“So, Professor, shall I continue explaining the subsequent knowledge of potion ingredients?”

Aileen asked sweetly, a glint in her eyes.

“Oh, oh, of course, Miss Kaslana,” Slughorn said cheerfully.

The old walrus, unaware that he had been placed on the list by the third-generation Dark Lord, blinked and gave Aileen an appreciative look, signaling her to continue helping him popularize potion knowledge as before.

With a few questions and answers in the classroom, the students' interest was fully aroused.

After realizing Hermione's challenge, Aileen became more cautious in her subsequent descriptions. Instead of delving deeper into the field of potions, she shifted the conversation to biology, a subject she was more familiar with.

As the third-generation Dark Lord, Aileen wouldn't be careless in this "hundred times" bet.

She would wait for Gringotts to send over Hermione's summer reading list tomorrow morning, study it thoroughly, and then launch a targeted counterattack and set traps. That would be a fair contest.

“Ahem, next I'll focus on the dangers of pufferfish and bats…”

Aileen cleared her throat and tapped the blackboard with her wand.

“Besides inflating itself to intimidate enemies when in danger, the most dangerous aspect of pufferfish is the toxin it may carry—tetrodotoxin (TTX). This is one of the most potent neurotoxins discovered in the non-magical world, and was even considered by Muggles to be the most potent active toxin in nature.”

“A mere 0.48 milligrams of tetrodotoxin can easily take a person's life. If anyone here is curious enough to lick these pufferfish eyeballs, or hasn't worn gloves as per the operating procedures, and happens to ingest even a tiny bit of toxin, there might be someone leaving us forever tomorrow…”

Aileen's gaze slowly swept across the classroom as she spoke calmly.

Her voice was only slightly louder than a whisper, but everyone heard every word she said, as if a miniature Professor Snape had suddenly appeared in the classroom. The underground classroom instantly became orderly.

Poisonous?!

Die from just a tiny touch?!

Most of the young wizards subconsciously moved back, wanting to stay a little further away from the plate exuding a "poisonous" aura of pufferfish eyes. Thanks to the "Big Carp War" that had occurred several times last semester, Hogwarts students could calmly deal with dead fish. If it hadn't been for Aileen's words, many children might have directly touched them.

Michael Corner, one of the more reckless boys, turned pale.

Just now, to save trouble, they had directly grabbed the pufferfish eyes with their hands and threw them into the grinding dish. Now, accompanied by Aileen's cold explanation, Michael felt a burning sensation on his hands, as if they were covered in fiery chili sauce.

They're so worrisome… these Hogwarts children…

Aileen glanced at the few young wizards who were secretly putting on gloves and shook her head helplessly.

Only someone who has truly served as a Potions professor—well, assistant professor—would understand the pressure and irritability Severus Snape faced in every class. Unlike other classes, there were too many ways to die in Potions. If one wasn't careful, even a tiny wound could send these little ones to see Merlin.

Tetrodotoxin (TTX) is a highly toxic marine bioactive substance.

It includes tetrodotoxin, tetrodonic acid, tetrodotoxin ovarian toxin, and pufferfish liver toxin. It is one of the most potent toxins in nature, its toxicity equivalent to 1250 times that of potassium cyanide, and can cause central nervous system anesthesia in a short time.

If people mishandle or accidentally eat pufferfish, it can cause poisoning or even death.

And this is only the potion ingredients involved in the beginner potions class. In Hogwarts' upper-level teaching, as "magical materials" gradually appear more and more in potion ingredients, the danger also increases exponentially.

As a young wizard with less than ten years of tenure, Snape has too many things to worry about in Potions class.

Fortunately, at least in this world, there won't be a second batch of super invincible naughty children like the "Golden Trio" who throw Filibuster Firecrackers into other people's cauldrons in Potions class in order to steal potion ingredients.

Thinking about it that way, she really is a great, kind little angel.

If it weren't for the inability to take credit, just by easing the relationship between Harry and Snape, Aileen felt she could get a lot of house points from Severus Snape, and even the release methods of spells like Sectumsempra.

"However, tetrodotoxin has very stable chemical and thermal properties. Although general cooking methods such as salting or sun-drying cannot destroy it, heating it in a high-temperature environment for more than 30 minutes can usually decompose the toxin..."

The kind little angel paused for a few seconds, patiently waiting for Hermione to finish taking notes, and continued.

