The next morning, Lin Yue, who had just finished breakfast in the great hall, was pulled into Professor McGonagall's office. They were about to use the Floo Network to go to the Ministry of Magic and register Lin Yue's Animagus according to the laws of the Ministry.

Professor McGonagall handed Lin Yue a handful of Floo powder. "With your reading volume, you must have read about how to use Floo powder. Step into the fireplace, sprinkle it at your feet, and then clearly say 'Ministry of Magic.' Remember to speak clearly."

Lin Yue nodded with a neutral expression. "Okay, Professor McGonagall, I understand."

Stepping into the fireplace, Lin Yue sprinkled the Floo powder and said, "Ministry of Magic." Green flames erupted, and Lin Yue instantly disappeared from the fireplace.

The next moment, she appeared in one of the fireplaces in the Ministry of Magic's atrium. As she stepped out of the fireplace, her gaze instinctively fell on the fountain statue that attracted the most attention in the atrium.

The scene depicted in the statue looked quite interesting, the large golden statues were located in the middle of the pool, and the tallest of them all was a wizard with a wand pointing straight into the air. Around this statue were statues of a witch, a centaur, a goblin, and a house-elf.

"People always think they are greater than other beings, but in reality, whether it’s centaurs, fairies, or house-elves, they all possess unique talents that humans cannot compare to."

Green flames erupted again, and Professor McGonagall stepped out of the fireplace, joining Lin Yue as they looked at the fountain statue not far away. She placed a hand on Lin Yue's shoulder and raised an eyebrow. "I dare say that if a house-elf rebellion were to happen now, most wizards would not stand a chance against them."

Lin Yue's voice was flat and unchanging, "Yes, the book mentioned that the magic of house-elves is a complete system and very powerful."

"A well-educated child," Professor McGonagall said with a smile of approval as she led Lin Yue towards the Ministry of Magic's elevator.

The sight of a Hogwarts professor bringing what appeared to be a first or second-year young witch to the Ministry of Magic puzzled many Ministry employees.

They couldn't help but cast curious glances at Professor McGonagall and Lin Yue.

After glancing down at Lin Yue and confirming that she was not uncomfortable with the attention, Professor McGonagall felt relieved.

She merely shot a look at the surrounding people, subtly reminding them to tone it down a bit so as not to scare her student.

Upon receiving Professor McGonagall's glance, nearly all the Ministry employees shuddered, recalling their own days at Hogwarts.

After a quick curious glance, they hurriedly turned their eyes away; they were quite busy with work, really.

As she followed Professor McGonagall into the elevator, Lin Yue looked up at her and calmly said, "Thank you, Professor McGonagall."

She had certainly noticed Professor McGonagall's subtle protection earlier, and according to the rules of politeness, she should express her gratitude after receiving help from the professor.

"You're welcome, Miss Lin Yue." Professor McGonagall pressed the button for the third floor and stood quietly with Lin Yue in the elevator, waiting for the doors to close.

As she watched the elevator doors slowly close, Lin Yue, for some reason, instinctively began to construct a mental model of the Ministry of Magic's hall based on her recent observations.

She started to reverse-engineer the entire structure of the Ministry of Magic based on the internal layout and the area of the hall that she could infer.

A voice deep in her mind told her that she should continuously refine this model.

Her gaze shifted to the elevator buttons, which numbered ten in total.

The mental model in her mind began to stack up, layer by layer, as the buildings were reverse-engineered according to Lin Yue's calculations of the hall.

The overall structure of the Ministry of Magic was becoming quite clear, with only the specific internal conditions of each floor remaining somewhat vague.

However, based on the overall structure she had deduced, Lin Yue could make a judgment.

There was no such large building in the Muggle world of London; its size was too great to exist on the streets.

Thus, the Ministry of Magic must be located underground, and certainly not at a shallow depth.

Reflecting on the books she had read, there was no clear description of the Ministry's exact location.

This led Lin Yue to conclude that the Ministry likely wished to keep its location hidden.

