Being at Hogwarts, something's not right with this system.

In front of Snape and Dumbledore, Lin Yu adjusted the necessary medicinal materials for refining the Marrow Cleansing Pill, then lit the fire again, closed the furnace lid, and began refining the pill.

However, as a first-grade pill, the Marrow Cleansing Pill is actually not complicated, and it does not even require constant attention to the situation inside the pill furnace with one's divine sense.

If it is a high-grade elixir, not only do you need to use your divine sense to adjust the combination of medicinal materials at any time during the refining process, but you also need to add the medicinal materials in order according to different heat levels and degrees to carry out a complicated refining process.

Even more so, some elixirs require special furnace fires.

For example, subterranean fire, lava fire, or even strange fire.

Therefore, Lin Yu still seemed to be in a very good position, after all, he had already successfully refined a batch.

Snape, who had been watching the whole thing, couldn't help but ask when Lin Yu closed the lid and stopped, "I remember you recited a spell earlier?"

Lin Yu gave Snape a strange look and said, "You mean 'Taishang Laojun, hurry as the law commands'? That's not a spell, it's more like a prayer. You can say it or not, it's purely psychological."

As is well known, Laozi (Taishang Laojun) was a master alchemist in Journey to the West.

So he really just shouted it out casually.

Snape was speechless. Are you all this casual?

The alchemy process takes some time, so Dumbledore took this opportunity to prepare to teach Lin Yu two spells as agreed.

"I'll teach you a spell to stop magic first," Dumbledore said. "It's a defensive spell that can nullify many spells. You can use it to protect yourself."

In front of Snape, Dumbledore took out his wand, intending to give Lin Yu some special instruction.

Lin Yu was actually a little disappointed. He really was going to teach him this little magic trick?

Oh well, since spell-stopping is something first-year students can't access, it's good to learn one more spell ahead of time.

At the same time, Lin Yu looked at the wand in Dumbledore's hand and guessed that it might be the Elder Wand.

Do I have a chance to snatch it?

Forget it. The real strength lies in the wizard, not the wand. Besides, he has the Spirit Sword. There's no need to fall out with Dumbledore over a mere wand.

After explaining the effects of the spell to Lin Yu, Dumbledore recited the incantation "Finite Incantatem" in front of Lin Yu.

Lin Yu silently memorized the incantation, then took out his wand and waved it at the open space: "Spell Stop".

With a "whoosh," a beam of magical light shot out from the tip of his wand.

Fortunately, because it was a defensive spell, it did not damage the floor.

But Dumbledore and Snape stared wide-eyed at Lin Yu in disbelief.

You learned it after only hearing it once?

The spell "Stop Curse" is not a basic spell, so first-year students certainly don't have the opportunity to learn it.

In fact, this magic is usually included in the curriculum of the third-year Defense Against the Inferno course at Hogwarts.

Dumbledore and Snape exchanged a glance, both able to see the surprise in each other's eyes.

Dumbledore's lips curled up slightly, and he winked at Snape with a smug look, as if to say that Slytherin had missed out on a promising talent.

Snape clenched his fist.

Do you regret it?

Actually, there is a little bit.

Snape hadn't expected Lin Yu to know how to refine pills. If he had known the kid knew this, he could have held his nose and let a child from China, who clearly didn't belong to a pure-blood British family or even have British citizenship, join Slytherin.

Not to mention, Snape is now secretly investigating how Lin Yu knew those secrets.

He suspected Lin Yu and naturally wanted to keep Lin Yu under his watchful eye.

As for the bullshit prophecy Lin Yu made that day, he wouldn't believe a single word of it.

"Next, I'm going to teach you about armor protection," Dumbledore explained the principles of the spell to Lin Yu.

Armor, as the name suggests, allows a wizard to use magic to create a transparent barrier to protect themselves.

Unlike the Patronus Charm, which requires positive emotions, the Armored Guardian only requires sufficient control over magic to be used.

This defensive spell is very useful.

Lin Yu silently memorized the incantation, raised his wand again, and chanted, "Protego."

In an instant, Lin Yu felt a transparent barrier covering his entire body.

Dumbledore and Snape fell silent again.

If it's a coincidence once, then it can't possibly be a coincidence twice.

Dumbledore looked at Lin Yu with a deep, meaningful gaze. He was certain that this child was a genius.

Snape, however, had even more to think about, and couldn't help but complain to Dumbledore, "Don't forget you're the headmaster; you can't show favoritism to any particular child."

"Don't get excited, Snape. This is my payment for Lin Yu demonstrating alchemy to us. I promised him that. You know, even the Ministry of Magic is asking about the Marrow Cleansing Pill now, and Malfoy, I mean Lucius, he also wants to know about the effects of the Marrow Cleansing Pill," Dumbledore said, finding an excuse on the spot.

Lin Yu was still feeling the effects of the armor when he subconsciously said, "I understand now. As long as a wizard relies on this magic for protection, he probably won't even be afraid of bullets."

He's right, the armor's defensive capabilities are quite strong; it probably can't even be penetrated by a sniper rifle.

"Hmph," Snape scoffed, "Do you really think Muggle weapons can threaten wizards?"

Lin Yu looked up, waved his wand to dispel the barrier, and said quietly, "The only weakness is that it can't be kept on all the time, but wizards are human too, Professor Snape. You can't always be on the defensive. Humans have assassins; they can watch you all the time, and even shoot you in the head from 800 meters away."

Lin Yu could never control his temper. He couldn't stand people calling ordinary people "Muggles" because he used to be an ordinary person too.

Lin Yu was almost certain that he only acquired the wizarding talent after transmigrating, and that it was because he fused with the Chaos Dao Body that he had such a good talent.

If he also calls ordinary people Muggles, then what is he himself?

Is it planted in mud?

After all, his parents are just ordinary people.

Seeing that the two were about to clash again, Dumbledore quickly smoothed things over, saying, "Alright, Lin Yu, Snape is at least your professor, even if he only teaches Potions. How's your alchemy going?"

Lin Yu glanced at the alchemy furnace and said, "A few more minutes. I have a few more things to say. In China, there's a saying: 'Those who are accomplished are teachers,' or 'Those who are capable are teachers.' There's also a saying: 'Among three people walking together, there must be one who can teach me.' The latter was said by the sage Confucius. What does this represent?"

"As I said before, Professor Snape, you are simply older than me, and therefore know more. But that is not your advantage, because when I reach your age—no, it won't be that long—I will surpass you sooner or later. Even Dumbledore. I will aim at you, but you will never be my ultimate goal."

That's a rather presumptuous statement.

But Dumbledore wasn't angry; instead, he smiled with satisfaction.

Of course, there's a reason for this. After all, Lin Yu is now a Gryffindor student, and he had previously expressed his desire to become the headmaster of Hogwarts.

Most importantly, the age gap between the two is too large. By the time Lin Yu really becomes the headmaster, Dumbledore will probably have been dead for many years.

He certainly didn't care about Lin Yu's ambition; on the contrary, he felt gratified.

But Snape was different.