Chu You was filled with resentment and anger but couldn't say anything. He could only punch the coffee table hard, causing the teacup to jump.

Li Yun'er saw the tea splashing onto his fist and fearing that he would be scalded, he quickly wiped the tea off his hand with a handkerchief.

Seeing that he was not burned, she felt relieved, and gently rubbed his big hand, saying: "My lord, I have something I want to give you, it's a prescription."

"Penicillium powder."

She uttered these three words slowly.

Chu You knew that Wancaotang was the pharmacy opened by Li Yun'er, and he also knew that the Ministry of War had purchased a batch of Qingmosan Powder from Wancaotang. Chu You was proud that the pharmacy opened by Li Yun'er had such a prominent reputation.

Li Yunyan held Chu You's hand with both of her own and continued, "This is my dowry."

She changed her surname and clan name, and could not take the dowry from the Gu family. Later, her dowry was prepared for her by King Kang.

Now she has nothing.

Chu You said distressedly: "I don't need your dowry..."

If she could marry him, it would be the best dowry.

"Your Highness, listen to me," Li Yunyan interrupted Chu You, "not only Qingmosan Powder, I also have other things."

Chu You was stunned. Li Yun'er took out a folded piece of silk paper from his sleeve pocket and handed it to him.

Chu You slowly unfolded it. The silk paper was densely covered with small characters written in hairpin-shaped calligraphy. The more he looked at it, the wider his eyes widened. He showed an expression of disbelief and held the silk paper tightly with one hand.

"This..." Chu You looked at Li Yun'er's sparkling eyes in surprise.

Gu Yunyan said slowly: "Although these are not as good as the "Taizu Handwritten Notes", they are enough to make others think that they are from the "Taizu Handwritten Notes."

"Your Majesty, the family is still important 'now'."

She emphasized the word "now".

Before King Kang sat on the supreme throne, aristocratic families were very important.

Chu You tilted his face and listened quietly. The light danced on the tip of his tall nose, but the warm light made people feel cold at this moment.

Li Yunyan analyzed calmly: "The aristocratic families are hateful, but in fact, they have no other choice unless they are willing to bow to the emperor. Are they willing?"

Not necessarily. Chu You knew that if those noble families had no hope, they would lie dormant and wait for the opportunity. Many noble families had well-educated talents, and they would allow three or five young men from the side branches of the family to enter the court through the imperial examination. In this way, they would not be far away from the court, nor would they lose the integrity of the noble family.

The aristocratic family had been dormant for thirty years, waiting from Emperor Taizu to the previous emperor, waiting for the opportunity for the aristocratic family to rise again.

Most of these aristocratic families have lasted for hundreds of years. They do not focus on immediate benefits, but on the long-term future. They are cautious and will not easily gamble everything on one throw.

Therefore, Chu You knew in his heart that if he continued like this, the aristocratic family would most likely give up on him and wait for the next opportunity.

But even so, he never regretted it.

Chu You's eager gaze fell on the piece of paper given by Li Yun'er. Two flames ignited in his pupils and his blood boiled in his chest.

He knew that if the aristocratic families thought that "Taizu's Handwritten Notes" was in his hands, they might change their minds.

The aristocratic family is unreliable, but it is a useful weapon.

"Auntie, I'm lucky to have you." Chu You's eyes became bright and sharp again, and a spirited smile slowly blossomed on his lips, "You are really my lucky star."

It was true nine years ago and it is true now.

Li Yunyan smiled slightly.

Chu You gazed deeply at Li Yunmeng, lowered his head and kissed her lips, sucking them in. Li Yunmeng's cheeks flushed like rouge in the light.

He whispered in her ear: "Auntie, you are so kind!"

The candle flame flickered gently in the lampshade of the palace lantern, and the candle oil made a soft crackling sound.

The two of them embraced each other, and the piece of silk paper fell from the man's fingers, spinning in the air...

From outside the window, the sound of a night watch drum can be heard. It is late at night...

After being a hot topic in the capital for a few days, the topic of Prince Kang's wedding gradually faded away and was replaced by new topics.

In the eyes of everyone in the capital, Prince Kang has behaved much better after his wedding, just like an ordinary prince of the royal family who is not impatient or anxious about his duties.

Most of the adult brothers of the emperor and Prince Kang went to their fiefdoms after their marriage, but no one in the court mentioned the matter of letting Prince Kang go to his fiefdom. No matter whether they were aristocratic families, nobles, or clan members, they all forgot about this matter.

The days passed peacefully for another seven or eight days, until March 15, when Prince Kang Chuyou presented a prescription called Qingmosan Powder in public at the morning court.

"Penicillium powder is very effective in treating high fever, tuberculosis, purulent ears and other diseases caused by trauma. I am presenting this recipe on behalf of the princess. I hope it can be used in the army, which can greatly reduce the casualties of our Dajing soldiers and leave a good reputation for generations to come."

"This is a small gift from me and the princess. Please accept it and benefit Dajing!"