However, the employees of the Ministry must know where it is, and according to relevant Ministry laws, there was no clause prohibiting the disclosure of its location.

Therefore, starting from the Ministry employees and spreading outward, it was likely that many people knew where the Ministry of Magic was located.

So... it was a semi-public secret.

As her thoughts raced, the elevator doors opened with a "ding," and Lin Yue followed Professor McGonagall out of the elevator.

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What greeted her was a scene of bustling activity, with a group of staff members hurriedly eating breakfast and tidying up their desks.

They were preparing for the workday ahead, and as her gaze swept across everything in sight, Lin Yue immediately made deductions based on the overall model of the Ministry she had constructed earlier.

The architectural style of the Ministry of Magic is very orderly, with load-bearing walls, load-bearing columns, and so on, all being used normally.

There is no doubt that the internal structure of each floor of the Ministry of Magic can be easily deduced.

Based on the interior decoration style and room layout she is currently observing, Lin Yue's mental model of the Ministry of Magic is rapidly being refined.

Each floor is divided into office areas and small rooms. By the time she followed Professor McGonagall to a registration desk located in a corner, Lin Yue's mental model of the Ministry of Magic had been completely formed.

If she were to draw this model now, it would likely astonish many Ministry of Magic employees.

Because her understanding of the internal situation of the Ministry is even more familiar than theirs, the accuracy of this model has reached about eighty-five percent.

Aside from a few minor miscalculations regarding the size of certain rooms.

In Lin Yue's mind, the registration office resembled a small magical department. The Animagus registration office had been the most relaxed place in the Ministry of Magic for a century. After all, there were only seven wizards registered as Animagi; there were certainly others who had mastered the skill, but they simply didn't come to register, and the Ministry had no way to compel them. With no new registrants coming in, the staff at this position spent almost every day sitting idly and waiting for the end of their shift. This made the position quite "famous" within the Ministry.

However, today the staff member at this position finally had some work to do. Lin Yue followed Professor McGonagall to the registration office, and Professor McGonagall cleared her throat as she looked at the clerk who was organizing her things.

“Ahem, Miss Wister, good morning.”

“Good morning.” Wister looked up dully, momentarily stunned when she saw it was Professor McGonagall, but she quickly perked up.

“Professor McGonagall! What brings you here? Is there a change regarding Animagi that needs to be registered?”

“No,” Professor McGonagall replied with a smile, gently pushing Lin Yue to the registration desk, “I’m here to help a student with her registration.”

“Ah?” Wister looked down at the small Lin Yue, her mind not quite processing what Professor McGonagall meant.

“Hello, Miss Wister,” Lin Yue politely nodded and greeted her.

“Hello, hello…”

Wister stared blankly, instinctively opening his mouth, and it took him five seconds to regain his senses.

"Wait, registration! Come here," Wister looked at Professor McGonagall in disbelief, "Professor McGonagall, do you mean this, this child is going to register as an Animagus?!"

"Of course," Professor McGonagall said with a smile, ruffling Lin Yue's hair.

"How old is she, uh, what grade is she in?"

Wister looked down at Lin Yue again, completely unable to guess her age now.

She has become an Animagus, but she looks so small... this is too contradictory.

"I am a second-year student at Hogwarts Ravenclaw."

Lin Yue answered Wister's question in detail.

"Second-year... twelve years old."

Wister looked dazed, reaching under the registration desk to take out the registration book, writing down the year and today's date.

Then he shook his head, forcing herself to wake up.

This is the youngest Animagus ever registered, and it's being done by her.

Wister thought for a moment and felt a bit proud, "What is your name?"

"Lin Yue."

A very nice-sounding Eastern name, Wister thought to herself, nodding as he wrote it down in the registration book.

"Now please demonstrate your Animagus."

"Okay." Lin Yue nodded, and just when Wister thought she would at least need to take out her wand to assist with the transformation, she saw her appearance change in an instant.

Her body quickly grew to over two meters tall, covered in glossy black feathers that reflected some red under the light.

With sharp teeth and claws, Wister stared at the strong, noble, and elegant creature before her, taking a sharp breath.

