The Last Alchemist

The wind roared in his ears, and the light and shadow in front of him changed rapidly, sometimes it was the sky, sometimes it was the ground, sometimes it was a house. Soon, Rosen was shaken so dizzy, everything in front of him was spinning, and he couldn't see anything clearly.

The only thing he knew was that he had been wandering around the town of Sunderland, but where exactly he was, he was completely confused.

‘What happened? Was I kidnapped by a monster? Or is Blood Rose looking for me? ’ Rosen’s mind was in a mess.

While he was thinking wildly, Rosen's vision suddenly went dark, and his head was covered by a black bag. He couldn't see anything and could only hear the whistling wind in his ears.

The strange situation lasted for about twenty seconds. The sound of wind in his ears stopped, the surrounding air was no longer as cold as late autumn, and a faint fragrance penetrated his nose.

‘There are not many thin alcohol molecules, glycerol molecules, and floral molecules, but they are very complex, including various alkenes and hydrocarbons. It is a very high-end perfume. I should be in a wealthy family's house in Sunderland. ’

‘Bangdang~’

The sound of closing windows.

‘Wow~’

The sound of fabric rubbing when the curtain is pulled.

After two sounds, the black cloth bag on Rosen's head was ripped off, and the dim candlelight entered Rosen's sight.

His eyes had adapted to the darkness, and the environment suddenly became brighter. He subconsciously squinted his eyes and reached out to block the candlelight.

After three or four seconds, Rosen's vision returned to normal. He turned around and found that he was in a gorgeously decorated room. The floor was very shiny and obviously waxed. There was a huge painting hanging on the wall on the left. On the right side of the picture of galloping horses is a wooden shelf with exquisite workmanship. Many bottles and cans are neatly placed on the shelf, which looks like an alchemist's material rack.

Just as Rosen was looking at the room layout, a woman's voice suddenly came from behind him: "Little guy, you look very calm."

Rosen was excited, and immediately turned around. He saw a large desk behind him. On the table were a large parchment scroll, a silver candlestick, an ink bottle, and some wooden rulers, compasses, and the like. Behind the desk, a The woman wearing gorgeous dark red leather armor leaned lazily on the chair, playing with a quill nonchalantly in her hand.

It turned out to be the girl in red whom I met in the tavern before!

Rosen's heart felt cold: 'It's over. This is definitely a high-level vampire. It's really over now. ’

At this moment, the red girl gently turned the quill in her hand, pointed the pen tip at Rosen, and said with a smile: "Introduce myself, my name is Veronica."

Rosen didn't quite understand the other party's intention, but he knew that high-level vampires loved to show off, and the other party must have made up his mind to tease him.

Although he knew it in his heart, he couldn't resist. The only way to survive now was to act with the other party and show off his tricks. Thinking like this, Rosen stretched out his hand to touch his chest and leaned forward slightly to salute: "Rosen. Lapra "

"Yes." Veronica nodded, then suddenly reached out and pulled out a piece of parchment from the table, then placed the quill next to the parchment and said, "I know, I took the liberty to bring you here. It’s a very rude thing, but I really can’t bear the curiosity in my heart.”

"Huh?" Rosen was a little confused. The situation seemed to be different from what he expected.

Veronica pushed the parchment in front of her in the direction of Rosen and explained: "It's about the explanation of the flight path of moths when they fly into the flame. I thought about it carefully and found that you only told part of the principle. I I want you to fill in the rest."

Rosen became more and more confused. He glanced at the parchment on the table. The content on it was exactly what he had left before, with equiangular rays and polyline patterns drawn on it. Although what he said about calling Veronica was very clear, was it a little too much to kidnap him just because of this matter?

Rosen spread his hands with a wry smile: "I live in this town. You can come to me at any time. Do you want to spend so much effort?"

Veronica nodded: "It's indeed a bit reckless, but I don't like going to crowded places."

"Then why did you go to the Pigeon Nest Tavern before?"

"Well~ That was not my intention, it was because of the invitation from an old friend. Before she left, she left me a few geometry problems, so I stayed a little longer."

"All right."

He was in a weak position, and the other party had already explained it to this point, so he had no choice but to accept it.

After walking to the desk and looking at the parchment, Rosen picked up the quill. Before he was about to write, he said, "How do you know I haven't finished writing?"

"Intuition. You appear to be very confident. I think relying solely on what you wrote is not enough to support your confidence." Veronica reached out and lightly tapped the lines on the parchment.

Rosen noticed that the skin of the girl in red's hands was very white and very delicate, just like the hands of a noble girl. She did not have the brute strength to jump up and down on the roof at all.

Now that he listened to what the other party said, it seemed that the other party was simply worried about a math problem and had nothing to do with organizations like Blood Rose.

‘She wanted something from me. Judging from her previous performance, her thinking is more rational and relatively cultivated. Such an existence shouldn't be like Viken, who would fall out if something doesn't go his way. ’

Rosen's mind immediately became active. He did not start writing, but instead played with the quill in his hand: "Ms. Veronica, you should know that the wisdom of geometry is endless, and these wisdoms are all mined out through hard work. "

Veronica frowned: "Geometry is pure wisdom, and using it for profit is a stain on geometry."

Rosen was stunned for a moment, not expecting the other party to say that, but then he remembered an allusion he had seen before.

By the way, in the ancient Greek period, mathematics was a completely metaphysical thinking game. A student once asked Pythagoras, what is the use of mathematics? As a result, Pythagoras turned around and said to his servants that this man actually wanted to make money through mathematics, so he gave him a silver coin and sent him away!