Chu You's passionate speech caused an uproar in the room.

Penicillin powder has been popular in the capital since the beginning of the year. Everyone knows that it is a life-saving medicine. The Ministry of War once purchased a batch of Penicillin powder for military trials. It is indeed effective. The Ministry of War and the Imperial Hospital praised it highly. It was very popular for a while, but few people knew who the owner of Wancaotang was. There has been a lot of speculation and discussion about Wancaotang these days.

Most people do not associate Qingmengsan with "Taizu's Handwritten Notes". After all, to them, "Taizu's Handwritten Notes" is just a legend.

There were also a very small number of people who, like the emperor, Fengyang and King Kang, knew a little about "Taizu's Handwritten Notes" and had long been secretly suspecting whether the owner of Wancaotang had obtained "Taizu's Handwritten Notes".

But they didn't expect that the owner of Wancaotang was the newly promoted Princess Kang, Li Yunyan.

In the Golden Palace, all the civil and military officials were shocked.

The ministers discussed the matter among themselves, and words like "Penicillin Powder", "Penicillin", "Taizu's Handwritten Notes", "Princess Kang" and so on floated out from the boiling crowd.

Everyone was shocked, surprised, speculative, and excited. Only Chu You, who was standing in the center of the Golden Throne Hall, stood there motionless, like a straight spear.

A barely perceptible smile appeared at the corner of Chu You's lips, and he exuded an air of superiority and pride, looking heroic, noble and extraordinary.

Xiao Shoufu, who was standing at the front of the civil service queue, had a strange look in his eyes. He winked at someone in the queue without making a sound. Then a middle-aged official raised a question: "May I ask, Your Majesty, how did you get Princess Kang?"

It seemed that he was only asking about Penicillium Powder, but most people knew that he had other intentions.

The other court officials fell silent again. Everyone's eyes were fixed on Chu You. Their eyes were filled with expectation and a hint of thoughtfulness.

Chu You maintained his fist-holding posture, turned his gaze to the middle-aged official who asked the question, and said calmly: "Princess, you are lucky. You got the recipe by accident."

All the ministers looked at Chu You, waiting for him to continue, but he pursed his thin lips and stopped talking.

His words were obviously reserved, which made people wonder what else he was hiding.

The emperor on the throne said calmly to the chief eunuch Zhao Rang, "Bring it up to me so I can have a look."

Zhao Rang bowed and accepted the order, then walked towards Chu You below.

The atmosphere in the palace became a little strange. It seemed calm, but there was an undercurrent. Everyone's eyes wandered between the emperor and the brother Prince Kang.

The current emperor has been on the throne for only one year, and the imperial examination is imminent. Now, more than half of the officials and nobles in the court are old ministers of the previous emperor. The current Grand Secretary of the Hanlin Academy is a veteran of three dynasties and is over 70 years old.

Almost all the ministers knew that the late emperor had been searching for "Taizu's Handwritten Notes" for twenty years since Taizu's death. Emperor Taizu of this dynasty was a man of extraordinary talent and genius, and he often had all kinds of fantastic ideas. When he was alive, he not only invented mercury mirrors, soap, glass, windmills, etc., but also improved muskets and looms. It is no exaggeration to say that his contribution will last for thousands of years.

When he was old, Taizu recorded some ideas that he had not had time to realize in his notebooks. However, the notebooks disappeared after Taizu's death. Some people rumored that Taizu burned the notebooks himself before his death, while others rumored that the notebooks were in the hands of Princess Fengyang. There are many different opinions.

If the "Taizu Handwritten Notes" was really in the hands of Kang Wangfei Li Yunyan, then in addition to penicillin, were the other things recorded in it also in the hands of Kang Wangfei, or Kang Wang? For the ministers, it didn't matter whether Kang Wangfei was really lucky enough to get the "Taizu Handwritten Notes" or Kang Wang used Kang Wangfei's name for some purpose.

What is important is the "Taizu Handwritten Notes" itself.

Some of the smart court officials all looked thoughtful.

The value of "Taizu's Handwritten Notes" is immeasurable. It can bring Dajing to a new level, make Dajing prosper, and even surpass Nanyue.

Amidst all the burning gazes, Zhao Rang took the prescription from Chu You's hand and personally presented it to the emperor on the throne.

The emperor looked at the piece of silk paper, his pupils shrank slightly, and he subconsciously pinched the piece of silk paper tightly. Even though he said nothing, he could not hide his emotion.

Just this little bit of gaffe was enough to make the civil and military officials who were observing the situation below imagine all kinds of things.

The emperor tried to speak calmly: "Seventh brother and his wife selflessly offered the prescription, caring about the people of the world. This is indeed a noble cause and a blessing for Dajing. I am also pleased..."

The emperor spoke some high-sounding words lightly, and rewarded Chu You and Princess Li Yunyan with a thousand taels of gold as a reward. Chu You thanked on behalf of the princess, and there was a feeling that the monarch and his subject were in harmony.

