go well without any incidents.

After eating most of the honeydew melon, He Yuxuan got up and put away the lucky baby tumbler, then walked to the desk and took out the old book he had made.

After he put the old book in a ventilated place to dry, it was difficult to tell the authenticity from the fake. Even if He Yuxuan put two ancient books of the same level together, there was no big difference.

The content in this old book is only a detailed description of some content, and the deeper development falls on another manuscript written by He Yuxuan himself.

Two manuscripts, one of which was made into an old book with camouflaged handwriting; the other is a supplementary content.

He Yuxuan's preparations are almost done today, but when to present it to the prince is indeed a question.

Fingers brushed against the two manuscripts, He Yuxuan turned his head to think for a while, and put the manuscripts in his sleeves, and pushed the old books away.

"My lord, Eunuch Yuan Shu is here." Brother Ying came in.

Yuan Shu is the servant next to Shizi.

He Yuxuan was slightly taken aback, what is His Royal Highness looking for him for?

……

"Master He, please sit down." Zhu Gaoxu invited He Yuxuan over, looking very serious, not knowing what happened.

In addition to He Yuxuan, Xu Weichen and others had already taken their seats, and He Yuxuan was the last one, "I'm late, I kept the prince and everyone waiting for a long time." He Yuxuan cupped his hands and said.

Xu Weichen said with a smile: "The people who went were late."

He Yuxuan was slightly stunned, when he heard the staff sitting next to him say with a smile: "We suggested His Royal Highness to invite you here."

Although He Yuxuan has gradually become a staff-like existence, his job is still a doctor after all. He Yuxuan does not attend every meeting. Zhu Gaochi and He Yuxuan seem to have the same consensus, and it will not be so often.

What happened this time, and you still want to call him over?

Xu Weichen showed embarrassment, "Recently, according to the news from the battlefield, many of the nearby cities have been taken back. However, there are still casualties among the soldiers. I talked about this just now, and I thought that the current problem is that the soldiers are difficult to be healed in time. It is a problem that cannot be corrected in a short period of time no matter how much improvement is made. However, please come here to discuss whether it is possible..." As he spoke, he fell into a stagnation.

How can this medical skill be improved overnight?

The growth of herbs takes a slow time like agricultural crops, not to mention those precious medicinal materials, if it is really as simple as Xu Weichen said, then the previous difficulties are not a joke.

Xu Weichen was thinking about this, so he couldn't continue.

He Yuxuan showed embarrassment, "Master Xu has said about the difficulty just now, it is indeed this problem, and it cannot be solved overnight. Some wounded soldiers were not beyond treatment at the beginning, but because the war was delayed for too long, it was only after the end that I would Fang’s soldiers went to save them. But...if this is the case, can we train some medical soldiers?”

Zhu Gaochi's eyes brightened slightly, "What do you mean by this medical soldier?"

He Yuxuan said patiently: "Now the treatment of wounded soldiers is transported back one by one when the battlefield is cleaned up. If there is a group of medical soldiers with simple rescue capabilities, they will be responsible for transporting those wounded soldiers back during wartime. They Transporting and rescuing the wounded is the only thing I can do, and that might improve a lot.”

But this takes time to cultivate, and the second is that unless the king of Yan can allow the excess expenditure on the army, it will never be implemented.

Xu Weichen was surprised and said: "This is indeed an extra burden, but if it can reduce the number of wounded, the difference between the two phases will not be too much. It's just that it does take time to cultivate." With his endorsement, the feasibility is indeed Raised slightly.

He Yuxuan shook his head, "In addition to this, there are other problems. It takes a long time to train this group of medical soldiers, so it is too time-consuming..."

Following the conversation between He Yuxuan and Xu Weichen, other staff members also started discussions.Some agreed with He Yuxuan's point of view, while others thought it was unnecessary. When the discussion got heated, they even changed the topic and directly involved other conflicts.

The term medical soldiers is indeed new, but for these staff, it is difficult for them to intervene in military affairs after all.

King Yan himself is a brave general who is good at fighting. Although he has advisers in marching and fighting, most of the time, King Yan alone can control the whole battle.

