"Haha, the second son is really powerful, in such a short period of time, the situation in Jiangdong has stabilized, and it is in his own hands!" In the evening, in Sun Quan's room, the man in black came again.

"Humph! This Koto should have been mine! Sun Quan snorted coldly, "Moreover, we are just a cooperative relationship, don't try to get involved in my Jiangdong, otherwise you will look good!" ”

"Hehe, the second son laughed, my father-in-law is not interested in Jiangdong, only interested in the territory that the second son promised to give!" The man in black laughed evilly.

"Humph! That's the best! Sun Quan snorted.

Seeing that he had nothing to say to Sun Quan, the man in black turned around and left the room.

"What's the big deal for you, I'll lead my troops to take it back!" Looking at the back of the man in black leaving, Sun Quan said coldly.

……

In the dean's office of Liaodong Medical College, Zhang Zhongjing was calling for Lu Su's grandmother.

"Mr. Zhongjing, how is it?" Zhao Feng asked anxiously, as if Zhang Zhongjing's vein was his grandmother.

"Hey!" Zhang Zhongjing sighed. This sigh didn't matter, Zhao Feng and Lu Su's hearts all rose to their throats.

Immediately, I only heard Zhang Zhongjing say: "It's really a quack doctor!" ”

"What do you mean by that?" The implication of Zhang Zhongjing's words seems to be that this old lady's condition is not as bad as imagined!

In fact, the old lady's condition was not as serious as she imagined, and the initial words were just ordinary typhoid fever. But that's certainly not what the initial diagnosis says, right? Zhang Zhongjing set his sights on Lu Su.

"Well, at the beginning, that Lang Zhong said that Yang Qi was insufficient and needed to be recuperated, so he prescribed a prescription for a big supplement!" Lu Su nodded.

"That's it!" Zhang Zhongjing nodded, looking like it was really like this, "The old lady's body is already tough, and the typhoid fever does not need to be greatly repaired, as long as the disease is cured, the old lady's body will recover as before." But this supplement is not good, I believe that the lord and this gentleman have heard the sentence 'too much', right? The old lady made up too much! ”

"Moreover, the old lady's typhoid fever has not been cured yet, which is why she looks so weak now!" Zhang Zhongjing's tone became more and more stern.

"Then there is a cure?" Lu Su asked urgently.

"Wait a minute, please rest assured that the old lady's illness is not finished yet!" Zhang Zhongjing waved his hand.

"I'm sorry, I'm in a hurry!" Lu Su blushed and apologized to Zhang Zhongjing.

"It's okay, you're also out of filial piety!" Zhang Zhongjing said with a smile, "It's really thanks to sending the old lady to Liaodong, the old lady is in such a physical condition, I dare to say that there is no fourth person in the whole Han who can be treated except for the three of our divisions!" ”

"The old lady's body is not like that of young people, and there is no need to make up for the shortcomings, but such a supplement is counterproductive, which makes the old lady's body decline in all aspects!"

"Then ask Mr. Zhongjing to help!" Zhao Feng said at this time.

"Well, no problem!" Zhang Zhongjing nodded, then picked up a pen and wrote a prescription on the paper, and handed it to Lu Su, "You go to the ward to grab the medicine quickly!" ”

"Good!" Lu Su took the prescription and trotted out of the dean's room.

"Lord, I'm going to give the needle, don't let people disturb me during this process!" Zhang Zhongdao.

"Okay, Mr. Zhongjing, don't worry!" Zhao Feng nodded.

The next time is Zhang Zhongjing's treatment time, even acupuncture with oral administration, before and after, Zhang Zhongjing was busy for nearly two hours.

After the treatment, Zhao Feng looked at Zhang Zhongjing's tired appearance, and couldn't help but sigh in his heart, I'm afraid that an operation in the future will be like this!

"This gentleman, the old lady is still a little weak, I also have a prescription for recuperation, Mr. take the medicine according to the prescription, and then decoct the medicine according to the above method, and let the old lady take it, within three days, the old lady can get out of bed and walk, ten days later, the old lady will recover as before!" Zhang Zhongjing wrote another prescription.

"Thank you sir, thank you sir!" Lu Su was very excited, and thanked Zhang Zhongjing repeatedly.

"You don't need to thank me, it is the duty of a doctor to save people!" Zhang Zhongjing shook his head.

"Okay, Zijing, hurry up and send your grandmother home to recuperate!" Zhao Feng smiled slightly, a famous doctor in the late Han Dynasty really deserves his reputation, and more importantly, Zhang Zhongjing is the author of "Treatise on Typhoid Fever and Miscellaneous Diseases", can he still be so sick with typhoid fever?

"Yes, yes, yes!" Grandmother's illness was cured, and Lu Su was so excited that even his voice trembled a little.

After sending his grandmother home with Lu Su, Zhao Feng came to the small laboratory on the Taishou Mansion.

Before, Zhao Feng had already sent someone to buy saltpeter, sulfur and charcoal. That's right, Zhao Feng is about to start developing black powder!

Since there is no purification technology yet, yellow powder will not be thought of for now! Moreover, the purity of saltpeter at that time was not high, so the proportion of black powder formula in this situation today is definitely not 75% saltpeter, 12.5% sulfur, and 12.5% charcoal. As for what the specific value is, it still needs Zhao Feng to practice it personally!

If you want to do it, Zhao Feng didn't want anything else, so he directly configured a small package of gunpowder according to the standard ratio: 6:1:1, and wanted to try it first.

But after igniting, Zhao Feng was disappointed, what kind of gunpowder is this, even when the New Year is in later generations, the flowers put by the children may not be as good.

The first time was obviously a failure, Zhao Feng was not discouraged, and continued to adjust the proportions, adding more saltpeter......

The second time was still a failure......

The third time, failed......

Fourth ......

……

"Bang!" After an afternoon of failure, Zhao Feng finally heard the explosion he wanted.

Zhao Feng was excited, it seemed that he had finally found the right direction and continued to do his experiments, but there was another series of failures and a series of fine-tuning.

"Boom!" Finally, with Zhao Feng's efforts, the first decent black powder was finally made, although the power was not large, but it was not small, this small package of gunpowder actually blew up the table in front of Zhao Feng! Immediately, Zhao Feng excitedly noted down the proportions he had just used when he was matching.

Then, Zhao Feng stuffed all the raw materials into a large wine jar according to this ratio, and then Zhao Feng weighed it, about more than 20 catties, and found Guo Jia and asked him to prepare some pigs, cattle and sheep to prepare for the experiment.

Guo Jia was a little confused by Zhao Fengde's order, pigs, cattle and sheep? What are you going to do? However, doubts are doubts, Guo Jia is more curious in his heart, he wants to know what the "experiment" in Zhao Feng's mouth is!

So, Guo Jia also quickly prepared some pigs, cattle, sheep and chickens and other livestock in accordance with Zhao Feng's instructions, enclosed these in a mountain col not far from the outskirts of the city, and sent troops to block the surroundings, this is a military secret, and no leakage is allowed!