The ministers below all had their own thoughts and were in no mood to discuss other state affairs. Afterwards, the emperor dismissed the court early.

After the emperor left, Chu You became the center of attention. Even Chief Minister Xiao and other cabinet elders came forward to exchange polite greetings with him.

At first glance, the hall seemed full of joy.

In the blue sky outside the hall, the sun was hidden behind thick clouds, and a gentle breeze blew into the hall, and there seemed to be a faint salty smell in the air.

The weather seems to be changing.

As soon as the emperor finished his court session, he immediately sent someone to summon Fengyang to the palace, and personally handed the prescription presented by Chu You to Fengyang.

"Aunt, please take a look."

The emperor was heavy-hearted, walking up and down the room with a complicated expression, as if he was reminiscing about something or venting some emotion.

After a while, he heard Feng Yang's affirmative voice behind him:

“It’s true.”

Fengyang can determine this.

Her knowledge of penicillin was what she heard from Taizu in person. Although the memory was long ago, she still remembered some key points, such as what she had told Gu Yanfei before, that penicillin was extracted from Penicillium, and that it had to go through cultivation, filtration and other steps before penicillin could be extracted, and that penicillin could not be taken orally, etc.

The emperor turned around upon hearing this, his old eyes somewhat dazed, unable to conceal his excitement.

When he was young, he served Taizu when he was ill. One time, he accidentally knocked over a medicine bowl and turned over a few pages of Taizu's Notes. Those pages happened to mention penicillin. At that time, he was busy wiping the medicine off the paper and just glanced at it. He didn't remember it clearly and couldn't write it down from memory. He only roughly knew that the prescription presented by Li Yun'er was very similar to what was written in the notes.

Feng Yang pointed to the end of the prescription and said, "Tai Zu once said that penicillin is not perfect. It can be fatal to some people and there is no cure."

"This prescription mentions an allergic reaction, which can cause dermatitis, rashes, and asthma attacks at the mildest, and rapid heart rate, convulsions, coma, or even cardiac arrest at the worst. However, only a very small number of people will have an allergic reaction."

The two statements are similar.

The emperor came over and sat down next to Fengyang, with only a small square coffee table between the aunt and nephew.

The emperor took a sip of tea and calmed down a little. He then asked, "Aunt, what do you think? Will the Taizu Handwritten Notes be in the hands of Princess Kang?"

Feng Yang did not answer directly yes or no. He was silent for a moment, then changed the subject: "Everyone says that Taizu is talented. The contents of that notebook can help Da Jing reach a higher level. One day, Da Jing will be able to lead his troops south and unify the north and the south."

Fengyang said "the world" but he was thinking of the late emperor.

This is what the late emperor thought, which is why he was so obsessed with "Taizu's Handwritten Notes". In his view, the two northern expeditions of Yue State fifteen years ago and nine years ago were also because Taizu did not leave "Taizu's Handwritten Notes" to him. Otherwise, there would be nothing to fear about the mere South Yue State.

The late emperor had said similar words more than once when he was extremely angry or drunk.

Feng Yang sighed deeply and continued, "When Taizu was old, he once asked me, if you give a kitchen knife and a flintlock rifle to two five or six-year-old children, which one is more dangerous?"

The answer is obvious.

A five or six-year-old child is unlikely to kill an adult with a kitchen knife, but a flintlock rifle can!

"Taizu said that Dajing was like a five or six-year-old child. Leaving the letter to the late emperor was like handing a flintlock rifle and a priceless treasure to a child. Holding a treasure in the hands of a child is a crime, and it will surely attract the covetousness of jackals. If you are not careful, you will not only hurt others, but also yourself."

"This is something he spent his entire life figuring out."

In fact, Taizu had also told the late emperor these words, but the late emperor was too stubborn to listen. He just believed that Taizu left the letter to her.

Fengyang closed his eyes, trying to calm the surging emotions in his body, then looked at the prescription in his hand again, reading it word by word, as if he wanted to chew every word carefully.

The emperor stared blankly at the blue sky with continuous clouds outside the window, thinking about Emperor Taizu, his great achievements, his earnest teachings, and his kindness towards him...

One of Fengyang's hands suddenly trembled.

She felt her heart twitch violently and a dull pain came from her chest as if being crushed by a heavy object. Her face turned pale instantly and even her lips lost their color.

The jade bracelet on her left hand was slightly warm, and a flash of light flashed across it quickly, disappearing in a flash.

"Your Highness the Crown Prince." The eunuch's shrill and soft voice of salute came from outside.

After a while, the door curtain was lifted from the other side, and Chu Yi, wearing an apricot-yellow prince's dragon robe, came in from outside, walking slowly.

Fengyang's hand was still holding the piece of silk paper, and he didn't care about Chu Yi at all.

She only felt severe pain all over her body, from the outside to the inside, as if her muscles and bones were being pulled and broken, and her whole body was weak and tired.

Her eyes went dark, and she fell forward powerlessly...

(End of this chapter)