Zhu Gaochi listened for a long time, and when the debate was getting into a stalemate, he patted the table with his chubby hand, but it was to attract everyone's attention, "Zixu's opinion is also acceptable, and I will give it to my father for consideration."

He Yuxuan bowed his body and accepted it.

This opinion was put forward by him. Zhu Gaochi meant that he wanted to write a detailed document and hand it to King Yan.

"This has been put aside in advance. Now that the father is fighting outside, Beiping must not slack off. If someone bypasses the father's rear and goes straight to Peiping, it will be a fierce battle. Everyone needs to be vigilant." Zhu Gaochi said lightly.

Now he is quite majestic, and he is no longer the novice who can be fooled wantonly.

He Yuxuan, Xu Weichen and others all said yes.

He Yuxuan was even more happy, Shizi's thoughts matched his, and he acted more decisively, which was enough to prove that Zhu Gaochi was indeed growing.

Zhu Gaochi doesn't convene his staff every day, he only recruits when something happens.

After the wounded soldier pressed the button in advance, he did not interrupt the subsequent discussion, but listened quietly.

When the discussion ended, He Yuxuan got up with Xu Weichen, and the manuscript slipped down his sleeve silently.

"What is this?" Zhu Gaochi bent down and picked up the dropped thing.

He Yuxuan looked back and found that it was his manuscript.

He reached out his hand to dig inside his sleeve, and sure enough, there was a small hole in his sleeve.He Yuxuan stared at the protruding fingers in a daze, the quality of the clothes was not very good.

Seeing He Yuxuan's embarrassment flashing by, Zhu Gaochi couldn't help laughing, "Zixu, here you are." He casually handed the manuscript to He Yuxuan.

He Yuxuan pushed back, "This was originally intended for the crown prince."

Zhu Gaochi was stunned, and looked down at the densely packed manuscript, "Is Zixu so diligent?" He sighed.

Listening to Zhu Gaochi's heartfelt emotion, He Yuxuan couldn't help laughing and said, "I'm not that lazy." He wanted to cover his face, to what degree of laziness did Zhu Gaochi form such a fixed impression? ?

Zhu Gaochi smiled and said nothing, as if the impression of the first meeting was too deep.

Not long after this conversation ended, He Yuxuan and Xu Weichen left side by side. As soon as they walked to the gallery, they watched Xu Weichen stretch his waist, "I'm really sleepy these days."

He Yuxuan knew that what they were most afraid of doing the accounts was making a mistake in the number, so Xu Weichen would check it carefully every once in a while, and this was the busiest time for them.

"The accounts are all correct?" He Yuxuan said slowly.

"That's natural." Xu Weichen narrowed his eyes, "Now is a critical moment, whoever dares to make trouble here, it doesn't matter if he cuts it off with a knife."

The implication is that similar things have happened in the past?

The gallery turned around, and the two walked side by side, which was very comfortable for a while, but the silence was quickly broken by a scream.

He Yuxuan and Xu Weichen looked at each other, then He Yuxuan strode forward, took a few steps around the garden and trotted over, and found a fainted servant on the gravel road in the backyard.

Xu Weichen followed closely behind, frowning at the scene, staring closely at the pale maid next to her, who was the one who screamed just now, "What's going on?"

The maid said tremblingly: "This is what the servant saw before coming here."

In front of Xu Weichen, He Yuxuan had already squatted down, felt his pulse carefully, shook his head after a long while, "He's dead."

It was because of his vigilance as a doctor just now that he rushed over in a big stride, but it was still too late.

The body was still warm, so the person who did it must be someone from the house.

Xu Weichen was taken aback for a moment, in broad daylight, someone actually died in Prince Yan's mansion?

During the short period of conversation between He Yuxuan and Xu Weichen, patrolling guards arrived soon.

After judging that this matter had nothing to do with He Yuxuan and the others, the leader of the guard politely asked them to stay away.

Xu Weichen was obedient, and quickly pulled He Yuxuan, who was still thinking, away.

