Hogwarts: I am the White Demon King

The next day, bright and early, after breakfast, Sebastian took out a small bottle of potion and placed it in front of Harry.

"Harry, do you recognize this potion?"

Harry picked up the potion, opened the bottle, and carefully examined it.

He found that this potion looked extremely viscous, like mud.

"It's Polyjuice Potion!" Harry's eyes lit up, and he blurted out, "Professor Snape taught me."

"Because the raw materials are relatively rare, especially since the Ministry of Magic has strict control over Boomslang skin, this potion is very rare on the market."

"Moreover, Professor Snape had me brew Polyjuice Potion during this summer vacation, and calculating the time, it should be finished in about three days."

Thinking of this, Harry said得意地: "Professor Snape said that the whole pot of Polyjuice Potion would be given to me as my birthday present this year."

Hearing this, Sebastian was slightly stunned.

Not bad, he's learning ahead of schedule, and now he can brew Polyjuice Potion.

This is a potion that can be of great use at a critical moment.

Snape is still so generous to Harry, knowing that the raw materials for Polyjuice Potion are not cheap.

In addition to Boomslang skin, Fluxweed, Knotgrass, and Bicorn horn are all valuable.

If it's a whole pot of Polyjuice Potion, as long as it's properly preserved, it will be enough for Harry to use for a long time.

"Since you recognize this potion, it will be much easier to handle."

"However, you probably haven't used Polyjuice Potion to transform before, have you?"

Sebastian took out a hair and handed it to Harry: "Add the hair, drink it, and I'll take you to a good place."

Harry frowned and took the hair.

To be honest, any potion that requires adding someone else's hair feels awkward.

Thinking of the function of Polyjuice Potion, Harry hesitated and said: "This hair, are you sure it's a boy's?"

Although this hair is only ten centimeters long, Harry still wanted to confirm that this hair was not pulled from a girl's head just to be safe.

After all, Harry had no intention of turning into a girl and wearing women's clothes.

If this hair belonged to a girl, he would never go out with Sebastian no matter what.

Hearing Harry's words, Sebastian burst out laughing.

This kid is quite clever, knowing to confirm the source of the hair first.

"Young man, you can't have such pedantic thoughts," Sebastian joked to Harry.

"Let me ask you, if one day, you are being hunted down by the enemy, and then you want to use Polyjuice Potion to confuse the enemy."

"At this time, would you choose a girl's hair or a boy's hair?"

Why are there such strange questions?

Sebastian likes to tease people every day!

However, if this kind of situation really occurred, choosing a girl's hair would indeed be much better.

The people in charge of catching you would never expect that their target would turn into a girl.

Could it be that I have to put a few pieces of women's clothing in my undetectable extension wallet in the future?

That's too embarrassing. Once discovered, I'll be socially dead in public.

It seems that I can't let Ron flip through my undetectable extension wallet casually in the future.

"This..." Harry's face flushed red, and he said in a small voice, "If there really is such a day, I might choose a girl's hair."

"However, we shouldn't need to today, right?" Harry looked at Sebastian, his eyes full of pleading.

"Haha~" Seeing Harry's embarrassed look, Sebastian couldn't help but rub his hair.

"Don't worry! This is a boy's hair." Sebastian took out a set of adult men's clothing and handed it to Harry.

"Drink the potion, go to the room and change your clothes, and then we'll set off."

Hearing that it was a boy's hair, Harry was completely relieved.

He took the hair, carefully aimed it at the potion bottle, and stuffed the hair in.

Soon, the viscous potion began to react, turning into a clear golden color. Only at this time did the Polyjuice Potion truly have the effect of transforming people.

Harry picked up the Polyjuice Potion, took a deep breath, and thought about transforming into another person, a kind of nervousness and anticipation churning in his chest.

He closed his eyes, forced himself not to care about the strange smell, and then picked up the potion and drank it all in one gulp.

"Ugh!"

So hard to drink!

I've never drunk anything so hard to drink.

Harry would bet that even mop water would be a hundred times better than this.

Ignoring the churning in his stomach, he picked up the set of adult men's clothes, covered his stomach, and quickly ran back to the room.

As soon as he closed the door, Harry felt a strange tremor spreading from his stomach to his whole body.

The feeling was like countless small insects crawling under his skin, causing him to shiver involuntarily.

Then, his body began to twitch violently, his bones seemed to be reshaping, and his skin bubbled up like boiling hot wax.

Harry clenched his teeth painfully, trying not to make a sound.

He watched helplessly as his fingers began to lengthen, his nails hardened, and his palms became rougher.

Then, the clothes on his body also began to become ill-fitting, his trouser legs became shorter, and his top became narrower, making it difficult for him to breathe.

Gradually, the pain lessened, and the tremors in his body stopped.

My vision is so blurry!

Why is this happening?

Harry quickly reached for his eyes and found that he was still wearing his previous glasses.

He quickly took off his glasses, and instantly the whole world became clear.

It turned out to be a false alarm!

Harry breathed a sigh of relief, quickly changed into the adult clothes, and then walked to the mirror to observe the changes in himself.

The person in the mirror had completely turned into a stranger, about twenty years old, chubby, and looked very kind.

Is this the effect of Polyjuice Potion?

So magical, so interesting!

After confirming that everything was correct, Harry opened the door and walked to the living room.

What startled him was that there was no sign of Sebastian in the living room at all. Instead, there was a stranger.

The stranger looked about the same age as Harry's transformed self, except he was much thinner.

Looking at it, my new body can completely beat the other person twice over.

"Professor Swann, is that you?" Harry asked hesitantly.

"Hello, my name is Jack." The stranger stood up, walked to Harry's side, and extended his right hand, "Nice to meet you."

"Hello, my name is... my name is..." Harry was a little dazed, and didn't know what to call himself in his confusion.

"Haha, today you're called Leo." Hearing this, Harry reacted instantly.

The stranger in front of him must be Sebastian who drank the Polyjuice Potion.

This Sebastian is teasing me again.

I'm too stupid, I was actually tricked by this kind of trick.

I shouldn't have even thought that a stranger could suddenly appear here.

Aunt Mia told me that the defenses of Swann Manor are extremely tight, and even strange house elves can't appear here silently.

Harry couldn't help but feel a little annoyed.

This trace of annoyance came quickly and went quickly, and his heart was soon filled with curiosity.

Where are we going today?

It's so mysterious!

I even have to drink Polyjuice Potion before I can go out.

"Professor Swann..." As soon as the words came out, Harry thought of what Sebastian had just told him, and quickly changed his words.

"I mean, Mr. Jack, where are we going today?"

Hearing this, Sebastian's face showed a playful expression.

"We today,"

"Are going to Knockturn Alley..."

......

...

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