Ancient wizards return to Hogwarts.

After Rice and the other two entered, the entire office was packed like a can of sardines. Rice could not see Rowena at all, and could only hear her voice from the front.

"Alchemy, literally speaking, is the art of refining gold." Rowena spoke to the students as if she didn't notice the crowded office.

She started directly with the origins of alchemy.

"The ultimate alchemist's goal was to transform common metals - some alchemists chose plants - into gold or silver and create a 'miracle potion' that was said to cure all diseases and extend life indefinitely.

This knowledge existed long before the birth of magic, and it originated from the ancient humans' desire for wealth and life. The birth of magic gave alchemy a mystical meaning, making it no longer a knowledge of burning stones. But don't underestimate burning stones, it is the predecessor of what Muggles call "chemistry."

One of the students who knew more about alchemy couldn't help asking, "Professor Arius, are you referring to the Philosopher's Stone?"

"That's right! Although before Nicolas Flamel successfully refined the Philosopher's Stone, alchemists of all generations claimed to have successfully refined the 'Philosopher's Stone', their creations all had more or less flaws and deficiencies, and many people's creations were simply clumsy tricks. Some people simply did not use the knowledge of alchemy, but instead relied on the power of gods. These were not the real Philosopher's Stone. Until the appearance of Nicolas Flamel, he successfully refined the Philosopher's Stone that best met the requirements of alchemists, which is what you call the Philosopher's Stone."

At this point, Rowena's mouth curled up a little: She wanted to thank Salazar, because it was he who gave her a small piece of the Philosopher's Stone, allowing her to glimpse the ultimate of alchemy. She also gained great inspiration and enlightenment from it, and her alchemy level also improved by leaps and bounds to the current level of success.

If she wanted, she could create a replica of the Philosopher's Stone that was similar in effect to Nicolas Flamel's Philosopher's Stone.

"I also know a little about alchemy. Fortunately, I was lucky enough to push open the heavy door of knowledge and see the tip of the iceberg." After answering the students' questions, Rowena continued her class.

"My pursuit of alchemy is different from that of ordinary alchemists. You cannot learn how to refine ordinary iron into gold from me, nor can you achieve the goal of immortality through alchemy. I can only teach you how to make some practical gadgets."

Professor Arius' words did not disappoint the students, because everyone knew that the Philosopher's Stone was not something that ordinary people could make. Throughout the history of magic, wasn't Nicolas Flamel the only one who succeeded?

So even if Professor Arius said she could teach them how to make the Philosopher's Stone and took out a box of Philosopher's Stone on the spot, they still didn't believe they could learn such advanced operations. But "practical gadgets" were different, which they could really learn and use.

As a result, the students became more alert and pricked up their ears, afraid of missing a word.

"Children, do you think it's a bit crowded here and not suitable for class?" Rowena suddenly asked this question.

"Yes!" Les' voice was particularly loud. He and the Greengrass sisters, who came in last, were already squeezed into the corner. Not to mention finding a place to sit, even the standing posture was particularly awkward. Daphne even used the innovative flying magic to float about a foot above the ground to get more space and see the teacher's face clearly.

"Then come over here, I'll take you to a spacious place to study." She motioned for the students to follow her to the side of the platform, where there stood a small round arch.

Rowena said to a senior Hufflepuff student standing next to her, "Get in."

Senior students: ???

"Professor, this seems a little small..." he said weakly.

"Don't worry about it. Just go through the archway." Rowena's tone left no room for doubt.

The senior student had no choice but to do as he was told, but when he stood in front of the arch he found that it was getting bigger and bigger.

The arch, which was originally only palm-high, gradually became as big as half his body, then became the same height as him, and finally became three times the size of his body.

“This…” The senior students were stunned.

Then he soon discovered that it was not the arch that had grown bigger, but his body that had shrunk, and he had become a little man about an inch tall!

When he turned around, Professor Arius stood behind him like a mountain, almost as high as the "sun" above his head. Looking around, his classmates also turned into giants, surrounding him like endless mountains.

"A little trick of space magic. Next one, hurry up." Rowena saw the surprised faces of the people around her and couldn't help but smile from the bottom of her heart. She urged the students to hurry up and get on the platform.

I have to say, Rowena's operation even amazed Rice.

He knew that Rowena had been tinkering with the clay figures out of boredom in the dungeon a few days ago, but he didn't expect that she had developed the spell to such an extent.

Shrinking a person and stuffing him into a sandbox, she was the one who came up with this idea! This meant that Rowena had made another breakthrough in space magic.

The students lined up to enter the platform one by one, and soon it was Rice's turn.

"How about it? This spell." Rowena looked at Les and couldn't help showing off.

"It's amazing." Rice exclaimed from the bottom of his heart: "It seems that this year's championship depends on this spell?"

"Keep it a secret." Rowena was very tight-lipped and was unwilling to reveal even a little information.

But Les was sure that she would definitely use this spell this year, otherwise she would not be Rowena.

After entering the platform like everyone else, Rice looked at the platform made by Rowena.

Various plants are lush and green, and you can even hear the chirping of insects and birds in the woods. Not far from the entrance is a magnificent castle and a matching garden. Obviously, that is Rowena's residence.

Looking at everything in front of him, Rice remembered Rowena's previous masterpiece, the biological crystal ball. She put a forest into the crystal ball, making it a world of its own. Now she applied this technology here. This platform is nothing more than an open crystal ball, but the shock it brings is completely different.

Rowena followed in at the end.

She waved her hand, signaling everyone to follow her steps.