If assassins were involved in this matter, it would be a catastrophe.No matter who is involved, it will cause a show.

"Could it be that someone sneaked in?" Xu Weichen was puzzled.

He Yuxuan frowned, and said in deliberation: "When I was feeling the pulse, I noticed a needle hole in his neck. This is not accidental."

There is no pulse after a person dies, and He Yuxuan can't judge whether the person died of poisoning in a short time, but this is undoubtedly a bad thing.

It can only be said that someone must have sneaked in, or was caught by the servant while doing something bad, and then killed the servant.

This is the greatest possibility!

After hearing He Yuxuan's words, Xu Weichen felt his hair stand on end, "This is Prince Yan's mansion, how can random people come in here?"

He Yuxuan shook his head, "There are people patrolling inside and outside the Palace of King Yan. How easy is it to sneak in? The most likely possibility is that they were originally from the Palace of King Yan."

Either they got in early, or they were lured into rebellion.

The most worrying person in this mansion should be His Royal Highness, but there are many people guarding Zhu Gaochi when he comes in and out, so there should be no major incidents for a while, but more precautions are needed.

Before people are caught, they need to be more careful.

This matter was only circulated in a small area. The next time He Yuxuan saw Zhu Gaochi, he learned from him that the entire palace had stepped up security, but he didn't tell the outside world, so he knew it.

— No one has been caught yet.

The frequency of patrols in Prince Yan's Mansion was much higher, and it was still very stable on weekdays. He Yuxuan followed the routine step by step, and would still meet with the little black house at night.

During this idle time, He Yuxuan lived very comfortably, even looking at the little black room, he didn't feel too uncomfortable.Leaning on the back of the chair and stretching his body, he lazily touched the book.

Turning to the first page, He Yuxuan intends to see what the subject matter is.

—— "On How to Succeed in Chasing That NPC"

He Yuxuan looked blank, and it was another word that he didn't know what it meant.

[...He Yuxuan has been working hard to draw cards, but he is naturally a non-sauce, and any attempt to smuggle into Europe has failed.Even the exclusive card pool of Ming Chengzu has never been able to draw the card he wanted, isn't it just a matter of 648?If one 648 still cannot end, then add another 648 is He Yuxuan's wise saying. 】

He Yuxuan frowned, what the hell is this.

Although a little confused, he insisted on reading.

[The most annoying thing about drawing cards is not that you can't draw the card you want, but that when you all crash, your co-workers get into the soul and directly draw the card you want the most... Africans have no human rights. 】

[The probability of drawing a card will tell the player why the flower is so popular! 】

He Yuxuan couldn't help thinking of the second item rewarded by the system before... that item happened to be related to luck, so it seemed to be a good item.

He Yuxuan squinted his eyes and read the whole novel, and only got a sigh. Sure enough, luck is the most fundamental thing.

But is there any significance to this novel today?

From the beginning to the end, He Yuxuan only remembered that drawing cards requires luck, and the phrase "Why are flowers so red".

Xiaoheiwu's writing is really hot sometimes... as time goes by, he becomes a very appreciative old reader.

With such thoughts, He Yuxuan fell into a deep sleep in the blink of an eye.

……

When He Yuxuan woke up the next day, he began to think about how to write the article for King Yan.

Zhu Gaochi handed over this matter to He Yuxuan, apart from the fact that he brought it up, it was also his intention to gain some sense of presence for Yuxuan in front of King Yan.

He Yuxuan deeply felt the kindness of the son, but he couldn't avoid paying attention to King Yan.

If it wasn't for him to propose this suggestion, He Yuxuan would also want to throw it away.

The biggest problem in the matter of medical soldiers is how to recruit these qualified people. It is not an easy task to study medicine. He Yuxuan is well aware of the difficulties after going through that kind of training.

Not only is the army lacking doctors, in fact, the entire Ming Dynasty lacks good doctors.

But almost everyone is eager to take the imperial examination, and the rest of them become doctors, some dawdle and some work hard, but this line of work also depends on talent.

The most important thing is that although they bear the responsibility of saving lives and healing the wounded, doctors have not received the respect they deserve, on the contrary they have been discriminated against.