"Therefore, if you don't want to die tragically from an accident, it's best to strictly follow the procedure recorded in the textbook. After putting the mixture of pufferfish eyes and nettles into the cauldron, boil it at high temperature for at least 45-60 minutes before proceeding with the operation—and during this process, even if you're a little thirsty, never turn your attention to the hot soup in front of you."

Perhaps wizards don't have as deep a understanding of the micro domain in the magical world, but that doesn't mean they're ignorant.

As supernatural beings who control magical power, wizards have an easier time with trial and error than Muggles.

If boiling for an hour weakens the toxicity, then two hours; if two hours isn't enough, then six hours… Anyway, as long as you pay attention to detoxification at any time and take precautions in advance, even one person can use the method of tasting to summarize potions.

If all attempts fail, then add new ingredients or adjust with magic.

The progress of potion making is slow, but that doesn't mean people can't use the stupid method of repeated experiments to summarize answers.

Even the Swelling Solution, the most basic potion, undoubtedly went through generations of potion masters, spending countless time, gradually exploring and determining the final preparation process in terms of time and temperature control.

"Absolutely right!"

Slughorn nodded, cleared his throat, and raised a finger, adding seriously.

"Time, temperature, these two points must be taken seriously! Unless you think you've surpassed all the potion masters, don't take any shortcuts in this regard. And even more important is your handling of the potion. The former determines the quality of the potion you ultimately produce, while the latter determines whether you can safely complete the entire potion brewing process."

"But, Professor…"

Just then, a Hufflepuff boy with curly hair suddenly raised his hand.

"I've eaten pufferfish with my mom many times before, um… in the non-magical world. If this pufferfish is as dangerous as you and Aileen are saying, why do so many people eat it outside?"

"Hmm? Eaten pufferfish? I'm sorry, sir, what is your name?"

Slughorn raised his eyebrows and glanced casually at the unfamiliar young wizard.

Although he didn't discriminate against Muggle-born wizards from the non-magical world, Slughorn still felt a subtle sense of superiority and helplessness whenever he encountered such a little guy using Muggle knowledge to question magical knowledge.

"Justin, my name is Justin Finch-Fletchley, Professor."

Justin replied quickly, looking at Slughorn generously, "I'm from the non-magical world. Although my parents don't have magic, my family is doing pretty well. Sometimes they take me with them when they attend banquets or social events. In my memory, although pufferfish isn't often eaten, we should have eaten it several times."

"It's not surprising. Muggles are always greedy for immediate enjoyment and can't see the hidden dangers."

Slughorn frowned slightly and replied impatiently.

"Alright, Mr. Finch-Fletchley, if you learn more about pufferfish as a potion ingredient, you'll understand that all parts of it may contain toxins. This is the experience summarized by countless potion masters after trying it… You don't think Muggles know more about how to handle these poisonous creatures than wizards, do you?"

"But we…"

"That can only mean you were lucky and didn't encounter those toxins."

Horace Slughorn waved his hand impatiently, interrupting Justin Finch-Fletchley sternly.

"You're a wizard now, sir—if you still plan to rely on Muggle knowledge to argue with me, I suggest you think carefully about why you chose to come to Hogwarts to learn magic instead of continuing to go to school in the Muggle world."

Strictly speaking, Slughorn didn't discriminate against wizards of Muggle origin.

In his eyes, students can be roughly divided into three types: talented, promising stars; those whose surviving elders have celebrities worth befriending; and… other ordinary students.

Undoubtedly, Aileen clearly belonged to the top two overlapping items of the former two.

Harry Potter has the aura of "the boy who lived," but the orphan factor slightly reduced his score in the old walrus's heart. However, judging from Little Harry's performance now, if he inherited his mother's magical talent, he could also be ranked at the top of Horace Slughorn's "small list" as the first priority.

Besides, that little Malfoy boy is not bad either.

Although Old Malfoy, Draco's grandfather, Abraxas Malfoy, unfortunately died of dragon pox syphilis, making the entire Malfoy family lose some face in pure-blood wizarding families, Lucius Malfoy's efforts over the years have gradually given him some voice in the wizarding world.

I heard that Lucius Malfoy even successfully joined the Hogwarts Board of Governors some time ago.

As for this Justin Finch-Fletchley…

Horace Slughorn casually glanced at the parchment under the lesson plan.

It was the end-of-term exam results for last year's Hogwarts freshmen that he had finally managed to get, and Justin Finch-Fletchley was barely ranked around twenty, a mediocre area.

Considering that this little wizard is from the non-magical world, he should naturally be considered other ordinary students—and still ranked towards the bottom of ordinary students, after all, this little guy just stupidly contradicted him just now.

