This is what Ravenclaw looks like..

Chapter 75: Principal Zhenyin
"Strange…"

Andrew didn't react, but Percy looked at the empty room and began to look around.

"what happened?"

"I suspect someone used a Disillusionment Charm."

Percy's tone was a little uncertain, but after seeing Andrew's puzzled look, he began to explain, "It's a spell that can hide the user's body with magic and become similar to the surrounding environment."

Same with chameleons?

Andrew hadn't invested much time in spells, and it was the first time he had heard of such a spell - to be honest, he was a little tempted.

But this is not the key thing now.

He trotted to close the door, then ran back again.

"Is it just a simple hiding? No such thing as making the body disappear?"

"Of course not, how--what is this?"

Under Percy's puzzled gaze, Andrew took out a handful of dark yellow sand from his bag.

"Sand. I use it to practice Transfiguration."

This uneven material is much more difficult to transform as a whole than other materials, and Andrew deliberately left it on his body to make things difficult for himself - his transformation skills are currently at a rather awkward stage, and he can only hone them bit by bit through repeated practice.

To use basketball as an example, he has done very well in explosiveness and endurance training, and he is very familiar with the rules, but he is seriously lacking in height because he is too young and has not developed fully - there is nothing he can do about it and he can only wait for development while training what he can do.

Of course, transformation is not that simple, and there is more he can do than just wait for development.

"sand?"

"Yeah, that's right..."

Andrew nodded, then took out his wand and began to perform Transfiguration on the air - but this time he did not imitate the Bubblehead Charm. Instead, he compressed the air to the extreme and then wrapped the translucent ball with sand.

"Iron Armor Charm, Percy-senpai."

Andrew said as he handed the things to Percy and hid behind Percy.

"what?"

Percy took the ball hesitantly, then cast an Shield Charm on himself - when he was sure the spell was successful, Andrew cast a fake Bubblehead Charm on Percy. He then immediately lifted his Transfiguration.

Driven by the explosion of air, sand particles began to splash all over the room, but only made a slight noise when they hit Percy's Armor Charm - this made Percy's originally nervous posture suddenly become quite relaxed, even a little nonchalant.

No, this amount of sand is just like sand blown up by a gust of wind. Is it really that serious?
But at this moment Andrew didn't have time to explain to him what the necessary measures to prevent accidents were - because under the sweeping of the sand, a strange human figure was easily revealed.

Along with the human figure, there were two heads floating in the air that kept making "Pooh Pooh" sounds. One of the heads was red and it was obvious that he was a relative of Percy as their hair color was very similar.

Andrew was also very familiar with the other one - the hottest freshman in the school this year and a well-known figure in the entire wizarding world, Harry Potter.

"You two, what's going on - during the holidays..."

Percy scolded the two hanging heads rather harshly, but soon lost his temper - as an excellent prefect, he was very familiar with the rules.

Although these two people were dressed as if they were invisible cloaks, they did not seem to be breaking any school rules - which was even more infuriating.

He frowned, but finally gave up helplessly.

"Come on, you two, what are you doing here?"

"Wandering around, just wandering around in accordance with school rules," Ron almost rushed to answer the question. "Wandering around? Then why wear an invisible cloak?"

Percy stared at the disappearing body parts of the two people, and he was almost sure what it was now.

"There's nothing in the school rules that forbids us from wearing the Invisibility Cloak in school, Percy."

Ron was becoming more confident now, "Besides, it's vacation time now, we can go wherever we want."

Hmm? That shouldn't be the case... If Ron was like this all the time, Percy should have gotten used to it and shouldn't have been so angry - could it be possible?

Andrew glanced at the mirror and confirmed his guess—perhaps it was what he saw in the mirror that made him feel inflated.

This is normal, it really can understand people's minds.

Andrew hesitated for a moment, and finally chose to give Percy a chance to have a good communication with his brother.

"Hello, Mr. Potter."

Andrew held out his hand, and Harry, puzzled, reached out and shook Andrew's hand, "Can we go out and talk for a while, about the mirror?"

"Huh? Okay."

Harry was also in a hesitant stage. If it were someone else, he would definitely support Ron, but if the other person was also a Weasley, that wouldn't work.

The two of them left the room one after the other, and Andrew closed the door - however, he shook his head in confusion as he closed the door, but he found nothing.

Ron's howl came out almost immediately as the room closed.

A fifth-year elite prefect fought against a first-year greenhorn who had studied for half a year, and the result was beyond doubt. Ron might have learned the school rules well, but the word "brother" and the hidden rule of strength taught him a very new lesson.

"Don't worry too much. Professor McGonagall said that Percy always strives for the best, and I think that includes control."

Andrew looked at this Harry Potter and said softly - he had not planned for their meeting.

He was a somewhat realistic person, and even if he had to help, he was not willing to help those who did not help themselves, and he would never put himself in the most troublesome situation unless there was no other way.

"You'd better have less contact with the mirror," Andrew reminded. "I haven't heard much about its principles, but there is no doubt that it will show the scene you most want to see - this is not a good thing. Illusion is illusion after all, and it will not bring us any progress."

"Well, I see..."

Harry said in a low voice, he was actually not convinced.

Andrew saw it, too—but he had already persuaded her, and in the end, she had to rely on herself to overcome the satisfaction brought by the false fantasy.

"That's good. I think Percy has done enough persuasion."

Andrew smiled and knocked on the door, "Senior Percy?"

"Well, it's almost there."

Percy answered loudly, and then walked out happily - the not-so-correct saying that it's better to beat your brother as early as possible suddenly seemed correct at this moment.

"Let's go..."

He said contentedly, and Andrew followed with a smile.

It was not until he passed a corridor that he finally let go of his worries and a cold sweat broke out on his back.

He had figured out what was wrong.

(End of this chapter)