Daming: Grandpa Emperor, please get up and sit on my throne!

It has come to this point today.

No matter whether it was Zhang Yuqing from the Zhengyi Sect, Ma Rui from the Quanzhen Sect, or Liu Yuan who had knowledge of several Taoist sects and was good at alchemy, they had long since gotten rid of the secret rivalry and hostility towards each other at the beginning.

Instructing the little emperor and deceiving him into gaining wealth, fame, and a title?

It's better to fall down because of the poor quality of the skin.

Who can give this little ancestor some advice? If you had told me earlier, I wouldn't have come here!

At this time, Zhu Yunhuan's voice was heard.

The three of them remained calm, but they exchanged knowing glances, each secretly groaning inwardly, "Damn! Why does he always pick on us? Did we provoke him?"

Several brothers in distress even developed a sense of mutual sympathy.

The three of them stammered in silence for a moment, and finally, with a look of shame on their faces, they bowed to Zhu Yunhuan and said:

"I'm ashamed that I haven't thought about the ins and outs of this."

"Your Majesty, please forgive me. I am incompetent."

"Your Majesty, please give me some advice."

Who the hell could possibly know? If it changes, it changes. Why talk about the root cause?

Zhu Yunhuan certainly knew that they understood nothing at all, and he picked out these outstanding ones just to give them a few lessons and remove the arrogance of the so-called "experts" and "masters".

He knocked on the wooden board behind him and said, "This is the essence of all change."

But at this moment, the painful cry from the corner interrupted him: "Ah - uh - it hurts! It hurts! It's hot! Help! Ah -"

The source of this sound was naturally the death row prisoner who had just swallowed mercury.

The mercury content in Zhu Yunhuan's stuff was extremely pure and high. The mercury content in the elixir made by ordinary alchemists after they had over-fired and cooled it in the furnace and turned it over and over again was far inferior to Zhu Yunhuan's.

Anyone who eats it will of course die of poisoning.

Mercury poisoning can cause coughing, chest pain, difficulty breathing, fever, and even mental disorders, headaches, vomiting, and abdominal cramps, which are obviously occurring at this time.

So Zhu Yunhuan specially selected a lucky death row prisoner who was guilty of the most heinous crimes.

Hear this sound.

Everyone couldn't help but turn their heads in unison to look at the death row prisoner who was holding his head and almost twisting like a maggot on the ground. He then became crazy until his life force was exhausted and he fell into a coma... A chill ran down their spines.

"Shit! It's really poisonous!"

"Fortunately, I'm poor, haven't made many pills, and haven't eaten much either."

"The decision of our ancestors to gradually shift from external alchemy to internal alchemy was truly wise and great! Fortunately, although I can make elixirs, I mainly practice internal alchemy."

"I didn't take too many elixirs, but I didn't take too few either. Will I be okay?"

"..."

Seeing this scene, everyone felt like a thousand horses were galloping through their hearts. Some people began to worry about themselves. Those who practiced Zhengyi and Quanzhen, which had already focused more on inner alchemy practice, were filled with fear.

After so many years of refining elixirs, are they lucky enough not to die?

Zhu Yunhuan remained calm and composed, neither sad nor happy. He calmly called for someone to come and carry the condemned prisoner out, calmly tapped the blackboard, and said calmly, "Next, let's start talking about the nature of this change."

After experiencing this and that again, everyone couldn't bear it any longer.

Before Zhu Yunheng finished speaking, everyone had already turned their heads and stared at the piece of rice paper with strange words drawn on it on the wooden board, eager to learn and very serious.

Zhu Yunhuan raised his eyebrows in satisfaction.

After shattering the original cognition and system of this group of people, the next step is to slowly instill the junior high and high school course knowledge into them.

"First, there are the changes and properties of matter..."

……

The words are divided into two parts.

After introducing many concepts such as microscopic concepts, mathematical concepts, physics, etc., Zhu Yunhuan also opened a beginning for the introduction of chemistry and modern chemical engineering concepts, and started a small chemistry class.

Beiping Prefecture, thousands of miles away.

But something happened that seemed ordinary but was extremely unusual.

The south gate of Beiping Prefecture, the city gate.

"Huang Shiliu...Yingtian Prefecture is a thousand miles away from Beiping Prefecture. What are you, a farmer, doing here from so far away?" The soldiers guarding the gate were interrogating two people who were wearing coarse linen clothes and had their hands in their sleeves entering the city from other places.

Ever since Zhu Di and Monk Daoyan communicated with each other and reached an open consensus, Zhu Di naturally became more cautious and made preparations early, and the inspections of people entering and leaving Beiping Prefecture were much stricter.

The people being questioned at this moment were naturally Huang Shiliu who came all the way from Yingtian Prefecture, the deceased Hongwu Emperor Zhu Yuanzhang, and the accompanying Jinyiwei Lu Wei.

About two months passed.

They walked and sightseeed along the way, and deliberately arrived in Peking before winter set in.

Facing the interrogation, Zhu Yuanzhang remained calm and composed. He smiled and began to tell lies in all seriousness: "My maid married far away. Now that we have some free time after the autumn harvest, I came to Beiping to see her, hehehe."

He used to be a farmer, so he can be said to be playing the role in his true character. Moreover, his identity seal and travel pass are all authentic, so naturally there are no flaws.

The guard at the city gate looked them up and down without any suspicion. He was silent for a moment until Lu Wei took out a dozen copper coins and stuffed them into his hand. Only then did he let them in smoothly.

Zhu Yuanzhang and Lu Wei entered Beiping Prefecture one after another.

We walked a long way.

Zhu Yuanzhang's face darkened slightly. "Even a peasant like us has to squeeze a few copper coins. Is this how the fourth son of the family rules?"