The Last Alchemist

After buying a lot of ore, Rosen, Veronica, and Mobius returned to the Prancing Horse Mansion together.

After arriving at the Prancing Horse Mansion, the servants in the mansion looked at Mobius strangely. They couldn't figure it out. Rosen had a big fight with this guy a few days ago, so why did they make up today?

It can only be said that the world of rich people is strange.

Rosen naturally didn't care about the servants' thoughts. He instructed the servants to move the purchased ore into the alchemy room one by one. As for the pile of magnetite, Rosen also had it moved to the alchemy room, and then piled it up in the corner at will.

He didn't even look at it during the whole process.

After the ore was moved, he closed the door of the alchemy room and said to Mobius: "I'll start working now."

"I'll wait and see." Mobius was looking forward to it.

Rosen first picked up the duralumin stone, put it in an iron trough, and then picked up a big hammer and started smashing it.

He had been smashing for less than two minutes when Veronica couldn't stand it anymore and took the hammer: "Let me do it."

"Vinnie, you're so nice." Rosen smiled and handed the hammer over.

Veronica looked at him with contempt: "I just want to see how you use these ores to make strong light."

Mobius was curious: "Strong light?"

Rosen did not hide it: "Today, the City Hall issued a bounty for the murderer, with a bounty of 5,000 gold dragon coins. After investigation, we found that the murderer was a shadow demon. And to deal with the shadow demon, we need to use strong light to break his advantage."

"Strong light? Ore?" Mobius became more and more confused as he listened: "I still don't understand. It's true that you use strong light to deal with the shadow demon, but as far as I know, to get strong light in the dark, it is either the 4-star flame magic "Magic Light" or the "God Light Skyfall" of the Flame God Cult. How can these magics have nothing to do with ores?"

Rosen was also confused. He has been focusing on creating various alchemical equipment in the game, and the monsters he hunts usually don't use magic. So in the end, he only knows some low-level magic, and as for four-star magic such as Magic Light and God Light Skyfall, he is completely blind. Not to mention the principle of magic, he had never even heard of its name.

He could only say: "My method is a little different from others. Oh, you will know it when the time comes."

"Well, Veronica said you are a genius in alchemy, I will see your ability today."

On the other side, Veronica smashed the diaspore into pieces in two or three strokes.

Rosen poured the stone powder out of the iron trough and put it all into a large pottery jar, then walked to the corner of the room, picked up a large jar of liquid as transparent as water, poured it into the pottery jar, and then began to stir.

As he stirred, the diaspore disappeared little by little, and finally disappeared completely, just like white salt melting into water.

"You are pouring acid, right?" Mobius was still very knowledgeable, and his 100 years of research were not in vain.

Rosen nodded: "It's acid. To be precise, it's sulfuric acid purified from griffin acid, with a concentration of about 30%."

Mobius nodded repeatedly: "I've thought of your method. However, dark silver ore can indeed be melted into sulfuric acid, but I still can't find a way to get dark silver out of the acid."

Rosen chuckled: "Of course, ordinary methods are difficult to do, but I have alchemical magic."

"."Mobius rolled his eyes: "Do you really think I don't know anything? Dark silver can be fished out of acid simply by relying on alchemical magic, and dark silver won't be so expensive. I asked several alchemists, and no one can do this!"

Rosen knew that Mobius was right. Aluminum is a metal with very active chemical properties. It is difficult to replace elemental aluminum from the electrolyte by ordinary chemical replacement methods. On Earth, electrolysis is used to obtain aluminum on a large scale.

"Of course it's not possible to fish it out directly. I have auxiliary means."

"Auxiliary means?" Mobius was stunned.

"I'll show you something."

Rosen stood up, walked to a corner of the room, and picked up an inconspicuous box in the corner. The box was very large, more than half a meter long and wide, and less than half a meter high. It looked like it was made of wood from the outside, with two little finger-sized metal joints extending from the left and right ends of the upper lid.

