Returning to the room, Shen Yu used the excuse of needing to prepare and left Yun Wei outside for the time being.
“Sister, is this another delivery from your relatives back home?”
Yin Qiu watched curiously as Shen Yu unwrapped the tightly sealed package while helping her pack the medicine box for later.
The package was quite large and had been wrapped in many layers.
After opening it, she found a sealed wooden box inside, filled with straw for cushioning and a letter.
‘What on earth is this?’
Shen Yu curiously picked up the letter and began reading.
The elegant and familiar handwriting belonged to her mother, Su Lianyue.
[Daughter, your mother finally produced that medicine you’ve been pining for. This stuff is truly useful. I poured some on a rag and pressed it against your father’s face, and he fell right asleep.]
[Admittedly, as you said, this medicine can indeed reduce someone’s pain while you’re cutting them open, but my precious daughter, using this for self-defense is the best way to use it.]
[So, after I tested the effects, I immediately packed a few bottles for you. You must protect yourself out there. If necessary, you can use this to make your escape!]
[Note: Do not smell it yourself. Do not use too much at once. Control the dosage, or it will kill people. Your father almost didn’t make it. Fortunately, your mother’s medical skills are decent enough that I saved him. Don’t worry about us.]
[Back side: Precautions, dosage, formula…]
Shen Yu finished the letter and stood there, stunned.
The anesthetic she had been dreaming of was actually created by her mother, Su Lianyue?
Moreover, just pressing a soaked cloth against the nose and mouth could knock out a man as sturdy as her father, Shen Bashan. Its powerful effectiveness left Shen Yu astonished.
At times, Shen Yu truly admired Su Lianyue.
Although she was the Saintess of the Evil Cult and researched various medical techniques and herbs solely to find ways to kill invisibly or torture others, it had to be said—she often stumbled upon greatness by accident.
When Su Lianyue wanted to create poison, she started with moldy items.
As a result, she created Original Penicillin.
It certainly killed people quickly—one injection could end a life in 3 hours.
However, under Shen Yu’s operation and dosage control, this Original Penicillin became one of her biggest trump cards.
It was the source of Qingfeng Village’s confidence when facing deadly symptoms like infections, plagues, and inflammation.
Even Shen Yu’s scalpel was modified from the Lingchi Knife Su Lianyue had prepared.
Since the purpose of Lingchi was to slice a person into thousands of pieces without them dying from blood loss, the blade was incredibly sharp and could effectively control bleeding.
As for the anesthetic, Su Lianyue had been interested in the concept ever since Shen Yu proposed it.
After all, the various spies planted by her Evil Cult desperately needed an agent that could knock people unconscious without a trace.
Originally, Shen Yu thought it would be impossible to extract an anesthetic using various medicinal herbs as raw materials, but Su Lianyue had pulled it off.
She had even followed the standardized production and clinical trials Shen Yu taught her, completely documenting the various reactions for different doses and providing specific preparation methods.
Shen Yu and Su Lianyue were mother and daughter, after all.
When they achieved results, they never hid them from each other.
They even relied on each other’s experiences to solve problems.
Shen Yu had modern thinking and rich clinical experience, while Su Lianyue possessed powerful local pharmacological knowledge and creativity.
One could say that with the mother and daughter working together, their influence on this world’s medical field was a total overwhelming dominance.
‘This is a huge help!’
Shen Yu instinctively let out a long sigh of relief.
This anesthetic was undoubtedly a stabilizing pill for her, making her more confident that she could save Marquis Wuding.
Saving Marquis Wuding meant that Qingfeng Village would be safe at least until the end of the year.
As long as Qingfeng Village remained dormant for the time being and didn’t cause trouble before the Imperial Court, the Empress wouldn’t press the Marquis to deploy his troops.
After all, there were many matters to attend to across the Empire.
It was true that Qingfeng Village was a major concern for the current Empress, but in terms of priority, Qingfeng Village didn’t quite rank at the top.
“Sister! Everything is packed!”
“Good, then let’s go to the Marquis Mansion.”
Shen Yu forced herself to memorize all the data, fearing she might accidentally forget something.
She hadn’t personally tested this anesthetic, so she could only use the medication conservatively according to the data provided by Su Lianyue.
If something went wrong, this substance could transform from a life-saving medicine into a tool for murder in an instant.
Although there was still a great deal of risk, it was significantly more merciful than Shen Yu’s previous plan of knocking the Marquis unconscious with a club or simply operating on him directly.
In any case, Marquis Wuding was already at Death’s Door.
Even the Imperial Physicians from the Imperial Academy of Medicine had already pronounced his death sentence.
Therefore, even if she used too much anesthetic, it would at least allow him to leave without pain.
That was better than being tortured to death by acute appendicitis.
Furthermore, Shen Yu was no fool. All things considered, she had a success rate of over 60%.
‘Yes! That’s enough!’