"Mr. Finch-Fletchley, I suggest you don't play these little tricks in the future. Do you think it's good to seek shortcuts in magical learning with Muggle knowledge? It's not good!"

Slughorn raised his finger, looked down at the little boy, and said in a deep voice.

"The magical world has a complete process for handling pufferfish-related potion ingredients. Unfortunately, there are no corresponding materials in the classroom, so I can't demonstrate it to you, but you can check the information in the library—before questioning and asking questions in the future, it's best to learn from Miss Granger, at least starting from magical books, not Muggle knowledge."

"Sorry, Professor, I'll pay attention to it in the future."

Justin Finch-Fletchley's face turned a little red, and he looked helplessly at his silent companions, and sat back awkwardly.

Whether in the non-magical world or the magical world, students can always clearly feel the attitude of the professors.

After clearly perceiving the impatience from Slughorn's tone, even the few little wizards who had a slightly better relationship with Justin Finch-Fletchley in the past did not help refute him at this time, and a low burst of laughter sounded in the classroom.

Really… a realistic social person, Professor Slughorn.

Aileen raised her eyebrows and looked at the old wizard, who was like a completely different person, with interest.

Unlike those students who didn't understand Slughorn yet, she knew Slughorn's personality too well.

This old wizard was so undisguised in the original work—although Horace Slughorn didn't have any malice, and there were no problems in either student education or major issues.

But in Aileen's view, this overly snobbish division always made people feel a little unpleasant.

Not to mention, if we only talk about family background, Justin Finch-Fletchley, who almost went to Eton College, is one of the few "true nobles" in Hogwarts, which is one of the reasons why Aileen remembered this little transparent person.

Although in most cases, the power and status of the non-magical world do not have much meaning in the magical world.

But when the accumulation and continuation time of a family is long enough, especially when the two worlds begin to show signs of mutual integration, the "noble" class like Finch-Fletchley is particularly important—just in the summer that just ended, some of the Finch-Fletchley family's industries have successively appeared on Gringotts' watch list.

When the time is right, they will serve as the first bridges to connect the two worlds.

And in this process, the attitude and position of little wizards like Justin Finch-Fletchley may not become the key to dominating world change, but they are not completely unimportant, and more importantly…

Aileen looked at Horace Slughorn meaningfully and raised the corners of her mouth slightly.

Times have changed, Professor.

"Actually, I can help answer Justin's question, Professor."

Just as Justin Finch-Fletchley lowered his head shabbily, looking at the textbook in front of him, awkwardly avoiding the gazes and low laughter of the surrounding students, a few voices that sounded like angelic singing suddenly floated from beside the podium in front of the classroom.

"The non-magical world's research on pufferfish toxicity is no less behind than the magical world. More precisely, in dividing the dangerousness and toxicity distribution research of tetrodotoxin, they are even slightly ahead of our current textbooks."

Aileen senior sister?!

Justin Finch-Fletchley quickly raised his head, looking forward to the front of the classroom.

Aileen was seen taking out her wand and waving it gently on the edge of the blackboard.

The next moment, a picture of a pufferfish appeared in front of everyone, and with Aileen's explanation, it gradually changed and decomposed on the blackboard, disassembling into parts, and a series of text descriptions were attached to the exploded view.

"According to the latest research in the non-magical world, the toxicity distribution of pufferfish mainly has the following five characteristics…"

"The first is that the toxin content in the fish body varies in different parts. Generally speaking, the ovaries of pufferfish contain the most, followed by the liver, blood, eyes, and gills, and the skin contain a little, and the muscles actually do not contain tetrodotoxin. However, after the death of the pufferfish, the toxins in the internal organs may seep into the muscles, which may cause occasional small amounts of toxins to appear in the muscles…"

“…(The remaining four points, click here to expand)”

Aileen paused slightly and looked at Horace Slughorn with interest for a while.

Unlike the impatience when Justin spoke before, the potions professor did not interrupt her, but looked at her with admiration, watching carefully the blackboard writing drawn by the girl on the potions class blackboard with magic.

Tsk, tsk…

This is really the ultimate in differential treatment!

As the evil vested interest, Aileen pouted with a complicated expression.

However, one thing is certain, compared to Severus Snape, Horace Slughorn is obviously more tolerant of genius students, and does not have so much obsession with potions class itself, in that case…

"In addition, pufferfish meat is plump, tender and boneless, and extremely high in protein."

Aileen's heart was set, the wand in her hand turned, and she continued seriously.