Rowena led the students into the castle garden, where she chose a fig tree and sat on the ground under its shade. The students followed her example and sat on the ground with her.

"This is also a form of alchemy. This is the alchemy I pursue - creating life." Rowena said the unusual words in a calm tone.

Les:! ! !

He was shocked by Rowena: Could it be that all the trees here were created by Rowena using alchemy?

He looked around quickly, and was surprised to find that Rowena did not seem to be bragging, and many of the plants in the garden were created by magic.

For example, the grass on the ground in front of him, if you look closely, most of the grass looks the same, as if it was carved out of the same mold, and it also contains a faint but very pure magic power.

That's the power of magic.

"Of course, sometimes to save trouble I will shrink real animals and plants and move them in. For example, this fig tree is one I transplanted from outside." Rowena raised her hand, and a few ripe figs fell into her hand.

"The water is as clear as spring water!" She simply washed the fruit, peeled it and started enjoying it.

"Professor, isn't this the power of Transfiguration?" Hermione raised her hand and expressed her confusion and puzzlement to Professor Arius.

Rowena seemed particularly patient in response to questions from her chosen students.

"Ms. Granger, in terms of form, they may be somewhat similar to Transfiguration, but not entirely." Rowena pulled up a blade of grass from the ground.

"You see, if it's Transfiguration, after such damage, the object itself will most likely disintegrate and return to its original appearance. This is the characteristic of Transfiguration: when the damage sustained by the object itself exceeds the upper limit of what the spell can withstand, the spell will be ineffective, but alchemy is different." Rowena conjured up a small cyclone and rolled the weed in her hand into pieces.

The weeds turned into grass clippings and fell to the ground, but they did not disappear.

"This is an alchemical creation transformed from elements. If destroyed, it will gradually disintegrate, but it will not disappear immediately like transfiguration. In other words, the things here are edible." Rowena gave the simplest and easiest to understand example.

Unless the food created by Transfiguration is edible in its original state, it cannot be eaten. After eating, the spell is lifted and the object returns to its original state, which may cause extremely uncontrollable damage to the stomach and intestines. However, things created by alchemy are different. They can be eaten, and they will eventually return to their original energy elements in the stomach and intestines.

"Alchemy is an ancient science that involves studying the composition, structure, and magical properties of four basic elements, as well as the transmutation of matter. By controlling the proportions among them, you can refine what you want." Rowena closed her eyes, and after a few seconds, the empty hole in the ground was occupied by a newly grown grass.

"This subject is very interesting. You have to find the balance among the four elements and then create new items." Rowena stretched out her hand and wrote the four words [wind], [earth], [fire] and [water] on the ground in order.

"Today I will teach you some basic principles of alchemy, and then we will start from the simplest place."

"Are we going to practice growing a grass?" a senior student asked eagerly.

"Of course not." Rowena rolled her eyes at him.

"Don't underestimate this blade of grass. If you can create one by the time you graduate, you'll be considered successful. Today we are studying the simplest classification of elements, which does not involve the life level at all."

As she spoke, Rowena took out dozens of substances, gave each student a pile, and asked the students to classify them by themselves.

"Put the single elements together, and label what elements they are if they contain multiple elements. If you don't understand something, discuss it with your classmates first. If you can't come to a conclusion, come and ask me." After explaining the content of this lesson, Rowena leaned against the fig tree and began to read a book.

Rice took a look at the substances he had been assigned and sorted them all out in a few minutes. Then he picked a herb created by alchemy from the ground and began to study it.

"The combination of water and soil... Does this grass have the ability to reproduce?" Rice took the grass in his hand and looked at it over and over again.

Then his eyes focused: he noticed that the magic power attached to the grass was expanding at a very small amplitude, which meant that the grass could absorb energy on its own. When the energy was absorbed to a certain extent, it would grow bigger and even split into a second grass.

In order to verify his guess, Rice began to look carefully at the surrounding plants, and then he really found something that could prove his guess: next to a larger wild flower there was a small flower that looked exactly the same as the big flower, except that it was smaller.

"It's amazing," Rice sighed in his heart. The small world created by Rowena can already circulate on its own.

He spent the entire next class studying Rowena's manor, from which he gained a lot of alchemical inspiration.

The bell for the end of get out of class rang from outside. Rowena stood up, quickly corrected a few mistakes made by the students, and then announced the end of get out of class.

"How is it?" Rowena asked him specifically before Les left.

"Great." Les' response was simple, but it made Rowena smile.

"Let's make a deal." Rowena called Les while the other students had left.

Les:?

"I heard that you have the Resurrection Stone, one of the Three Deathly Hallows. Lend it to me for research. I will share my experience in alchemy with you. There are many ready-made recipes in it. You can 'mix' them according to the proportions to refine the same items. You should understand what I mean."

Rice naturally knew what Rowena was talking about.

Rowena's life alchemy is somewhat similar to potion making, and alchemy is completed by adjusting the ratio of the four elements of water, fire, wind, and earth. So as long as he gets the specific formula, he can really imitate the life that Rowena successfully refined before.

"Don't break it." Feeling that this was a good deal, Rice took out the Resurrection Stone and handed it to Rowena, who then handed a booklet to Rice.

"You can leave now." After succeeding, she ordered Les to leave without hesitation.

After Les left, Rowena couldn't wait to circle the Resurrection Stone in her palm three times. A gust of hot wind blew by, and a familiar voice sounded in the woods.

"You guys are really never going to stop, are you?!" Godric's shadow appeared in front of Rowena.

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Update is here. Good night~