"Th-that witch! The cat—"

Mr. Granger was visibly startled, his eyes widening in shock.

Even though he had prepared himself mentally, witnessing a cat transform into a person right before his eyes was quite impactful.

"That's Professor McGonagall, the Deputy Headmistress of Hogwarts, Transfiguration Professor... and our Head of House."

Hermione glanced at her stammering father and explained earnestly.

With Professor McGonagall's appearance, the solemn atmosphere that had surrounded the parents was broken.

"She is one of the seven registered Animagi in the current Ministry of Magic, a publicly recognized Transfiguration Master in the magical world today, and one of the founders of the New Transfiguration Theory."

"...One of?"

Madam Abbott repeated softly in confusion.

She had read about the New Transfiguration Theory in the *Daily Prophet*, but she hadn't paid much attention to the content at the time.

After all, running a magical tavern didn't require such advanced Transfiguration skills. Compared to magical theory journals, she was more concerned with the new dishes in each issue of *A Bite of Hogwarts*.

"Yes, the New Transfiguration Theory is based on mathematics, physics, and a small amount of alchemy theory..."

Just then, a voice rang out lightly. Luna subconsciously looked at the fluffy white creature next to her.

As one of the "Authority Inheritors" of the binary inverted architecture transformation magic, she was well aware of the important role that Erina played in the New Transfiguration Theory.

However, before she could finish speaking, Professor McGonagall suddenly raised her voice, interrupting their conversation.

"Welcome to Hogwarts, parents—"

Professor McGonagall surveyed the crowd in the classroom, quickly speaking during the brief moment of peace brought about by the transformation.

"Undoubtedly, I am happy to answer any questions you may have, but time is limited today..."

"Perhaps, I could start by briefly introducing the general situation of Hogwarts, and if there are still questions, I will answer them individually in the classroom later."

Professor McGonagall's gaze swept over the silver-white hair in the front. Her voice, which had been somewhat high and hurried, gradually softened, returning to its usual composure.

Hogwarts had never held a large-scale parents' meeting before, and even Professor McGonagall was a little flustered at first.

Whether for students, parents, or professors, this new form of home-school collaboration had too many "areas to explore."

Fortunately, Professor Dumbledore had arranged everything before his "mysterious disappearance."

From the parents' meeting process to the content framework, each professor's "magic lesson plan" had detailed information, ensuring the smooth progress of the parents' meeting to the greatest extent.

Of course, Professor McGonagall knew that this content was likely not completed independently by Dumbledore—Dumbledore might have only been nominally involved.

The real drafter should be... right in front of her.

Professor McGonagall quickly withdrew her gaze from Erina, took a light breath, and calmly opened her magic book... or rather, her magic lesson plan.

In the end, she had to follow a student's plan and process to advance the parents' meeting. Times were really changing.

It seemed that after this parents' meeting, she had to calm down and study hard.

"Now, please take your seats as soon as possible. Parents' seats will be the same as the students' usual classroom seats—"

"Minerva, don't you think this request is a little strange?"

Before Professor McGonagall could finish speaking, a soft chuckle suddenly came from the middle of the classroom.

Madam Longbottom raised her eyebrows, looking at her old classmate standing on the stage, directly confronting her as she had in the past.

"Tell me, how can hundreds of people sit in dozens of chairs—you wouldn't have accidentally mistaken this classroom for the Quidditch stands, would you?"

At the same time, parents and students who couldn't find seats around them also whispered in agreement, looking at Professor McGonagall in confusion.

Not to mention that two classes were gathered together, even if there was only one class, the same seat could not accommodate a young wizard and a parent at the same time.

"Augusta, this is... a Transfiguration classroom."

Professor McGonagall smiled slightly and slowly pulled out her wand, tapping it gently on her magic lesson plan.

"I, Minerva McGonagall, Transfiguration Professor at Hogwarts—request a large public classroom, expected to accommodate two hundred people."

"What is this…"

Madam Longbottom frowned in confusion.

The next moment, the surrounding walls suddenly made dull sounds of stone bricks rubbing together.

The Transfiguration classroom seemed to come alive, with bricks, floors, and ceilings beginning to move and extend in all directions.