All these have caused many difficulties, not to mention that there were at least teaching institutes in the previous dynasty, until the beginning of the Ming Dynasty, there was no possibility of such study.Unless the family can enter the hospital too.

If the medical soldiers have to put in the same effort as the scientific research, they will only become second-class people in the end, and even have to go to the battlefield... Although He Yuxuan is the one who made this suggestion, he thinks that it is still too difficult to implement.

Therefore, even though he learned about this possibility from colleagues, he felt it was not easy.

It would be great if there were medicines to treat trauma... He Yuxuan pondered, doctors prescribe medicines that need to be tailored to the case, but if there are medicines that can treat common conditions, at least the patients can survive the most difficult time and wait until the doctor comes to rescue.

With such a blind drug, the requirements for medical soldiers can be reduced from requiring them to know a lot of knowledge to just being able to use the drug in a timely manner to save lives.

How easy is it to create such a drug?

First, a prescription is needed, then a constant standard is needed, and then multiple attempts are needed.

He Yuxuan paced back and forth with his hands behind his back, thinking about the assurance of success. Among other things, at least a lot of attempts were needed in the early stage.

And once this suggestion is put forward, He Yuxuan is likely to be the person in charge, which is almost a bolt from the blue for him.

Why is this hand owed so much?

He Yuxuan frowned, while slandering himself, dipped the ink and picked up the pen, and continued to write along the already typed belly draft.

Xu Shi had thought about it a long time ago, but He Yuxuan immediately figured out the general content without blinking an eye, and then explained and proved it with more concise and easy-to-understand words.

When he stopped writing, He Yuxuan wrote a full ten pages.

He was massaging his right wrist and suddenly fell into inexplicable sadness.

There is an illusion that the leisurely days are gone forever.

After He Yuxuan waited for the ink on the article to dry, he put it in the envelope, and asked Brother Ying to go to the inner courtyard and give the things to Zhu Gaochi.

In the afternoon, the three of them left Peiping quickly with small packages on their backs.

……

It was already late at night when Zhu Gaochi returned to his yard.

His personal servant Yuan Shu changed his outer shirt and brought him hot tea, "Your Highness, you should rest first."

Yuan Shu looked at the hour, and it was already midnight.

Zhu Gaochi rubbed the center of his brows, and was about to agree, when he suddenly remembered the manuscript that was put away yesterday, and ordered Yuan Shu to find it out, "Let me take a look."

Yuan Shu found it, handed it to Zhu Gaochi, and couldn't help but said: "Master He has told you not to let you stay up all night."

Zhu Gaochi sneered, and squeezed his chubby hands. He also knew that he was in recuperation, and he couldn't do anything recklessly at the moment.

He has a good temper, and the servants who serve him know it.Sometimes when encountering such a thing, I dare to say a few words.

"Look again, I'll just read it for a while." Zhu Gaochi said with a smile, and then opened the manuscript Yuan Shu handed over.

Zhu Gaochi was very familiar with the handwriting on this manuscript, and a letter from He Yuxuan was included in the letter sent to the front line in the afternoon.

Of course Zhu Gaochi had read the content of that document, and He Yuxuan's handwriting was easy to read.But now that he thinks about the content of that article again, Zhu Gaochi is a little excited. If it can be done, it will be a great thing!

Zhu Gaochi pulled his mind back and read a few pages with hot tea.

Gradually lost in thought, he didn't even drink much tea.

Yuan Shu watched anxiously from the side, but he also knew when to speak and when not to speak.

The current situation is the time that should not be disturbed.

Yuan Shu had no choice but to go outside and order the waiter to prepare the supper and make tea again, and then replaced the teacup in Zhu Gaochi's hand with hot tea.

Time passed bit by bit, and in a blink of an eye, Zhu Gaochi buried his head in his eyes for half an hour, his posture remained motionless.

If Yuan Shu hadn't seen His Royal Highness occasionally flipping through the manuscript, he would have even worried that Zhu Gaochi had fallen asleep.