"As a top-quality seafood with richer nutritional value than other fish, mastering its toxicity handling methods and simple cooking precautions can be said to be quite meaningful for understanding and exploiting the value of pufferfish."

Huh?

Huh? Huh?

Horace Slughorn blinked confusedly.

He felt that there was something wrong with what the little witch had just said.

However, before he could figure out what was wrong, Aileen had already excitedly started introducing it.

"Generally speaking, fish is the freshest within 4-5 hours after death, and then the meat will become stiff and affect the taste."

"The pufferfish is different. Its meat is firm. The meat will only soften 24-36 hours after death. It is best to eat it at this time, and the taste is the smoothest. Now everyone can feel it first…"

Uh?

Feel it?

What is… feel it?

Before Professor Slughorn had time to ask, the potions class classroom suddenly rose with fog.

Accompanied by a series of weak magical fluctuations, two large golden plates appeared on almost every desk in the underground classroom at the same time. In the very center of the golden plate was a bowl of snow-white thick soup that emitted an alluring aroma.

Similarly, an identical set of golden plates also appeared on Slughorn's desk at the same time.

What is this…

Slughorn raised his eyebrows and picked up the exquisite small bowl to examine it carefully.

In the milky white soup, there were floating pieces of crystal-clear fish, and the rich fish soup was fragrant with a hint of milk and beef. Shaking the small bowl slightly, the gel-like thick soup made people unable to help but swallow.

"It's just very simple pufferfish white soup. The Hogwarts kitchen started to boil it in the morning."

Aileen waved her hand casually and sniffed the soup bowl in her hand with satisfaction.

As expected, it was worth her special effort to purchase a batch of pufferfish and have Gilderoy Lockhart lead a group of non-magical chefs to help guide the processing. This fresh and mellow aroma of fish soup is really the most delicious soup in the morning.

Of course, the reason for this batch of purchases was not to eat pufferfish.

As the head of Hogwarts Academy, Aileen was originally responsible for the purchase of all teaching supplies at Hogwarts.

In the potions class, many potions would use various parts of the pufferfish. Considering the cost accounting, it was obviously quite reasonable to directly purchase a batch of whole pufferfish from a professional farm in the non-magical world.

"In order to enhance the umami taste, I asked the house elves in the kitchen to add a small amount of butter and milk to it. In addition to that, there is no additional addition except for a little white pepper powder and salt. It is the most original pufferfish soup."

Aileen waved the wand in her hand gently, and the blackboard writing on the classroom blackboard changed again.

The pufferfish body in the corner quickly grew larger, cut into pieces, and then a series of excipients, as well as cutting, operating, and cooking techniques, emerged around it, echoing the Swelling Potion brewing process on the other side of the blackboard.

"Wait, this, I mean, this soup - the Hogwarts kitchen?"

Slughorn held the steaming bowl of pufferfish soup in his hand and was a little confused for a while.

"Oh, I forgot to introduce myself. I'm the head chef of the Hogwarts kitchen, Professor."

Aileen blinked in realization, blew on the hot soup in her hand, and explained in a light tone.

"Don't worry, this is the new tradition of Hogwarts Potions. Whenever new potion ingredients are involved in teaching, the Hogwarts kitchen will launch corresponding or similar dishes under the guidance of the potions class professor."

"This is mainly to strengthen everyone's understanding of potion ingredients… Professor Dumbledore also agreed."

As Aileen spoke, she raised the soup bowl in her hand and took a sip gently.

"Professor, please drink it while it's hot. This is a Hogwarts specialty - there are about twenty minutes left before the second reaction time of the Swelling Potion. After drinking the fish soup, you can also take everyone to handle the pufferfish."

"Handle… pufferfish?"

The smile on Slughorn's face froze slightly, and he politely repeated.

"Yes, didn't you just say that wizards know better than Muggles how to handle pufferfish, but because there is a lack of objects that can be demonstrated and learned in the classroom, you can only let everyone check the books to learn about it after class?"

Aileen winked mischievously at Justin Finch-Fletchley not far away, and then looked up at the old wizard.

"It is very coincidental that there is still a batch of unprocessed pufferfish in the Hogwarts kitchen…"

As the girl's voice fell, a large box suddenly appeared on the open space in front of the classroom.

Inside the box, it was filled with pufferfish that had been magically euthanized. Dozens of sluggish fish eyes stared blankly at Slughorn, and the old walrus's expression of the same sluggishness was reflected in the dull and dull fish eyes.