The stout boy was carrying a small and bulging flax bag, which he had obviously not strengthened as much as Dudian, and it was hard to carry it on his shoulders, and he was so tired that he gasped for breath after walking for long. Pen & Fun & Pavilion www.biquge.info

Dudian's vision is more than three times that of ordinary people, and he follows far behind, without worrying about being noticed.

"At his age, he should only be an alchemy apprentice, but I don't know if he uses it himself, or helps his teacher come out to buy alchemy raw materials." Dudian had a bit of thought in his eyes, and at this moment, the stout boy stopped a carriage at the intersection and left in the carriage.

Du Di'an's face changed slightly, and he hurriedly followed.

In this lively and prosperous area, the speed of the carriage is not fast, Du Dian trotted far behind with a flax bag on his back, the strengthened body and three years of training day after day, so that his endurance is far beyond ordinary people, after following seven or eight streets in a row, Du Dian felt panting, when he was about to hire a carriage to follow, suddenly saw the carriage in front of him stop.

Dudian hurriedly stopped, only to see the stout boy jump out of the carriage, turn around and pay the copper coin, and then enter the alley by the side of the road.

Du Dian immediately walked over, pretending to pass by, and turned his head to look into the alley, which he couldn't help but be stunned to see that the alley was a dead end, and it was blocked by a wall, and the strong boy disappeared into the alley.

What the hell?

Du Dian raised his eyebrows slightly, after all, he was a person who was influenced by science, so he naturally would not believe that there would be the kind of magic in fairy tales in reality, so he entered the alley and looked carefully on the ground.

This sealed alley, apparently rarely entered, was dusty, and there were several buckets of garbage piled up at the entrance of the alley, and because of this, Dudian's enhanced keen vision immediately saw the traces of trampled footprints in the dust on the ground, and this trace spread all the way forward, stopping at a wall in the middle of the alley.

Du Di'an's eyes flashed, he came to the wall and took a closer look, and couldn't help but be stunned, only to see that this was the wall, it was clearly a piece of cloth painted the same color as the wall, if you didn't look carefully, you couldn't tell it at all.

"This kind of hidden trick is really an alchemy apprentice." Dudian reached out and touched it, but saw that the back of the fabric was hard, most likely with some kind of stone, so it would not be dented and exposed by rats or wind.

Dudian made a secret note of the place, turned and exited the alley. Obviously, this is an alchemist's stronghold, and if he reports it to the Holy See of Light, he will immediately receive a lot of merit as a scavenger. However, he has no interest in doing such a thing, on the contrary, he is ready to blend into the small circle of this stronghold and learn about the alchemists of this world.

After all, all he knew about alchemists came from Rosyard's notes, and although there were many things recorded on it, many of them were information that only high-level alchemists had mastered, and there were fewer records of basic nature.

However, if you want to join the circle of alchemists, you must become an alchemist.

And the first step of the alchemist's proof is a black tattoo.

Dudian hadn't thought about getting a tattoo on himself for the time being, and he wasn't ready to join the alchemist's circle so soon, after all, according to Roseyard's records, the alchemist's circle all communicated in another capacity, and the purpose of doing so was to worry that if one of them was exposed, he would be arrested by the Knight of Light, and tortured to confess to others.

"I'll wait until I get back from outside the giant wall to officially consider this." Dudian glanced at the alley, turned to the junction, stopped the carriage, and went to the slums, he learned a lesson from an early age, and did many things at the same time, affecting efficiency.

Soon, the carriage came to the boundary wall of the slum, Du Dian jumped out of the carriage, back to the long-lost slum, as soon as he approached, the strong smell in the air made him frown slightly, there was a trace of helplessness in his heart, he could only endure this strange smell, follow the path, came to a more remote place, and found a dilapidated small hotel to rent.

In the hotel room, Du Dian took out a few raw materials in the flax bag, the first step was to refine the sulfur ore from the sulfur, he was going to use the most primitive refining method, using high temperature to heat the sulfur ore, dissolve it, take the upper layer of sulfur solution for cooling, that is, sulfur, and then use the stone wheel to grind into sulfur powder.

Dudian asked the innkeeper for a brazier, although it was the rainy season at the moment, and it was a little strange to ask for a brazier for warmth, but under the copper coins given by Dudian, the innkeeper was still very happy to agree, and when he took out the dusty brazier in the warehouse, he gave him a few pieces of coal.

When Dudian returned to his room, he locked the door with his backhand, lit the fire with the fire sickle given by the innkeeper, burned the coals, and then built the sulphur mine on top of it, and after burning for a while, the fire was too weak, so Dudian simply bought a large bag of coal from the innkeeper.

The melting point of the sulfur was not high, and it melted quickly, and Dudian took out the utensils he had purchased in advance and began to hold the sulfur solution.

The room was filled with the strange smell of sulfur, and Du Dian was secretly glad that he had been prepared and put on the mask, which did not seem to disappear with the technological fault due to nuclear radiation, and had always appeared in people's lives.

It has to be said that different environments promote different developments.

Dudian thought that it would be good to get a gas mask like Rosyad in the future, for alchemists, who often deal with all kinds of substances, it is inevitable that they will ingest some toxic substances, and the effect of masks is minimal, and it is only used by alchemy apprentices.

By evening, Dudian had finally finished grinding the sulphur powder and fire nitrate, and as for the charcoal, he was ready to go back and make it himself, which was simple.

"I didn't expect it to be so tiring to make one of the oldest black powders." Du Dian looked at his coal-stained clothes, smiled bitterly, and suddenly longed for the day when he could have an alchemy room of his own.

"I hope that this time I can make a lot of money outside the giant wall!" Du Dian wiped the ashes from his face, and his fighting spirit was high.

……

……

In the blink of an eye, seven days passed.

The night before the mission, Dudian said goodbye to the Jura couple, and under their watchful eyes, he got into the black carriage sent by the Mellon Consortium Scavenger Headquarters, returned to the business district, and lived in the old castle again, along with Macon, the others, and the other scavengers who graduated together.

"I heard that we will leave early tomorrow morning." Macon excitedly said, "I can go outside the wall tomorrow, I wanted to see it when I was a child, but I was frightened by the terrible stories they told." ”

"You better save it, although the outside of the giant wall is not as terrible as they say, it is definitely dangerous." Zachi said.

Sham smiled slightly, looked at the things that Dudian put on the side of the bed, and said, "Dean, what is this you brought?" ”

"Toys." Du Dian said casually, glancing at the black fire explosive tube he had made in the past seven days, thinking that it was impossible not to let it be carried when packaged like this.

……

……

I saw someone ask why it was all magical names, let me explain, the first is that it involves the background layout, and the second is that the early atmosphere is not suitable for Chinese names, such as Lin Chao is an alchemist, Yang Xuan is a knight of light, it looks against the overall painting style, and the third is that there is an Eastern Continent volume in the back, the world background is very large, and there will be surprises if you look at it patiently.