"This is really a..."

Zhu Gaochi stood up suddenly, walked back and forth in the room excitedly, his face flushed, as if he had seen something great.

"Zixu is really a blockbuster, and this matter is hard to come by. But if it happens, it must be a great thing!"

Zhu Gaochi looked at the scattered manuscripts, and the surging feeling in his heart almost gushed out. He endured and endured, and just suppressed the feeling of excitement.

Looking at Zhu Gaochi's appearance, Yuan Shu suddenly remembered what happened during the day, and said in a low voice: "Master He sent someone to send over an old book earlier, I wonder if His Royal Highness would like to read it?"

"Take it quickly." Zhu Gaochi waved his hand.

Yuan Shu hurriedly searched for it, and soon found the crumpled old book.

Zhu Gaochi flipped through it a few times, the book was so old that it almost fell off, and the blurred handwriting was a little unclear, but every single word was indeed what was mentioned in He Yuxuan's manuscript.

With this old book as the core, He Yuxuan's manuscript constructs a new possibility.

……

Iron ore mining in the Ming Dynasty was never a fixed number, but was only mined according to the needs of the court, and stopped when it was not needed.

Ming Tai Zu once said: "The benefits do not lie in the officials, but in the people. If the people benefit from it, the source of benefits will flow and benefit the officials."

From these words, it can be seen that Mingtai Zu did not hold a supportive attitude towards mining iron ore.

While restricting the mining of official mines, private mining was allowed in the 28th year of Hongwu.At the same time, the iron tax was so ostentatious that it almost ceased to be a major part of taxation.

And the iron-making industry gradually fell into a predicament.

Throughout the ages, charcoal has been used to make iron, but the consequence of gradual large-scale mining was severe tree felling. It was not until the late Song Dynasty that coal was gradually used to make steel, but this actually contained a defect.

In the process of iron and steel making, if coal is used to ignite the fire, the cast iron produced will be brittle. Whether it is used for civilian or military purposes, the effect is not as good as charcoal iron smelting.

However, the forest industry is drying up day by day, Zhu Gaochi is also very aware of this, there is almost no room for maneuver.

Another possibility proposed in this old book is coal washing.

Coal washing can separate the impurities in the mined raw coal, which can minimize the influence of coal on ironmaking and greatly improve the quality of ironmaking!

And this item, this is just a small part of the old book!

Accompanied by He Yuxuan's manuscript, if it can really come to fruition, it will really be a happy thing.

Especially helpful in today's situation!

How could Zhu Gaochi not be happy about this?

Zhu Gaochi made up his mind, turned back and walked to the desk, quickly dipped in ink and wrote a new letter, and then shouted: "The successor comes in, hurry up and give these three things to the father!"

This matter is too sensitive, as He Yuxuan's manuscript said, it still needs to go through King Yan before it can be implemented.

Zhu Gaochi, who was overjoyed, naturally ignored He Yuxuan's ardent hopes in the manuscript, and only hoped that His Royal Highness could erase his name, and he didn't want to be greedy for credit.

Zhu Gaochi shook his head, how could he not say this?

He Yuxuan who was dreaming in the middle of the night shivered, the original sweet dream turned into a nightmare for some reason, and he was so cold that he rolled into the bedding more and more.

……

The entire July is the time when King Yan's army willfully scramble for the city.

The only pity is that even though it had been planned long ago, Datong was still not won.After Chen Zhi retreated to Datong, he directly cut off the possibility of Dai Wang wanting to raise troops to respond to Yan Wang.

It is now the beginning of August, and the imperial team has not yet arrived, but the news has already spread to King Yan's army.

Emperor Jianwen appointed Geng Bingwen, Marquis of Changxing, as the general. At the same time, Li Jian, the son-in-law captain, was the deputy general on the left, and Ning Zhong was the deputy general on the right.

Under the command of King Yan, there are now tens of thousands of soldiers and horses.It is naturally inferior to the soldiers and horses of the imperial court, and the most important thing is that the imperial court still has a certain degree of control over the surrounding vassal kings. If the imperial court orders the vassal kings to participate in it, it will be a double attack.

