Aileen was sick.

Oddly enough, it seemed she had never been sick since coming to this world.

Even during the most difficult times at the orphanage, Aileen was always the healthiest of all the children.

On the third day of the girl's sickness, Grindelwald forced her to drink some invigorating potions.

Unfortunately, besides turning Aileen into a silver teapot, it didn't show any signs of improvement.

Whether it was cold medicine from the non-magical world, ancient invigorating potions from the magical world, or the 'new drug' jointly developed by Nicolas Flamel, Horace Slughorn, and the Mendeleev Institute, none of them had any effect on Aileen.

The "magical cold medicine" developed based on potion-making techniques and modern medical theory was quite successful.

From Quirinus Quirrell's blood tests and nasal mucosa analysis, this brand-new concept potion formed a barrier-like wall in the human body, expelling or directly killing invading cold viruses—with magical blessing, the efficacy could reach about 80%-90%, a dream number that no oral medication could ever achieve.

Simply put, the new "magical cold medicine" was equivalent to deploying a layer of magical barrier within the user's body.

At Aileen's suggestion, Gringotts Wizarding Bank, the Academy City Research Institute, and St. Mungo's Hospital for Magical Maladies and Injuries jointly registered a magical medical company called "Umbrella," planning to launch "magical cold medicine" before Christmas.

You should know that in today's magical world, there are no mature large-scale medical companies yet.

Even if the "Umbrella" company only has one new drug for the time being, adding it to the various magical potions that have existed in the magical world before, this centralized potion specialty store model will surely cause waves in the wizarding world—not to mention, judging from the current efficacy and portability, the "magical cold medicine" alone is enough to support an entire market sales chain.

Compared to the ancient invigorating potions, the "magical cold medicine" truly achieved a fundamental cure for colds.

It's just that...

"No cold? Then what's wrong?"

Hogwarts Headmaster's office.

Aileen sat obediently by Fawkes the phoenix's perch, wrapped in a thick blanket, looking like a plump penguin. Although it was class time, she had been self-isolated for two days.

Not far from her, Grindelwald was frowning and questioning Dumbledore.

"Didn't you say there was no problem? Didn't you say this was common at Hogwarts? Then what's with this sick child now? If she doesn't get better, are you planning to keep her locked in the office?"

"Cough, cough, well... the self-isolation was my own request..."

Aileen weakly raised her hand, cautiously defending Dumbledore.

"Cold viruses are very prone to mutation. If I have developed some kind of stubborn illness, then it is best to self-isolate in time until the nature and whether it can be transmitted from person to person is determined—besides, it’s not like I have some terminal illness. Apart from being a little mentally sluggish and having a low fever, there don't seem to be any worrying complications so far."

"Stop trying to fool me with Muggle medical knowledge. Is this a problem that science can solve?"

Grindelwald waved his hand impatiently, glaring at Aileen fiercely.

"Now that so-called cold virus in you is almost gone, and bacterial cold and respiratory inflammation have been checked as well. If Muggle medicine was so great, so many people wouldn't have died in the past."

"So, this also proves... Miss Kaslana's current symptoms may not be a cold."

A hint of helplessness flashed in Dumbledore's eyes as he explained gently.

"On the other hand, Miss Kaslana's worries are correct. In the face of disease, whether it is wizards or Muggles, we have only just taken the first step. If magic really causes those diseases to mutate, then we must be cautious—but judging from Aileen's current condition, it doesn't seem like she has contracted the usual symptoms of a cold."

The usual symptoms after a cold?

Aileen thought.

If it weren't for this "cold," she would have almost forgotten what it felt like—or rather, "she herself" simply didn't know.

"Then do you have any different opinions?" she asked, "If it's not a cold, then what's wrong with me?"

For the past few days, it felt like all the sleepiness of the past had accumulated together. Aileen was almost always lethargic. Although she didn't have a runny nose, her body temperature had been constantly low, and her throat always felt uncomfortable, as if a bone was stuck in it. But strangely, no matter how much she coughed, she couldn't even produce a bit of phlegm.

