Kyle had been to the principal's office many times, so he found the gargoyle statue easily and gave the password.

The statue jumped aside, revealing a passage behind it.

In the headmaster's office, Dumbledore was looking for something in front of the bookshelf. He turned around when he heard the door open.

"I really hope my invitation doesn't bother you." He said cheerfully, "But please wait a moment, I think I'm almost there... Oh, here it is."

Dumbledore pulled a thin book from the bookshelf?

"I think it's time to fulfill our previous agreement."

He smiled and said, "Remember? When we were in that cave, I promised to teach you a spell."

"Of course, I have never forgotten it." Kyle suddenly became excited, but then asked doubtfully: "But Professor, do you have time now? I mean...the Philosopher's Stone."

"Refine the Philosopher's Stone. This is destined to be a long process, Kyle." Dumbledore said, "After the preparations are completed, we can't help much. All we can do is wait patiently.

"This period of time is just right for me to fulfill my previous promise... I should have taught you when the school started, but I didn't expect it to be delayed until now. I think you must be getting impatient."

Kyle didn't say anything, which was considered as his agreement.

He was indeed waiting anxiously, but every time he saw Dumbledore in a hurry, he was too embarrassed to ask, especially after Nicolas Flamel came to the school.

"Excuse me for asking, why do you want to learn Vulcan's Way... well, that's the name of the spell." Dumbledore looked at Kyle, "Explore the secrets of the spell? Or pursue powerful magic?"

"Both." Kyle thought for a moment and said, "But mostly because of love and curiosity."

"Oh?" Dumbledore's expression changed slightly.

"To be honest, I don't lack powerful spells." Kyle sat down in the chair opposite Dumbledore, "For example, the Fiery Blaze."

There was a tinkling sound all around.

That came from the headmaster's portrait. They didn't seem to expect that there would be a student so bold as to admit in front of Dumbledore that he could do the dark arts.

The principals could no longer pretend to be asleep, so they gathered in the largest picture frame and whispered to each other.

But Dumbledore acted very calmly, as if Kyle had just said something very ordinary.

“Although I may seem arrogant when I say this…” Kyle also didn’t think there was anything wrong with it, and continued: “But I think I can already master and use this spell proficiently.

In terms of power and destructive force, I don't think there are many spells that can compare to Fiendfyre."

"Indeed." Dumbledore nodded in agreement.

The reason why Fiendfyre is not included in the list of Unforgivable Curses is only because it has the nemesis of All Curses Ending, not because it is not powerful enough.

"I thought you would say it was for self-preservation," said Dumbledore.

"That's also a reason," Kyle said, "but it's definitely not useful under normal circumstances. What I learned from the professor is enough."

Kyle recalled: "For example, in the first grade, Oren told me to carry a broom with me, which is a very practical way to protect myself.

"Also in second grade, Quirrell demonstrated the Fiery Blaze in front of me, and that's when I learned this spell.

"Although Lockhart from the third year was not very reliable, he did give me a notebook on the Oblivion spell. To some extent, this spell is quite powerful. It can directly make a person lose the ability to resist.

"The most important thing is that it is completely in compliance with Wizarding Law. As long as you don't steal other people's memories like Lockhart did, you can use it with confidence.

"Lupin in the fourth year... um... Professor Lupin..."

Kyle thought and thought, but couldn't remember what extra things Lupin taught him. The only Patronus Charm he already knew before school started.

"Well...he taught me how to identify werewolves." Kyle said vaguely.

"And Professor Moody from the fifth grade..."

Kyle was stuck again, because the Armor Spell was also something he already knew.

At this moment, Kyle suddenly realized that things seemed to be a little wrong.

This is not right...

Dumbledore seemed to have noticed this as well. He looked at Kyle, who was doubting his life, and shook his head with amusement. At the same time, he felt a little comforted inexplicably.

Although the Defense Against the Dark Arts professors he found each had their own problems, at least some people learned something really useful from them, which proved that his decision was not entirely wrong.

"Every wizard is curious and wants to explore more magic," Dumbledore said, "including me. This is normal."

"That's good," Kyle said.

"Actually, I'm just asking this question out of curiosity. No matter how you answer, I will teach you, because I promised... By the way, this is for you."

Dumbledore handed the booklet in his hand to Kyle, "I wrote this a long time ago. It is also the basic theory that must be mastered to learn Vulcan's Way."

Kyle took the booklet and looked at the slightly faded cover.

The Evolution of Magic Runes: Spells and Symbols

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"Ancient magic runes?"

"To be precise, it should be rune magic."

Dumbledore explained: "Using a wand to write magic runes and using symbols instead of spells is the original form of magic. It is powerful, but complex and difficult to control. If you are not careful, magic may backfire on you.

“It was for this reason that the four founders of Hogwarts, Gryffindor, Ravenclaw, Hufflepuff, and Slytherin, established Hogwarts. They believed it was necessary to teach young wizards how to use magic correctly to ensure their own safety.

"But even so, it was unable to completely change the situation of fewer and fewer wizards... It was not until hundreds of years later that, with the efforts of some very far-sighted wizards, runes and symbols were gradually replaced by spells and gestures, which allowed the number of students at Hogwarts to increase."

"Ancient rune magic..." Kyle whispered.

Sure enough, his previous idea was correct. Even if the time converter could allow him to contact people from a thousand years ago again, such behavior would be tantamount to seeking death.

"Then Professor, how many people were there in Hogwarts a thousand years ago?" Kyle asked curiously.

"According to the records in the admission book..." Dumbledore thought for a moment, "the minimum number of people was 20, and the maximum number was less than 50."

"A grade?" Kyle blurted out.

"No, everyone."

Dumbledore said with a serious expression, "In fact, if it weren't for the fact that your mastery of ancient runes far exceeds that of most adult wizards, I would not have agreed to teach you this spell. It is too dangerous."

Kyle pondered over what Dumbledore said. There are fifty people in a school, which means there are ten people in each college?

This probably doesn't need to be divided into grades.

"But here, you don't need to worry about your own safety."

Then Dumbledore changed his tone to a more relaxed one.

“So the first thing you learn is to remember the contents here.”

He pointed at the booklet with his finger and said, "Only after we have mastered these most basic theoretical knowledge can we proceed to the next step of learning.

"How about a week? I can make the decision and ask the professor... most professors will waive your homework for that week, or if you need more time that's fine."

Kyle casually flipped through the five-page booklet and said, "No problem, Professor. A week will be enough."

"That's good," said Dumbledore. "In that case, our classes will also be held every Saturday at nine in the morning, and the password will not change."

"Okay, professor," Kyle said, with a hint of anticipation in his tone.

It was his first time to come into contact with ancient rune magic, so he was naturally very interested and wanted to come here every day, but since Dumbledore had made such a decision, there was nothing he could do.

(End of this chapter)