Magus Tech

On the other side, Richard didn't know what happened to the mine and Mullen after he left, but he took Gro and his party to the next target location.

To make cobalt blue, three materials are needed: cobalt ore, alumina and phosphoric acid.

Cobalt ore has been obtained, and phosphoric acid is already there, so the problem to be solved now is alumina.

Generally speaking, in the current medieval-like world, everything that is contaminated with metal aluminum is not very easy to get.The main reason is that because of the current technological limitations of the world, it is difficult to extract aluminum.Because of this, it was originally in the Blue Lion Kingdom that the experimental method was used to prepare ether rather than the industrial method catalyzed by aluminum.

However, aluminum oxide, as a compound that is bound to metal aluminum, belongs to a relatively different kind of existence.The scientific name of aluminum oxide is aluminum oxide (Al2O3). In the current world, it is undeniably rare and very precious.But it can be obtained directly by purchase through the simplest method.Because aluminum oxide has another name, called corundum, also known as ruby.

Yes, ruby.

...

Cuijin City, in a VIP room of a jewelry store.

Richard and Gro sit at the table, and the owner of the jewelry store, nearly sixty years old, is standing next to him respectfully, throwing one or two out of the door from time to time, slightly anxious.

"Da da da", in the long wait, the sound of shattered footsteps sounded, a jeweler's faithful steward, walked in with a black walnut box carefully, nodded at the jeweler's owner.

The owner of the jewelry store breathed a sigh of relief. He quickly took the box, turned around, and laid it on the table. When it opened, it revealed a huge ruby ​​inside.

Looking at Gro, the jeweler owner tentatively asked, "His Royal Highness Prince Glo, you see, this is the largest ruby ​​in our store. Does it meet your needs?"

Gro didn't say anything, just turned to look at Richard.

Richard glanced at the ruby ​​and nodded.

Gro looked at the owner of the jewelry store, and without any long talk, he immediately said, "Speak, how much, I want it."

"Ah, this..." The jewellery owner hesitated a little, and was troubled by the price.If the price is said to be high, I am afraid to offend the prince Gro, and if the price is said to be low, the store will lose money.

In this case……

For a long time, the owner of the jewelry store didn't come up with an idea.

Gro was impatient and urged: "How much is it?"

The owner of the jewellery shop had no choice but to make a daring offer.

"One hundred..." The owner of the jewelry shop tentatively fixed his eyes on Gro's expression. He wanted to say the price of more than a hundred gold coins, but when Gro's eyebrows were slightly wrinkled, he immediately swallowed the number behind the hundred. Going inside the belly, there was something stiff, "One hundred...amount, gold coins."

One hundred gold coins, which is the price of the huge ruby ​​in the box, is not expensive, but it is also a huge sum of money.

Richard looked at Gro.

Gro really was not wordy. With a wave of his hand, his guards opened the purse, ordered the gold coins and threw them to the jewelry store owner, then picked up the ruby ​​box and went out.

Bowing down to send Richard and Gro along, the owner of the jewelry shop walked back into the shop and couldn't help but wipe out a cold sweat.The price of ruby ​​sold for one hundred gold coins can only be said to be the cost price. Considering the storage fees in the store, it has already suffered some losses.But in the face of His Royal Highness Prince, he can only admit that he is unlucky, and hope to earn it from the rest.

The owner of the jewelry store thought about it. When he walked into the VIP room, he suddenly stiffened and saw a man in a black robe with his entire face hidden in a hood sitting in the VIP room, as if appearing out of thin air.

"you are……"

"I'm just a customer who buys things, don't be nervous." The black robe said quietly. "I came to your shop for a simple reason. I need to buy some low-level casting materials. Well, of course, in your There are only gems in my eyes."

"amount……"

"Bring all the gems in your shop, I will pick them."

"This..." The owner of the jewelry shop looked at the black robe and felt inexplicable pressure, which was greater than what he felt from Gro. He couldn't help but want to call people, but there was another voice in his heart telling him, It is best not to do this.

The black robe looked at him for a long time without movement, and reminded him: "My time is precious, you better hurry."

"Yeah, yes, yes." The owner of the jewelry store sang, pursed his lips, and finally walked out of the door a little bit complicated.

...

moment.

The tables in the VIP room were filled with wooden boxes of different sizes, all of which had been opened to reveal the gems of various colors inside.

The black robe looked at all the gems on the table, and finally chose a few of them slightly, and said to himself: "It is really a barren land, basically there is no use, and the use is also the quality Very bad, but it can only be so."

"The guest, how are you going to pay..." The owner of the jewelry shop uttered a sudden stop at the next moment, and saw the black robe turn around, revealing a face under his robes, and a pair of eyes glowing green. , Like two groups of ghost fire burning, looked at him straight, making him a bit creepy.

"Do you know, I wanted to kill you directly, this is the easiest way." The black robe said, his tone slightly eerie, but then the tone changed, "But... in view of your obedientness, I think it is still Your return."

Raising his hand, a purple light ball the size of a date appeared at the fingertips of the black robe and sent it to the forehead of the owner of the jewelry store.

The owner of the jewelry store was extremely frightened and wanted to run away, so frightened and wanted to shout.But it was found that the body was locked and could not run at all, the throat was terrible, and the voice could not be made, only to see the purple ball of light getting closer and closer to his forehead, and then submerged under the skin and entered In the body.

The moment the light sphere entered the body, the owner of the jewellery shop shook suddenly, only to feel the whole body suddenly warm, the brain was blank, and his eyes were confused and dull.

"I gave you the special energy that can prolong the life of two years. It should be fair for the purchase price of the casting materials." The black robe said, "Of course, there is a condition that you have to forget me, Forget everything I contacted. Just like that."

After speaking, the black robe's figure twisted sharply and disappeared into the VIP room like smoke.

For a long time, the owner of the jewelry store seemed to be awakened in his sleep, blinked and looked around, saw the various jewelry boxes opened on the table, his eyes widened, and he could not help shouting: "Come on, come on! Come soon!"

Soon, the faithful steward ran in, looked at the jewelry store owner, and asked, "Boss, what's wrong?"

"This..." The owner of the jewelry store pointed at the many boxes on the table with some trembling fingers, and asked, "What... what is going on here? These boxes should not be locked in warehouses and counters." Why did you come here?"

"Boss, didn't you let me take them in? Just now I asked you why, you didn't tell me why, how..."

"This..." The owner of the jewelry store froze, frowning deeply, and couldn't help rubbing his gray hair.After rubbing for a moment, he lowered his hand and suddenly found that a reddish brown hair was caught between his fingers.This is his hair color when he was young, but now...

The owner of the jewelry store was completely stunned.