"Obviously, I am not a great doctor or healer..."

Dumbledore replied, the old man's blue eyes falling on Aileen's silver hair, thoughtfully.

"But I know that if something can't be done no matter what direction you try, then perhaps the problem lies in the starting point—Miss Kaslana, you haven't forgotten the other half of your bloodline, have you?"

"You mean... Veela blood?"

Aileen frowned, not understanding Dumbledore's meaning.

There isn't much research literature on Veelas in the magical world. Most of her knowledge comes from the descriptions in the *Harry Potter* series in her previous life. Veelas, beautiful, turn into firebirds to attack enemies when angry...

Wait, flu, firebird... bird...

Could it be bird flu?!

Aileen nervously hugged the phoenix in her arms and rubbed it, saying cautiously.

"Could it be... that there are similar genetic diseases among Veelas? Or unique ethnic diseases?"

"You're not sick, don't worry, Miss Kaslana."

At this moment, another familiar voice suddenly came from the door.

Aileen turned her head to follow the sound, just in time to see Newt Scamander push open the door to the headmaster's office and walk in.

This magizoologist hung his robe by the door and nodded politely to Dumbledore.

"In legends, Veelas can freely transform into various animals, beautiful women, but just like Boggarts, no one knows what the true form of a Veela is... but judging from those Veelas who married wizards and their descendants, human form should be one of their most common appearances. Most young Veelas are also cute little girls."

Newt Scamander carefully examined Aileen, and said softly.

"Wizards can also transform, Animagi. You have seen Professor McGonagall's transformation—only powerful and smartest wizards can do it. But as long as a Veela is an adult, they can easily transform into more than one kind of animal."

"So what?" Grindelwald interrupted impatiently, "This is not a magical zoology class."

"This also means that the magic in a Veela's body is more condensed and powerful than that of a wizard—"

Dumbledore waved his wand, and a balloon appeared in the office, gradually beginning to inflate.

"If the inside of a ordinary wizard is air, and an ordinary Veela is a stream of water, then the inside of Miss Kaslana’s ‘balloon’ who has activated the magic bloodline is mercury—but in any case, as the magic condenses, the balloon will gradually grow larger..."

The old wizard's gaze swept slightly over Aileen's undeveloped chest.

"And the problem is that frequent use of runic magic has made Miss Kaslana's development tend towards pure-blood Veela, but the rate of magic increase in your body is faster than that of a normal Veela. Unlike the growth rate of ordinary Veelas, your magic has now exceeded that of many seventh-grade graduates, and has naturally reached the baseline of an adult Veela."

Dumbledore spread his hands, blinked flexibly, and explained with a smile.

"High concentration of magic begins to trigger the talent of the Veela bloodline. The magic in your body mistakenly thinks you are an adult..."

"So, listening to this, it seems to mean that I'm entering puberty?"

Aileen looked at the balloon in the office that was still expanding, and said in a relaxed tone.

"Then this balloon, is this my current body, right? How much time do I have to solve the problem? Thinking carefully, there are many ways to solve it—but, Professor Dumbledore, you only allow one, right?"

"Well, in terms of time, there is plenty of it..."

Dumbledore said with a smile, waving his hand to dispel the metaphor in the air.

"Fortunately, we are not a balloon with its mouth sealed. There are too many half-covered openings on the human body. When the magic in your body reaches a critical point, at most it will look like you are now... The excess magic will gradually dissipate into the air, subtly strengthening and stimulating your body's growth—of course, the process will be relatively long."

"Another plan, Animagus, right?"

Grindelwald crossed his arms, glanced at Newt who was silently pouring tea, and snorted.

"Or does Mr. Scamander have other good ideas? If it's just to consume magic, I have many simple and easy-to-learn spells that don't require so much trouble at all."

"Uh, how should I put it, Professor Dumbledore's statement is still slightly flawed—"

Newt Scamander nervously touched his nose, his eyes crossing over Grindelwald to look at the half-Veela.