For some reason, she felt a deep-seated fear rising within her.

This fear told her that if the creature in front of her wanted her life, she wouldn't even have the chance to draw her wand.

Swallowing a few times, Wister recalled that she had read quite a few books written by Muggles about animals to prepare for this job.

The goal was to recognize whatever animal everyone’s Animagus might be.

Now, looking at the creature Lin Yue had transformed into, Wister felt a wave of relief that she had read enough books about animals.

One of them happened to be about prehistoric creatures, which mentioned a type of creature called dinosaurs.

And the dinosaur that this little girl named Lin Yue had transformed into seemed to be called... Velociraptor.

Wister hurriedly wrote down the name that was in her memory.

Fortunately, she still remembered it, but just to be safe, she decided to ask.

"Take a look, is the animal you've turned into this name?"

Wister raised the registration book in her hand for Lin Yue to see the name on it.

Lin Yue lowered her head, looked at the name of the Velociraptor on the registration book, and nodded her head.

Wister breathed a sigh of relief, took the registration book back, and continued to write down the characteristics of Lin Yue's Animagus.

"Characteristics: the feathers are glossy black all over, and they can reflect red under light."

"That’s enough."

Wister nodded at Lin Yue, and the next moment, Lin Yue transformed back into her human form.

"Sigh... At twelve years old, mastering Animagus and being able to transform without a wand, I really feel like a failure."

Wister lamented, shaking her head, and finally stamped the registration book.

Professor McGonagall, watching her from the side, spoke with a mix of teasing and seriousness.

"I don't think you should say that, Miss Wister. Everyone has different talents."

"Just like you, I remember your Disillusionment Charm was quite good."

Professor McGonagall's teasing tone was even stronger, "Until graduation, Mr. Trennor never knew who had been putting salt in his pumpkin juice every day for four years."

“Cough cough cough…” Seeing the professor mention the previous incident, Wister's face turned slightly red as she coughed a few times.

“This, this is our mutual behavior; it’s not me bullying him unilaterally. He was the one who first put sugar in my steak.”

As Wister spoke, she gritted her teeth. Merlin knew how devastated she felt when she took a bite of that steak, which was sweeter than honey, back then.

Damn Trennor was laughing super loudly!

But it was undeniable that they were very good friends.

After completing the registration and politely bidding farewell to Wister, Professor McGonagall hurriedly left with Lin Yue.

She didn’t want to wait for Lin Yue to register her Animagus news and then have her emotionally battered student be pestered by those "old foxes" from the Ministry of Magic.

Back at Hogwarts, Lin Yue slightly bowed to Professor McGonagall, “Thank you, Professor McGonagall, for accompanying me to the Ministry of Magic for the registration today.”

“You're welcome, Miss Lin Yue.” Professor McGonagall helplessly helped Lin Yue up; when would she stop being so polite?

“Well, I’ll take my leave now. Goodbye, Professor McGonagall.”

“Alright, goodbye, Miss Lin Yue.”

Lin Yue turned to walk towards Professor McGonagall's office door, and halfway there, Professor McGonagall suddenly remembered something and quickly added,

“By the way, Miss Granger's parents will be coming to Hogwarts in two days and will spend Christmas here. If you want to pick them up, you can wait in the corridor at the entrance of Hogwarts Castle.”

Lin Yue's footsteps suddenly paused, and she turned around to bow her head to Professor McGonagall again. "Okay, Professor McGonagall, I understand. Thank you for the reminder."

After saying that, she turned and left the office, gently closing the door behind her.

As she walked back to the Ravenclaw tower, Lin Yue's mind was unusually blank, not immediately filled with thoughts of studying.

Uncle and aunt were coming, and they said they wanted to thank her, but how should she face their gratitude? It was clearly her fault.

Shaking her head, Lin Yue pushed this unanswered question to the back of her mind. As thoughts of her Christmas holiday assignments surfaced, she made a simple decision.

When she saw aunt and uncle, no matter what, she would first apologize for her mistakes.