After thinking about it, I think it's wrong. Arsenic trioxide is nicknamed arsenic. Although it is really highly toxic, it has really poisoned many people. But after all, he had eaten one just now. Not only did he have nothing wrong, but he really cured his meridians.

"It's strange that arsenic is so poisonous. I'm OK after eating it? How did they get rid of the toxicity of arsenic? Don't tell me, it's the effect of yellow in the dog."

"Eh? Smell it carefully. Besides arsenic, there seems to be another pungent smell mixed in it. I'll think about it..."

"Ma Dan! This is gunpowder!"

What are the things refined by Qingyu mountain medicine refining group? Forget arsenic. Is gunpowder for people to eat? This thing will kill you, okay? Well, it seems that arsenic will kill people.

Anyway, if you eat the gunpowder, not only will the dead die, but maybe the dead will be blown up.

Lu Xing now had an idea. He immediately thought of visiting the chassis of the medicine refining group to see how they were refining medicine all day.

He stayed up all night until noon the next day, when the elder martial brother came to deliver dinner, he appeared in the deep bamboo forest outside.

Lu Xing quickly shouted, "senior brother!"

The elder martial brother opened a corner of the array, quickly drilled in and scolded, "how did you get out? Your meridians have not been repaired. Be careful to leave sequelae."

Lu Xing said, "elder martial brother, the medicine you gave is really effective!"

"Of course, our Qingyu mountain medicine refining group..."

"Eldest martial brother!" before the eldest martial brother finished, Lu Xing immediately said, "I can't repay the kindness of saving my life. I want to go to the medicine refining group to thank them face to face. I have nothing to take, so I have to thank them myself."

"Don't forget the well digger. Younger martial brother, I'm so moved by your heart. But your meridians..."

"It's all right. Let's go and say thanks. We'll be back soon after thanks. It doesn't affect my isolation."

"But the master told me..."

"We'll be back right away. It doesn't affect my progress in closing. How can master know?"

"Well, let's just go for a while. Don't lie to me."

"I won't lie to anyone. Don't worry, senior brother."

It's convenient to have a private plane. The elder martial brother stepped on the flying sword and took Lu Xing to the mountain where the medicine refining group is located. Each refining site in Qingyu mountain is placed on a separate mountain peak.

The peak where the medicine refining group is located is called Cuiyun mountain. Because the mountain is full of herbs, there is a green scenery everywhere.

When he came to the hall of Cuiyun mountain, the leader of the refining group came out to meet him and said with a smile, "elder martial brother, it really makes Cuiyun mountain shine."

Brother Master said, "I was just entrusted by Lu Xing to bring him here to thank you."

"Lu Xing?" the leader of the refining group wondered, "is it the new closing disciple of the leader? I remember he didn't communicate with the refining group. Why did he suddenly come to thank you?"

Lu Xing said, "Hello, I'm Lu Xing. I felt refreshed after taking your refined pill at the latest, and my serious illness was cured. So I came to thank you today."

"I see." the group leader said, "they are all brothers of the same school. You don't have to be so outsider."

Lu Xing took the opportunity to say, "I'm curious about the pill you refined. Can you let me visit it?"

Brother Master said, "Lu Xing, you are still closed. Our time is limited."

Lu Xing said, "elder martial brother, just watch for a while. Our Qingyu mountain medicine refining group is famous. It's said that even the pills in the temple can't compare with ours. I've admired it for a long time. Just watch for a while and don't delay closing the door."

As a person, he was afraid of being praised. After listening to Lu Xing's words, the drug refining team leader felt comfortable from his back to his head. He quickly said, "elder martial brother, since you are here, let me do my best as a host."

"But..."

"Elder martial brother," Lu Xing hurriedly said, "the group leader warmly invited us. If we don't go, won't it hurt his heart?"

The elder martial brother hesitated again and again, finally nodded and promised, "well, just watch it for a while. After reading it, we'll go back and shut up."

"I see. There will be no delay."

Under the leadership of the medicine refining team leader, the three soon came to the backyard of Cuiyun mountain.

More than a dozen two person high copper furnaces were placed on the square. Next to each copper furnace, two inner disciples sat alternately heating the copper furnace with Lingli.

The lowest accomplishments of these inner disciples are in the middle of blood practice, and several of them have reached the early state of condensing deficiency. All the disciples were concentrating on refining medicine. Even if they saw the three coming, they didn't dare to say hello.

The team leader took them to an idle copper furnace and introduced the usage of the copper furnace to them.

"These copper furnaces are the alchemy furnaces of our medicine refining group. When refining medicine, two disciples use spiritual power to heat it alternately, and then one disciple puts the medicinal materials into it on time."

The medicine refining team leader said, "the secret to refining pills is the time to put the herbs in. This is the most difficult to control and needs experience very much. I don't blow it. The experience of our medicine refining team can't be compared with that of ordinary people."

Lu Xing looked around while listening. Sure enough, he found gunpowder in a corner of the yard. Piles of gunpowder were quickly piled into a hill.

Are these people crazy? It's all right. Put a lot of gunpowder in the yard.

Lu Xing pointed to the gunpowder and asked, "excuse me, what are those?"

"Nothing. It's just rubbish."

"Garbage?" they call it garbage?

The group leader explained: "in the process of refining medicine, waste pills are often refined due to improper control. After being put on the ground for a long time, the waste pills will slowly turn black and become these things. These waste pills are easy to catch fire and lose their efficacy. They can't be used again, so they have to be thrown away at regular intervals."

Lu Xing said, "can I go and have a look?"

"Go, be careful."

Lu Xing is looking for these gunpowder. He went over and grabbed a handful of gunpowder in his hand. Then he dug another handful of soil, kneaded it into a ball, and hid the gunpowder in the ball.

Then he tore a cloth from his clothes, wrapped it with a layer of gunpowder and inserted it into the hole of the earth ball.

"What's Lu Xing doing?" said nahan, the refining team leader

Brother master shook his head and said, "I don't know. Does he also want to refine medicine?"

"Don't be kidding. If this could refine medicine, our medicine refining group would have been dissolved long ago. What does he want to do? Why did he pull out all his swords? Lying in the trough, he wants to make a fire!"

The group leader was so frightened that his soul almost flew out of his body. He rushed forward, grabbed Lu Xing's wrist and shouted, "are you crazy? There are waste pills next to him. What should I do if they burn?"

Lu Xing had lit the lead and was about to throw the earth ball out. As soon as the team leader interrupted, the earth ball rolled away along his feet.

The group leader loosened his breath and said, "you boy, be careful to play with fire and burn yourself!"

The team leader was about to go over and stamp out the fire on the lead wire of the earth ball. Suddenly, the earth ball exploded with a bang, which scared the team leader to step empty and fall to the ground.