Dao Yan had expected it a long time ago, he frequently asked people to contact King Ning, and spent a lot of money to dredge the generals in King Ning's territories.Under the premise of getting the acquiescence of King Yan, this is not difficult.

It is not necessary for King Ning's soldiers to sacrifice their lives for righteousness, but it is enough to help King Ning when he wavers.

The big tent of the Yan army.

There is a huge map hanging in the big tent, with locations marked large and small, and important locations are circled with red circles.

There was a faint smell of blood in the spacious tent, and the guards at the door were extremely serious, except for those who were close to King Yan, no one could enter.

Sanbao came over with hot water, "My lord, it's time to change the medicine."

Zhu Di looked indifferent, leaning on the soft couch, closing his eyes and wondering what he was thinking.Wen Yan waved his hand lightly, which meant that it was unnecessary.

Sanbao's eyes fell on Zhu Di's arm, and he suppressed a sigh.

King Yan has always been fond of going out to fight in person, hiding in the back of the tent is not what he wants, so he often takes the lead and even personally cuts off the rear.Even the people around him, such as Sanbao, often wear armor and hold knives, and go to battle with him.

No one is a coward who can follow Yan Wang's side.

King Yan is so brave, it is normal for him to be injured occasionally.

What troubled Sanbao was that this master didn't care about the wound at all, and it would be difficult to change the medicine occasionally.

Fortunately, once on the battlefield, it is no longer difficult for King Yan to see blood when he is injured.King Yan's attention naturally fell on the fight, without a hint of riot and restlessness.

When Sanbao bent down to put the water basin in place, there happened to be guards outside the door who lifted the curtain and saluted, "My lord, a document from Peking."

Seeing Zhu Di nod his head, Sanbao took it and handed it all to King Yan.

Zhu Di's eyes were cold, and he opened the top letter casually, which was sent as usual about Peking affairs.

Zhu Gaochi is an honest person, and his previous mistakes will also be included in his records. As Zhu Gaochi gradually changes, Zhu Di also seems to have seen Zhu Gaochi's growth.

Although he prefers the second son, but the elder son has improved, Zhu Di is naturally a little happy.

After reading Zhu Gaochi's letter, Zhu Di's eyes fell on the following letter. The familiar handwriting made Zhu Di raise his eyebrows slightly, a little interested.

There are several important tasks, and this can be ranked second, which is a bit important.

Zhu Di was a little curious about what He Yuxuan wrote.

Zhu Di's breath eased invisibly, and Sanbao knew it well, what Peking sent today should be a good thing.

A quarter of an hour later.

Zhu Di took out his own seal, and Sanbao subconsciously took out the ink pad, and watched the prince stamp a mark on the article he had read, and his words were also very generous, "Let the prince do it with confidence."

Sanbao was slightly surprised, it was rare for the prince to speak very mildly when he mentioned the son.

Zhu Di was very interested in He Yuxuan's opinion on medical soldiers and standard wound medicine.

If it can really be promoted, so what if it takes a long time?

Zhu Di was originally a general, and as a general, what hurts the most is the casualties of soldiers.

If it is really possible, at least there will be a standard for the medicine for trauma, and Zhu Di will of course enforce it.

Even the so-called medical soldier, if he can't start with medicine, even if he can't, he will dig out some people to try.The group of military doctors huddled in the barracks could only stop losses after the war, and this part was never taken into consideration during the war.

Sanbao sent out the article with King Yan's seal, and took it back as it was after a while, holding an oiled paper bag in his hand, and said in a confused tone, "My lord, this was sent from Peking just now."

King Yan frowned. This accelerated speed was almost as fast as sending letters at normal speed. Could it be that something serious happened?

The atmosphere in the big tent was a little condensed, and Sanbao didn't dare to be born, for fear that something bad might happen... such as being attacked by the rear or something.

After a while, there was a crisp "click" in the big tent, but it was Zhu Di who broke the corner of the table abruptly.He didn't care about the bloodstains on the tiger's mouth, clapped his hands and laughed, "Haha