When they rushed into the Yongkang City Gate, Zhang Mu saw the familiar streets, bathed in the sunset, quiet and comfortable.

couldn't help but make Zhang Mu feel that all this was a bit dreamy.

When I left Yongkang, I just wanted to participate in the imperial examination, but I didn't expect that in just two months, I would experience so much.

They take small paths along the way, so they don't worry about the ethereal being catching up with them at all.

Zhang Mu immediately took his subordinates and headed towards his mansion.

Several family members at the gate were still playing chess and chatting together, and when they saw Zhang Mu's shadow, someone went in to report immediately.

After a while, the old housekeeper took the family and waited at the door, and when Zhang Mu just arrived outside the gate, the old key hurriedly ordered the little guy to meet him.

Zhang Mu looked up at his mansion and said secretly in his heart: "Finally go home." ”

"Young Master, you can be regarded as back. These days, I can't hear from you anywhere. Some time ago, I said that you made a mistake, and everyone in the house was terrified ....... ”

Listening to Zhang Wenguang's chatter, Zhang Mu didn't know why, and suddenly felt more cordial.

"Pack out some guest rooms for them, these are my colleagues." Zhang Mu said with a smile.

Zhang Wenguang hurriedly went to get busy, and after Zhang Mu settled everyone, he went straight to the backyard.

Now the Tinghexuan in the backyard has become a separate courtyard, and Zhang Mu let the pine pattern be used as a soap base for soap.

I was going to use what I learned in my stomach to show off my ambitions, but I didn't expect that as soon as I stepped into the officialdom, everything seemed to be out of control.

I haven't seen it for a few months, but the pine grain is still the same as before, and it hasn't changed much.

When he saw Zhang Mu, he hurriedly greeted Zhang Mu.

Zhang Mu ordered him to take some soap and hurried back to his room.

After closing the door. The old housekeeper hurriedly came with the account book, and when he saw Zhang Mu, he hurriedly said: "Young master, you are not at home during this time, but the business at home is very prosperous. It's just that last month, suddenly a messenger from the county government came and seized all the business at home. ”

Zhang Mu knew that it must be because he had offended Wang Ming, so he waved his hand and smiled: "These things will be said later, did you get the Yunnan diatomaceous earth I asked you to get?" ”

Zhang Wenguang hurriedly nodded and said, "It's been here a long time ago, and it's been kept in the warehouse all the time." ”

"Get me some. I'm of great use. Zhang Mu said with a smile.

The old housekeeper hurriedly went to get it, Zhang Mu grabbed him and said, "Wait a minute, I'm afraid it won't be peaceful these days, you let everyone in the yard be careful." ”

The old butler was stunned for a moment, then understood what he meant, and hurried out.

After a while, the old housekeeper sent someone to bring diatomaceous earth, and Zhang Mu sat on the edge of the table and began to complete his bomb journey.

Make soap leftover leftovers inside. Glycerol can be extracted.

The sulfuric acid extracted from blue alum before is nitric acid after being soaked in saltpeter.

Glycerol soaked nitric acid is the nitric acid, 1 glycerate and 1 oil invented by Nobel that year.

This is because nitroglycerin is very unstable. If you shake it, it will explode, so it is basically unusable.

However, after the advent of diatomaceous earth. The situation is quite different.

Diatomaceous earth soaked in nitroglycerin is the famous yellow gunpowder - Dana explosive.

Zhang Mu then began to purify glycerin, but the process was limited. As long as it works, it's fine.

After having glycerin, Zhang Mu took these things to a warehouse in the backyard.

After asking the people to move all the things in the warehouse, Zhang Mu ordered people to block the backyard, and then wrapped several layers of quilts before entering the warehouse.

The most terrible thing in the whole process is that you only make 1 nitrate acid, 1 glycanity and 1 oil, although this thing is very powerful, but it is really not stable.

Nobel's younger brother was killed by this thing, and he couldn't joke.

Zhang Mu took a deep breath, then carefully poured glycerin into a ceramic basin, then lifted up the nitric acid and wiped the cold sweat on his forehead.

I felt that it was still unreliable, so I prepared a long bamboo pole and hung the bottle on it.

Standing at the gate, he slowly poured the nitric acid in the bottle into the glycerin little by little.

Glycerol reacts rapidly under the chemical action of nitric acid.

Zhang Mu waited cautiously at the door, and it was not until the next morning that he saw the glycerin in the ceramic basin completely dissolved from a distance.

The most dangerous step has finally been completed.

Zhang Mu leaned over cautiously, and then sprinkled the diatomaceous earth in his hand into the ceramic basin little by little.

Holding his breath, he waited for a long time before carefully retreating.

Then he ordered someone to guard the door and wait for the diatomaceous earth and nitroglycerin to react.

After a sleepless night, coupled with the rush for several days, Zhang Mu also felt sleepy, so he returned to his room and fell asleep groggyly.

I don't know when, I felt an itch on my face, so I opened my eyes tiredly, and the first thing that caught his eye was a cute face.

The long hair is combed into two whips, and the hair at the back is tied into a small bun, which is playful and cute.

A pair of blue eyes, as bright as sapphires, pure and flawless, just like the lake in late autumn, make people intoxicated.

On the round little face, two dimples will be revealed when you smile, and the teeth are both white, like braided shells.

The little girl looked at Zhang Mu stupidly, and when she saw Zhang Mu wake up, she shouted loudly: "Muguoguo, it's afternoon, and I sleep like a pig." I can't wake up when I shout at you. ”

Zhang Muwan smiled and said, "Qiao'er, why are you here?" ”

"Stingy, I don't know how to tell Qiao'er when I come back, if my father hadn't told me, I wouldn't have known." Qiao'er said angrily.

"Sir, here?" Zhang Mu hurriedly turned over and looked out the window, no, it was already afternoon.

Qiao'er obediently took Zhang Mu's shoes, put them on the ground and said, "Put them on, what good things did you bring to Qiao'er this time?" ”

Zhang Mu smiled: "I'll show you later." I'll go see the gentleman first. ”

After that, Zhang Mu put on his clothes, cleaned up, and followed Qiao'er towards the study.

Pushing open the door of the study, Wang Hongtai was looking at an ancient book intently, he hadn't seen him for a few months, but he was much more energetic than before.

Zhang Mu saluted him first, and then smiled: "When did Mr. come?" Why don't you let me wake me up? ”

"I heard this morning that more than ten batches of fast horses arrived in your house yesterday, and I was worried that something would happen in your house, so I took a look first. That's when I know you're back. Wang Hongtai said with a smile.

"I'm also going to go to your house to see you, is my sister in good health?" Zhang Mu asked with a smile.

"Everything's fine." Speaking of this, Wang Hongtai showed an embarrassed smile and said, "Qiao'er, you go out first, I have something to say to Muzhi." ”

Qiao'er stuck to Zhang Mu, waiting for the gift, where are you willing to go? However, when he saw his father's face blushing, he reluctantly made a grimace and ran out.

Zhang Mu looked at Wang Hongtai's expression and asked curiously, "Sir, what is the matter with me?" ”

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Went out for a drink and came back late. I'm sorry everyone. (To be continued......)