"What is this?" Mobius couldn't understand.

Veronica didn't know either, but she knew that Rosen had been tinkering with things in the alchemy room every day these days, and had also purchased various materials, spending hundreds of gold dragon coins on the material costs alone, so this box must have some magical use.

Rosen put the box next to the pottery jar with a clang, smiled at Mobius, and suggested: "Hold these two pieces of iron with your hands, and you will know what this is."

Mobius frowned and looked at the big box, feeling a little panicked. He squinted at Rosen: "You don't want to hurt me, do you?"

Rosen spread his hands: "What is there to be afraid of as an undead? If I really wanted to hurt you, why did I let you go a few days ago?"

"That's right, but I'm still a little nervous." Mobius was eager to try, but he didn't dare to pinch the iron pieces with his hands.

Rosen urged: "Try it, it's very comfortable, I guarantee you have never tasted this before. I can also guarantee that your body will never be hurt at all."

Mobius finally felt relieved after Rosen said so. He was also very curious in his heart. After thinking for a few seconds, he made up his mind: "Let's try it."

After saying that, he pinched the iron sheet on the big box with his left and right hands.

As soon as he pinched, Rosen immediately activated the alchemical power, controlled the air around Mobius's hand, and pressed Mobius' hand on the metal sheet.

In an instant, Mobius began to 'shake', his head shook, his shoulders, waist, hips, and legs were shaking at a high frequency, and his mouth made uncontrollable 'ah~ah~ah' sounds. After shouting for a while, he began to foam at the mouth.

Next to him, Veronica was puzzled at first and thought that Mobius was acting deliberately. After waiting for half a minute, she saw him shaking like a madman, and finally realized that something was wrong: "Rosen, what's wrong with him? He won't die from shaking like this, right?"

When Rosen saw that it was almost done, he released the air restraint, and Mobius' whole body 'jumped' back several meters away, and then lay on the ground shaking.

He kept shaking for several minutes before he slowly returned to normal.

What was strange was that after recovering, Mobius was not angry, but became extremely excited. He stood up, wiped the white foam from his mouth, and shouted at Rosen: "Was that the power of thunder and lightning just now?"

"How does it feel? Is it comfortable?" Rosen smiled evilly.

Mobius thought about it carefully, shook his head, and showed a trace of awe on his face: "It's a bit numb, a bit numb, not comfortable, nor painful. The only terrible thing is that my body is completely out of control."

Rosen patted the big box and said: "Congratulations, you are probably the first undead to be gently touched by thunder and lightning."

When he said this, Mobius and Veronica both looked at the big box, and awe appeared in their eyes at the same time.

"Is this the new thunder and lightning cage you built?" Veronica asked.

"Yes, this is a large lightning cage, which is a hundred times more powerful than a small one."

In fact, this thing is a large battery with an output voltage of about 40 volts, which is just enough to make people feel numb. Of course, if the electricity lasts for a long time, it will still kill people.

While talking, Rosen put on cowhide gloves and a cowhide robe, then took out a few iron wires, tied one side to the electrode, and tied a long graphite strip on the other side.

Then, he stood in front of the pottery jar, holding the graphite strip in both hands, activated the power of alchemy, and probed into the aluminum sulfate electrolyte.

"Mobius, look carefully, this is the power of lightning!"

Mobius immediately looked at the aluminum electrolyte in the pottery jar with great concentration.

At the same time, Rosen inserted the graphite electrode into the electrolyte.

In an instant, the solution boiled, and a large number of bubbles appeared in the two graphite electrodes, including hydrogen at the cathode and oxygen at the anode.

Without the interference of alchemical power, the electrolysis of aluminum sulfate solution is actually the electrolysis of water, but if alchemical power is added to interfere, the situation will be different.

Rosen concentrated his mind and set up an alchemical filter around the cathode of the electrolyte. The function of this filter is to only allow aluminum ions to pass through.