"Magic is not something that actually exists. There is no concept of capacity. It's like an Occamy—well, you should all know about Occamies, right? It can change its volume freely, but its magic will not be concentrated or diluted because of this."

"If you are a pure-blood Veela, then you can change your form now, or learn to spit fireballs..."

Newt explained, waving his hands in the air.

"This is not determined by your subjective consciousness, but the instinct hidden in your bloodline. It’s like even if no one teaches a Norwegian Ridgeback how to breathe fire, it knows how to spit out dragon flames—and the same situation is put on you, it is actually to find a way to unlock those powers that cannot be presented temporarily. Animagus is just one way."

"So, theoretically speaking, when I learn to breathe fire, fly, and transform, the problem is solved?"

Aileen raised her eyebrows, summarizing thoughtfully.

This sounds very coherent logically, but why does she always feel that something is wrong.

According to this attribute combination, if her Animagus is a fire dragon, then it seems to be completed directly? Although theoretically speaking, it seems that Animagi can only become ordinary animals, not magical creatures.

"Not all of them, after all, you still have a wizard's casting ability."

Newt Scamander shrugged and thought for a few seconds before saying uncertainly.

"If I guess, if you can master one, preferably two related abilities—instead of magic—then it should be much better. Coincidentally, Professor McGonagall is an expert in Animagus, I suggest..."

This chapter is not over, please click on the next page to continue reading!

"Eh, wait, you—you're not planning to have Professor McGonagall tutor me on Animagus alone, right?"

"That's the plan for the time being," Dumbledore smiled slightly, and said gently, "You will receive one individual tutoring session a week, but don't tell anyone. The Ministry of Magic will not allow underage students to try this difficult magic... Of course, if anyone asks, you can say it is Transfiguration tutoring, after all, your Transfiguration is not the same as everyone else's."

McGonagall and her.

Transfiguration tutoring.

Weekly individual tutoring.

Why does she always feel like she has seen this scene somewhere?

Aileen was stunned for a moment, then immediately reacted.

Isn't this just a replica of the scene in the original story where Professor Dumbledore arranged for Snape to teach Harry Occlumency?!

Does this white-bearded old man particularly like pressure teaching, and isn't he happy until things get heated?!

You should know that although her relationship with Professor McGonagall has eased slightly, once it comes to that closed, individual tutoring session, who knows what will happen. Women are quite terrible when it comes to holding grudges—regardless of age.

"Why can't it be Sirius, I mean, Professor Black?" Aileen asked quickly.

"Because Animagi transformation gone wrong can lead to big mistakes," Dumbledore replied with a serious face, "I don't want you to have any accidents because of this. Without a doubt, Minerva is definitely the most suitable person in all of England."

"Uh, but—"

Aileen blinked, looking at Grindelwald for help.

Whether it's metaphysics or doubts based on human nature, she doesn't plan to put all her hopes on Professor McGonagall so foolishly—she personally threw that cat when she first entered school.

Who knows if she will suffer similar punishment when she turns into some helpless little animal.

"Transfiguration, fire, flying... If it's just these three points..."

Grindelwald seriously counted his fingers and grinned, saying softly in Aileen's expectant gaze.

"Why can't I teach this child? After all, this is also my student... According to ancient traditions, this kind of individual tutoring for inheritance still needs the consent of the students' mentor, right?"

As the old demon king spoke, he raised his hand casually, drawing a small circle in the air with his index finger.

Boom!

A dazzling blue flame appeared in the office.

"You see, it's not complicated! Dear Albus, among all the wizards you know, who is more skilled in fire, transfiguration, and flying than me? Oh, sorry... I didn't mean anything else..."

Grindelwald glanced at Newt, whose face instantly turned livid, and extinguished the flame dismissively.

This is the demon king successor he chose first.

Those who came later—had to queue up.

———

———

Goo goo~ Hooray~ Hooray~ Another big chapter!

It's almost the New Year, please vote~ Wuwu~ Please~