Zeng Qinda greeted the scribes and put out paper, ink, pen and inkstone. He looked serious as if he was working in the hall, but his tone was extremely soft.

"I have a few questions to ask the young lady. The scribe will record them all. Is there any difficulty?"

Xin Yi smiled: "It's not difficult. Sir, please ask."

Zeng Qinda bowed to Fu Jiuqu again and then cleared his throat.

"On May 15th, has Prince Duan Yun of Dali ever been to the medicine shop?"

Xin Yi: "Been here."

Zeng Qinda said: "Young lady, why don't you tell me what happened that day?"

Xin Yi did not hesitate and answered truthfully according to Fu Jiuqu's words without any concealment.

Zeng Qinda was not surprised at all when he heard about the relationship between Zhang Xun and Duan Yun, but when he heard that Duan Yun had come to seek shelter from Zitang, he was so shocked that his eyes almost fell out.

After hesitating for a moment, Zeng Qinda asked with a smile: "I heard from the young lady that the lady and Prince Duan had a very happy conversation that day, and there was no disagreement at all. Then why did the ointment that the lady gave to Prince Duan contain a lot of lead powder?

Caused Prince Duan to be poisoned and die?"

Xin Yi raised his eyes and glanced at Zeng Qinda and Wu Zuo beside him, and suddenly laughed.

"First of all, I have to correct Mr. Zeng. Even if the ointment contains a large amount of lead powder, it will only induce diseases, and it will take a long time to be effective. It is impossible for Prince Duan to die of poisoning in such a short period of time."

After a pause, she raised her lips and smiled, her eyes shining with confidence.

"Unless Prince Duan doesn't understand that his daughter's ointment is meant to be rubbed on the skin, and takes it internally as medicine."

But in fact, how can any daughter take the ointment internally? Duan Yun is not a fool.

Xin Yi felt that the person who framed her was very ridiculous.

Zeng Qinda's face darkened, "Do you really mean what you said?"

Without saying much, Xin Yi suddenly walked to a medicine cabinet in the room in front of Zeng Qinda, pulled out a jar with a lotus pattern, and showed Zeng Qinda the label on it.

"This one is called Mido Monk, also known as the furnace bottom. The reason why it is called this name is because Mi Tuo Monk comes from the bottom of the furnace that was deposited during lead smelting, and it contains a large amount of lead powder."

Zeng Qinda: “What is it used for?”

Xin Yi smiled slightly, "As the saying goes, medicines and poisons are not divided into different families. Mitoseng can be used externally to astringe sores and treat scabies. It is also a commonly used medicinal material for women to cleanse and repair their faces. It is said that the first prescription in the Tang Palace - Concubine Yang Guifei's "makes the face glow"

The recipe is prepared with Mitoseng. Long-term use can make the skin radiant, remove freckles and nourish the skin..."

How could Zeng Qinda know what women put on their faces all day long?

He glanced at Wu Zuo, thinking he was asking something, but before he could say anything, he saw Xin Yi suddenly opened the jar, scooped out a spoonful of Mi Tuo Monk from the jar, placed it in the palm of his hand, and then smeared it on his face in public...

"Xin Yi!" Fu Jiuqu dropped the teapot in his hand and shouted to stop him.

But she glanced over quickly and smiled.

Fu Jiuqu tightened his lips, his eyes showing disapproval.

In his opinion, even if the lead powder rubbed on the face only caused a little damage, Xin Yi should not take the risk.

However, Xin Yi calmly turned his face towards Zeng Qinda, his neck was slightly stiff, and his eyes were smiling.

"Have you seen it, Mr. Zeng? The lead powder contained in Mi Tuo Monk is much higher than the good color ointment I made. It is just one of the raw materials. If applying it like this will be poisonous, then there is probably no need for Mr. Zeng to come to me today.

, the Dengwen drum in Kaifeng Mansion has long been beaten to pieces by the sisters who used my grease, right?"

Zeng Qinda was shocked by the boldness of this woman's behavior, exchanged a look with Fu Zuo, and then saw the displeasure on Fu Jiuqu's face, and quickly apologized.

"I already know the cause of the case, so I will go back and restore Mr. Lu."

After saying that, he bowed deeply to Fu Jiuqu.

"Prince, please take your leave."

Fu Jiuqu frowned and said nothing, only nodded slightly.

Zeng Qinda took He Ren and two guards and left in a hurry.

Xin Yi watched him go away, and paused. Just as he was about to turn around, his arm was pulled by Fu Jiuqu. Before he could react, he fell into his arms.

"What are you doing?" Xin Yi whispered, looking at him with wide eyes inexplicably.

The beautiful lady Fu Jiuqu was in her arms, and her face looked a little better. She snorted, hugged Xin Yi, and walked to the pool in the yard, speaking with a tone of anger.