In this way, the electrons that should have belonged to hydrogen ions are obtained by aluminum ions. When aluminum ions obtain electrons, they precipitate into metallic aluminum at the cathode and solidify on the graphite electrode.

Mobius kept his eyes on the pottery jar. When he saw the white precipitate appear, he shouted excitedly: "It's out!"

Rosen ignored him and continued electrolysis.

About 20 minutes later, Rosen picked up the cathode graphite. On the outer layer of graphite, there was a thick layer of gray-white metal, which was pure metallic aluminum.

Mobius was a little confused: "It seems to be different from metal aluminum?"

"Because these aluminum structures are loose, they become tight after being melted at high temperature."

"Oh, that's it! With the help of lightning and alchemical magic, it is really clever to extract metal aluminum from aluminum acid liquid! It's just a pity that I don't have alchemical talent!" Mobius shook his head repeatedly, admiring and regretful.

Rosen smiled and said: "In fact, you have another electrolysis method that does not require the assistance of alchemical magic."

Mobius' eyes lit up: "How to do it?"

"Melt the dark silver ore into liquid and electrolyze it at high temperature."

Unexpectedly, after hearing this, the light in Mobius' eyes gradually dimmed. He shook his head slowly: "No, it's useless. I tried it, but the dark silver ore can't be burned at all!"

"Okay." Rosen knew that the melting point of aluminum oxide was over 3000 degrees, so it was naturally very difficult to melt it directly, but there was a way to reduce the melting point to about 1000 degrees, but he would not easily say this method.

Now that he had aluminum, he should extract magnesium from biotite.

It was still the same method, smashing the biotite, dissolving it into electrolyte with sulfuric acid, extracting pure magnesium sulfate solution with alchemical magic, and then interfering with electrolysis with alchemical power. In less than half an hour, Rosen got more than 10 kilograms of magnesium.

Mobius was stunned: "Is this the metal element in biotite?"

"It's just one of them."

Veronica was more concerned about the use: "But what does this have to do with strong light?"

Rosen smiled slightly and kept it a secret: "When I use it, you will know."

After that, he turned to Mobius and said: "Okay, my performance is over, and you got what you wanted. It's time to go back."

Mobius had nothing to say, but he was very disappointed. He clearly saw the process of extracting new metals with his own eyes, but he couldn't replicate it. There is nothing more sad than this.

However, he still gained something today. The biggest gain was that he knew about electrolysis, a new way to extract metals.

After a moment of silence, he pointed at the battery and said, "I want to buy one of these from you. How much is it?"

"1,000 gold dragon coins each."

Mobius' heart trembled: "Are you robbing?"

Rosen looked indifferent: "It's up to you if you want it!"

Mobius gritted his teeth and wanted to twist Rosen's head off and snatch the lightning cage next to him, but he also knew that if he did that, his life would really be over.

Finally, he gave in: "You are so cruel. I will buy it! But the magic power in this thing is limited. How can I charge it?"

Rosen smiled and said: "If you give me 5,000 gold dragon coins at one time, I can teach you how to make it. Don't worry, this thing does not require magic talent. As long as you know the method, you can make it. As long as you have gold dragon coins, you can make as much as you like."

Mobius' heart was pounding: "Is there really such a good thing?"

"I don't have to lie to you!"

"I only have more than 3,000 gold dragon coins on hand, can I have less?" Mobius pleaded.

"No, but I accept credit." Rosen stretched out his hand to Mobius: "Then, you must give me 3,000 gold dragon coins first, and then I can teach you the method."

"I will go back to get the money now!" Mobius admitted his defeat, glared at Rosen fiercely, turned around and walked away from the alchemy room quickly.

Veronica watched him leave until Mobius disappeared. She sighed and said, "I have known Mobius for decades. He has always been the one who doesn't buy into other people's accounts. I didn't expect that you would take advantage of him today."

Rosen glanced at the magnetite piled in the corner again and said sincerely, "In fact, Mobius is a good person."

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