Liu Chan didn't know Liu Bei's choice, and in fact he didn't know much about everything that happened in Hanzhong. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

But when he got the two urgent letters, he suddenly understood that history might really be very different.

These two letters, one from Chengdu and the other from Hanzhong, do not need to be mentioned by whom.

Written in brocade cloth, it is the first time that his cheap father has a letter to his family, although the words are harsh, but the concern is not fake, the general meaning is to let Liu Chan stay in Wuyang safely, and the rear affairs should obey Zhuge Liang's deployment. Obviously, in Liu Bei's view, no matter how good Liu Chan's performance is during this time, he is still a child who has not experienced training after all, and he still needs the scheming Zhuge Liang to preside over the overall situation.

This letter also indirectly indicates the crisis of the current situation, otherwise, Liu Bei would probably let Liu Chan out to experience some training, not to mention dealing with the political situation and experiencing the military situation, instead of asking him to stay in Wuyang honestly.

However, the letter sent from Chengdu and written by Zhuge Liang himself on bamboo paper was a letter of appointment and a deputy letter, which was only used for notice, and the official decree was sent to the Taishou Mansion.

"Qianwei Taishou, Xingye General Li Yan led Qianwei to move to Jiangyang as a garrison, and set off immediately. Qianwei County, a matter of affairs should be handled by Liu Chan, the eldest son of the lord. ”

At this time, Liu Chan understood why Li Yan left some county affairs to himself from time to time to deal with during this time, at most he mentioned it a little at the end.

Most of them were hinted at by Zhuge Liang to do so!

From this point of view, Zhuge Liang estimated that he had already expected that Li Yan would be transferred to Jiangyang to guard the town. As for the information behind Li Yan's transfer, Liu Chan also shuddered a little, and would rather transfer the county soldiers in the state who had not fought and guarded a county, rather than return troops from Hanzhong for reinforcements, which obviously means that Liu Bei will make a big move.

Liu Chan understood after a little thought, his cheap dad definitely wanted to take advantage of the great victory in Hanzhong to go north to fight!

"Such a plan is extremely fierce, regardless of Jingzhou and behind him, he is determined to move forward, if he wins, he will be like a tiger out of the cage!"

For such a strategy, Liu Chan really doesn't know how to comment, most of the desperate tactics of the art of war are not from Zhuge Liang's hands, so the only person who offers this plan is the Fa Zheng who follows his cheap father.

It's just that in this way, Jingzhou's own Uncle Guan is most likely regarded as an abandoned son. In this strategy, it must be like a reef that does not move in the waves, resisting the ferocious offensive of Cao Cao and Sun Quan, so as to delay time for the Hanzhong front.

Liu Chan thought that he had changed the development of history, but he didn't expect that in the end, he not only returned to the original point, but also became even worse.

With Guan Yu's temperament, he will definitely not retreat after receiving such a military order, this is his duty, and it is also the arrogance that he relies on to become famous.

Although Liu Chan wanted to save him, his inner reason told him that it was the best choice to wait and see. But in this way, he always felt unusually unwilling.

Just as he frowned, a historical event suddenly came to his mind.

Liu Chan suddenly remembered that in history, before the Eastern Wu attacked Jingzhou, Sun Quan had proposed to Guan Yu to marry Guan Yu's daughter for his son. As a result, Guan Yu directly said, "My tiger girl Anken marries a dog!" He refuted it, without saving face for the other party, and the prejudice against Jiangdong in his words was also overflowing.

Although this matter has not happened at this time, Guan Yu definitely loves his daughter, even to the point of spoiling.

Why don't you start here?

Liu Chan closed his eyes and fell into deep thought......

……

In another part of the house, there was also a person racking his brains.

This person is the Qingcheng Mountain Zhengyi Alliance who stayed behind to teach Qingsong Dao.

After spending a day or two, Qing Song finally figured out how to use the various instruments in the laboratory.

Now, he is beginning to work on the task given to him by Liu Chan.

Refining of black powder.

After studying the book "Basic Chemistry" day and night, Qingsong found that many of the basic reaction principles were actually very similar to his daily alchemy, but those mysterious phenomena that he did not seek to understand in the past were now explained by some seemingly powerful principles.

He now also understands that the dansha, which he worshipped as a sacred object, and the mercury in it, are actually some heavy metal highly toxic substances, and after a few days of systematic study, he has learned to divide the physical and chemical properties of matter into two categories to study. Now thinking of the golden pills he had refined in the past, Qing Song's heart was afraid for a while, fortunately, he chose to close the retreat before he had time to give these golden pills he had refined to others or take them himself, otherwise the sin would be great.

Speaking of this, his mind suddenly burst into his mind with imperceptible remorse and self-blame on the face of his junior brother Qingyun after the young master Liu Chan revealed the nature of Dansha.

According to the book, ingestion of a small dose of mercury will not produce acute poisoning symptoms, but will become chronic poisoning, gradually making people fall into a desperate situation.

With the temperament of the junior brother, I am afraid that those golden pills will be ......

He shook his head, and couldn't help but think of a few big words written on the first side of the book "Basic Chemistry".

"The purpose of science is not to open the door to infinite wisdom, but to draw boundaries before infinity."

This sentence is very straightforward, the words of the sage selected from the "Dan Sutra", or any ancient book, are much more mysterious and obscure than it, but Qingsong, who has experienced the Jindan incident, thinks that this plain sentence seems to awaken something in his heart.

Shaking his head, Qing Song pressed these thoughts to the back of his mind, focusing his mind on the several raw materials in front of him.

The only information Liu Chan can provide is basic "reactive substances", well, to be honest, he still thinks this title is a bit awkward, but after reading it a few more times, he takes it for granted.

saltpeter, sulfur, charcoal.

Qing Song couldn't help but fall into deep contemplation, and his previous alchemy experience opened up in his mind little by little, constantly looking for the pill recipe for these three substances.

saltpeter, which can clear dampness and poison; sulfur, cough and phlegm; Charcoal...... Presumably to make fire and heat?

These three are incompatible, what is running through them that leads them to fuse into black powder?

The more he thought about it, the more he couldn't figure out that in his previous experience, there was no Dan Fang about it.

Just when he couldn't think about it, Qingsong inadvertently thought of what Liu Chan said at the end of yesterday's evening class:

"Heaven is unfair, if there is no distinction between ten, there is no result."

He thought for a moment and took out a book with a cowhide cover, which was bound with bamboo paper and a matching pencil inserted into it.

"One question: What is black powder and how is it used?"

"Second question: What about saltpeter alone?"

"Three Questions: ......"

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