"Don't do such stupid things again!"

Xin Yi curled his lips in dissatisfaction, "Isn't this just to prove my innocence?"

"No need." Fu Jiuqu walked to the pool and brought a porcelain basin over. After filling the water, he took out the handkerchief in his arms and wiped it on Xin Yi's face, "With me here, who dares to embarrass you?"

Xin Yi's head was shaking due to his actions. Just as he was about to speak, Fu Jiuqu stopped him sternly.

"Shut up!"

"..."

"Didn't you say that this is a fatal poison?"

"..." Xin Yi looked at him with half-squinted eyes, watching in amusement as the man gently but nervously wiped his face.

From the perspective of traditional Chinese medicine, talking about toxicity regardless of dose is just a hooligan...

But she liked that Fu Jiuqu was so concerned about her.

Her gentleness and affection are astonishing, and her appearance is comparable to that of a fallen flower.

What woman doesn't love such a lover?

After Xin Yi finished washing her face, Fu Jiuqu called Sun Huai and cleaned up the porcelain basin and the floor. Then he breathed a sigh of relief, looked at Xin Yi's wet eyelashes, pinched her face hard, and said dissatisfiedly.

One sound.

"You knew I was going to kiss you, but you poisoned me."

Xin Yi almost didn't react until Prince Guangling proudly put his hands behind his back and turned around, and then he couldn't help laughing.

"Okay, I was wrong."

~

The Kaifeng Mansion found no clues in Xinyi Pharmacy, so they specially asked several old doctors to inquire about what Xinyi said.

Although the old doctor's understanding of Mi Tuo monks and lead powder is not as systematic and complete as that of modern Xinyi, his statement is very close, which can be regarded as verifying that what Xinyi said is true.

So, unless Prince Duan really takes the ointment as medicine, this case has nothing to do with Xin Yi.

After several adults put it together, they naturally connected the case with the assassination of Bianjing when the crown prince came to Beijing.

Therefore, Lu Gongchuo had to visit Zhang Xun in person.

The two were officials in the same dynasty, and in terms of Zhang Xun's rank, it was definitely not as high as Zeng Qinda's. Lu Gongchuo came to visit in person the next day.

Zhang Xun did not shy away from his interactions with Duan Yun. He truthfully told the story of their interactions, from their initial encounter at Kunlun Pass to their friendship when they accompanied him to Beijing.

"I owe her something. Mr. Lu, have you found out who the murderer is?"

The seven-foot-old man's eyes were red and he was extremely sad. Lu Gongchuo couldn't help but sigh after hearing this.

"This...the murderer has not yet been identified. Mr. Zhang expresses my condolences."

On the same day, Lu Gongchuo asked Zhang Xun some details about his interactions with Duan Yun, including the time and place of the last meeting, etc., and asked the scribe to record them all.

However, the last time Zhang Xun saw Duan Yun was the night before Duan Yun went to the medicine shop to find Xin Yi.

Early the next morning, Zhang Xun went to the barracks of the Infantry Guard Division.

The first thing that happened when the new official took office was that he stayed in the army for several days in a row, inspecting and training the soldiers. There were countless people who could testify for him, but they were not even present.

·

This was the first major case that Mr. Lu took office, involving the death of the crown prince of Dali. Lu Gongchuo also had trouble sleeping all night, dreaming about catching the real culprit...

Unfortunately, apart from the bottles of suspicious ointment, no trace of homicide could be found at the crime scene.

After Duan Yun came back from the medicine shop, because Zhang Xun left home, he stayed in the post house for several days and never went out.

Who killed Prince Dali?

The case has reached a deadlock.

Because the Imperial City Department was in charge of the assassination of Prince Dali, the Kaifeng Mansion took the initiative to come to the house and requested cooperation in handling the case.

Xin Yi didn't know anything about these things when they happened.

She was busy in the pharmacy, preparing.

It's not certain when the eldest princess will come to see her. She must take care of everything in the pharmacy before leaving, explain it well, and not let Fu Jiuqu know about it.

Everything else is easy to talk about. There is Zhou Daozi for consultation and prescribing, Mrs. An for internal affairs in the pharmaceutical factory, and there are so many helpers like Xiang Ling and Liangren. As long as they follow the paved track, they will not go wrong.

The only thing Xin Yi couldn't worry about was the three little ones.

Once he goes south, there is no definite date for when he will return. Even if the original plot develops, Nong Zhigao will be defeated by Di Qing and go into exile in Dali, which will only happen in the first month of next year.

Even if everything goes well, it will take eight or nine months to come and go. What will happen to the three children?

Xin Yi was so worried that he couldn't sleep. He loved his three children more and more. He grabbed San Nian and squeezed and hugged her at every turn, making the children confused.
To be continued...