The Veronica in front of her probably had similar thoughts on geometry as Pythagoras in ancient Greece.

Rosen thought for a while and then said: "Of course what you said is correct. I also admit that geometry is pure and noble and should not be mixed with any worldly atmosphere. However, I am just a mortal, and I have to spend money to eat, drink and have sex. And I spend most of my time on geometry. If geometry doesn’t give me some rewards, I will starve to death.”

Veronica pondered for a while, and finally nodded: "What you said is the truth. So, what do you want? As long as it's not excessive, I will try my best to satisfy you."

Rosen was overjoyed and raised his hand to point at the wooden shelf filled with bottles and jars: "It seems to contain alchemical medicines. Are you an alchemist?"

Veronica shook her head: "I personally like alchemy very much and have studied it for a while. But unfortunately, without the talent for alchemy, when I study alchemy, I am like a blind man who broke into God's treasure house. I I didn’t like the feeling, so I finally gave up on those medicines, just to make up for the shortcomings in my heart.”

Rosen asked again: "Then you should be very familiar with alchemical medicines, right?"

Veronica nodded: "I basically know both the commonly used and not commonly used ones, and I also know their properties."

Rosen said: "Then, I hope to get some designated alchemical medicines in return."

"No problem, but one problem, you can only take one bottle!" Veronica agreed simply.

"4 bottles!"

"No, 1 bottle."

"3 bottles?"

"1 bottle! I won't say any more."

"Okay, just one bottle, deal."

After receiving the promise, Rosen began to write, but after drawing a line, he paused.

"What's wrong?" Veronica's eyebrows raised slightly, showing a trace of impatience.

Rosen asked: "Have you ever studied number theory?"

"Number theory? If you are talking about those stupid number games, then I have indeed studied it for a while." A trace of disgust flashed across Veronica's face.

"Uh~~~ He actually called number theory a stupid number game." Rosen was speechless.

Originally, he wanted to explain the constants of nature to Veronica, but since she hated it so much, he had to change his explanation.

"It seems that you like geometry?" Rosen asked.

Veronica nodded, raising her chin slightly, with a reserved and arrogant expression: "I have always believed that geometry contains the mysteries of nature. For example, a circle corresponds perfectly to the sun and moon in the sky."

Rosen understood, and after thinking about it, he drew a point again on the parchment, and then radiated rays at equal angles to the surroundings. The difference from before was that he had drawn 36 rays, and the angle between each two rays was only 10 degrees.

Veronica was stunned for a moment: "Another ray with equal angles?"

Rosen said nothing and continued painting.

After drawing the rays, he specially circled the gap between the two adjacent rays with a small circle, then raised his head and asked: "Let me ask you, if the angle between the two rays is very small, so small that there is only one circle. One thousandth, or even one ten thousandth, so within such a short distance, can they be regarded as approximately parallel?”

Veronica's slender eyebrows frowned. She stared at the drawing without blinking for more than ten minutes before she nodded with difficulty: "If the angle is really extremely small, it should be Is that possible?”

"very good."

Rosen drew a small circle in the middle of the ray, marking it as the moon, and the surrounding rays were marked as moonlight, and then asked: "The moon is very, very far away from us, so far away that it is unimaginable. Do you agree with this? ?”

"I agree." Veronica nodded.

Rosen continued: "But the moon is also glowing. At night, the glowing moon can be seen as a very distant fireball, right?"

"...Can you say that?" Veronica said uncertainly.

Rosen added: "Because the moon is too far away, when the moonlight shines on the ground, the angle between the moonlight between two points that are only 1 kilometer apart is very, very small, right?"

"Ah, is that so? Yes, you are right." Veronica nodded repeatedly.

Rosen immediately added: "Using the above assumption of approximate parallelism. On the ground, the moonlight at two points 1 kilometer or even 10 kilometers apart can be regarded as parallel to each other, right?"

"Uh~~~" Veronica sweated on her forehead. There were so many new ideas put forward by Rosen, one after another, that her thinking couldn't keep up. The only thing that was certain was that what she was facing now was a brand new geometric thought, a very wonderful thought.

This time, after a long time, Veronica nodded reluctantly: "You can say that."

Rosen drew a small flying insect between the adjacent rays and said with a smile: "We can think that under the moonlight, the flying insects are not flying in a straight line, but in a curve. The difference is that because the moonlight is almost parallel, the arc of this curve is very, very small, almost a straight line. As for the fire, because the distance is too close, the firelight is obviously radiant, so the trajectory of the flying insects has become a clear curve. Do you understand?"

"Uh~~ I understand it?" Veronica looked wooden, as if she had lost her soul.

Rosen continued: "So, we can conclude that the flying insects can fly at night, relying on the guidance of light. Now, the light has changed from moonlight to firelight, and the flying insects' flight trajectory is naturally seriously disturbed. Do you understand?"

"." Veronica's eyes were straight, staring blankly at the parchment scroll, without saying a word.

Well, it seems that she didn't understand.

Rosen took advantage of the situation: "Look, I've explained it clearly. Now, I'm going to get my reward, okay?"

"Wait~"

Veronica suddenly stretched out her hand and pressed on Rosen's shoulder.

Rosen felt a thousand-pound force on his shoulder, pressing him so hard that he couldn't move at all.

'Swish~'

Cold sweat broke out on his forehead: 'Could it be that she was acting before, and now she's ready to turn against me? '

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