In less than ten seconds, the Transfiguration classroom quickly transformed into a spacious and bright large lecture hall, and everyone didn't even have time to move or scream.

"Well, it should be possible now—of course, please sit as far forward as possible if you can."

Professor McGonagall looked at the unfamiliar but familiar Transfiguration classroom and took a deep look at the magic book beside her that was flashing with a faint light.

The special magical ripples of Hogwarts, the "living"... Hogwarts Castle?

Magic Castle, Philosopher's Stone, Transfiguration, Alchemy, Magic Book, Multi-Person Spellcasting...

Compared to the sealed items in the hands of the students, the magic books distributed to the professors were almost legendary artifacts hundreds of years ago.

More importantly, due to the pre-loaded magic slot function, professors could communicate with each other, cast spells together, and store them in their respective magic books in advance.

For example, the almost impossible change in front of them was actually completed jointly by Professor Flitwick, Professor Apocalipsis, and Professor Sprout. As the caster, Professor McGonagall only needed to guide the release of magic, but the real constraints on magic release and complex spell maintenance were all shared by other professors in advance.

In addition, according to Dumbledore, each professor's magic book was also connected to their employment contract, constantly "resonating" with Hogwarts Castle.

With the birth of magic books and the initial verification of the "magic wave theory," McGonagall began to take the wisdom of those Muggle scholars outside the school seriously.

Perhaps this was also the reason why Dumbledore prompted his temporary departure:

Non-magical civilizations were progressing too quickly, so he had to take the initiative to see the outside world first.

And the day Dumbledore returned would perhaps be the moment when the "New World" was officially announced.

"As I said, many changes have taken place at Hogwarts, which is why we decided to hold a parents' meeting this year."

Professor McGonagall gathered her thoughts and looked back at the parents and students in the classroom who were shocked. She cleared her throat and continued calmly.

"So, Miss Caslana, Miss Granger, Miss Hannah, Miss Lovegood... Well, could you please assist in guiding everyone to their seats as soon as possible?"

…………

It had to be said that Professor McGonagall's unique opening activity alleviated the embarrassment faced by Erina and others.

As student prefects, even if their parents had various questions, they would have to wait until after the parents' meeting to interrogate them one by one.

And in such a long buffer time, with Erina's "private chat magic" and the wisdom of a group of little witches, it was not difficult to temporarily create a logically self-consistent story.

After all, Mr. Lovegood took the initiative to take most of the blame, and also took the opportunity to guide out the mysterious banner of the Foundation and "Junior Investigators."

As the mastermind behind creating the "Foundation" and corresponding stories in this world, Erina had too many stories about "investigations" to tell. Following the "Junior Investigator" clue, there was almost no difficulty in deriving it. A logically self-consistent tabletop role-playing game retelling was enough to cope with all parents, and she could even answer every battle detail and special item.

The only thing that was a little difficult to fool...

Erina guided the parents and students to their seats, while looking at Benitez, who was talking to other parents in the front row.

Hmm, hopefully, acting cute and passing the buck can still work on Daddy Benitez?

After a moment, all the parents and students sat down in their seats.

Many people curiously stroked the surrounding stone walls and desks and chairs, but failed to find any traces of magic.

If they hadn't seen everything with their own eyes, no one would have believed that Professor McGonagall could "conjure" a brand new classroom in less than half a minute.

"What was that just now…"

Hermione asked in a low voice after returning to her seat.

This was definitely not Transfiguration. That scene did not belong to any magic she knew.

"Well, you should still remember the Room of Requirement, right? It's somewhat similar to that."

Erina said casually, poking the "Prefect's Handbook" closed in Hermione's bag.

"Under certain circumstances, we can resonate with Hogwarts and seek some small help, such as paying a certain amount of magic power, magic, so that the classroom becomes wider."

"Professor Dumbledore and Nicolas Flamel and others used a lot of profound and esoteric expressions to explain this phenomenon."

"However, I prefer my own name..."

Erina's fingers gently slid across the smooth and cold long wooden bench, and a glint of light flashed in her eyes.

The next moment, a small wooden tentacle quietly probed out and patted Hermione's thigh.

"Super Permissions."

————

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Yay!