"Hogwarts, with a population of 1,230, 80% of whom are students......"

"It is a place where the most cutting-edge knowledge of human civilization is gathered, in other words, it can be said that it is a university and scientific research mecca at the top of human civilization, and if nothing else, Hogwarts has led the world in knowledge by at least twenty or thirty years......"

"It's no secret that Hogwarts is the safest place in the wizarding world, and in the world......"

"In order to protect the flame of civilization and protect underage wizards, Hogwarts has a complete security system......"

On the speeding Hogwarts Express, Elena smiled and introduced to the first-year students in the carriage who had not yet entered the school, and in the air, a miniature version of the three-dimensional hologram of Hogwarts Castle gradually took shape.

On the left chest of the girl's robe, there is a silver glittering letter "P" - the prefect badge of Hogwarts.

Prefects, who are appointed by the Headmaster of Hogwarts School of Witchcraft and Wizardry or the Head of each House of Witchcraft and Wizardry, who are given special rights and responsibilities. Each house selects a male and female fifth grade student to serve as prefects, who will remain in this position until they graduate. Therefore, each house will have 6 prefects at the same time, for a total of 24 in the whole school.

On the other hand, the presidents of the male and female student councils are usually selected from among the prefects and are not replaced.

It stands to reason that in terms of age and education, Elena at this time is still a little short of the standard.

However, considering that Elena had completed all the written exams in Years 1 to 4 ahead of schedule and received full honors, plus that she was also an assistant professor in Potions, a Hogwarts chef, and a special advisor to Hogwarts Curriculum Reform, as well as the advice of some members of the school's staff, Dumbledore finally decided to appoint Elena as the new prefect after consulting with the four house heads.

Unlike the rest of the prefects' badges, which are based on the colors of their respective houses, Elena is a little more special.

As one of the few students with a multi-house uniform, the background color of the badge on her chest was not a single color, but was divided into four badges evenly like the Hogwarts school crest with the pattern removed—but the blue pattern symbolizing Ravenclaw was still blank at this time, which made Elena somewhat regretful.

Of course, this is also a matter of course.

After all, in every way, Elena and Ravenclaw don't have much to do with each other.

The Ravenclaw common room welcomes any learned wizard, but that doesn't mean that wizards with superior intelligence deserve to belong here, and even if Elena has the secret of the knocker, she can't really be a Ravenclaw.

Unless...... Travel back in time to the time when the Sorting Hat was threatened at the back-of-school dinner a year ago......

"Elena, hey, so you're in this box, isn't the new student orientation here over......

Just as Elena was a little distracted, the door to the box suddenly opened.

Then, a girl with thick brown hair walked in—Hermione Granger.

Hermione Granger first glanced curiously at the little ones in the room, then turned her head to look at the white-haired dumplings, and before Elena could ask, she shrugged her shoulders helplessly and took the initiative to explain.

"The rooms you gave me were numbered the wrong one, and one of them was Luna's box - I guess after losing the boxing, all the freshmen over there are now all hers, so I'm here to see if there's anything else I can help with?"

"Luna?hmm...... Yes, I almost forgot that Luna was only officially enrolled this year. ”

Elena looked at Hermione, who suddenly appeared at the door, was slightly stunned, and nodded in realization.

"In that case, it just so happens that my admission introduction is almost over, and the next freshman trial will be left to you to continue—I still have two boxes to finish, and we will go back together later. ”

"Uh-huh, Elena hurry up, the boys' side should be almost over. ”

"Remember—"

"I know, I know, you can rest assured!"

Hermione nodded quickly, and before Elena could finish speaking, she pushed Elena out the door with a half-push and a half-rush, patted her chest confidently, and replied excitedly - she had been practicing for a long time for this day.

"Okay, I'll see you later......"

Bang!

As Elena's figure disappeared through the door, the door to the train compartment closed again.

Only Hermione Granger was left in the room, and four first-year freshmen who looked dazed and overwhelmed.

Hermione glanced at the dazed freshmen, coughed lightly, and pulled out her wand and waved it nimbly in the air, revealing a string of magical characters while mimicking Professor McGonagall's tone and whispering.

"Welcome to Hogwarts, freshmen - I'm Hermione Granger from Gryffindor's second year, and I'll take over the next freshman entrance trials and teaching. According to Hogwarts tradition, there is a small magical trial before you enter the Sorting House. Of course, don't worry, it won't affect your school life in the future......"

Hermione smiled, a look of nostalgia flashing in her eyes as she spoke.

"In the coming time, I'll teach you a basic spell that all wizards must master, and you'll have a full day to practice until the train arrives at Hogsmeade Station—"

Her gaze wandered between the freshmen, and she raised her wand and smiled.

"Now, draw your wands and follow along with my movements......"

............

Meanwhile.

Next to Hogwarts Castle, College City Area A.

"Fluorescent flicker!"

With the clear sound of a spell, a soft white light appeared in front of the wand.

Immediately after, what appeared to be a light cloud of catkins floated out of the tip of the wand, swaying and whirling in the air.

"It's unbelievable that you've shattered the lifelong faith of those guys at the Vatican...... Creating a light source out of thin air with just your mind, this is legendary magic, it's amazing! It's so fun!"

Kolmolov looked at the light in front of him with admiration and said with his hands dancing.

As one of the last scholars to be evacuated from the former Soviet Union, if we put aside the series of teleportations and placements yesterday afternoon, strictly speaking, this is almost the first day of Kolmolov's official contact with the wizarding world.

"It's just the most superficial form of magic, and any wizard can easily perform it. ”

Gellert Grindelwald grinned and replied gracefully, a well-concealed contempt flashing in his eyes.

If it weren't for Elena's request and the fact that the Muggles had used their monthly rights to use the wisdom of the wizarding world's top wizards to solve some of the problems that had plagued them for a long time, he would not have bothered to come over.

"Excuse me, is there anything else? This light can last all day, you can study it slowly......

Grindelwald glanced at the fussy Muggles, pulled out a copy of the contract and placed it on the table, knocking it lightly.

"If there is nothing else, then please sign this power of attorney to confirm - by the way, write down the content of your research topic, otherwise, that little girl will not admit it......"

According to the agreement he had negotiated with Elena, whenever he completed an "SSS-class" academic commission, he could make a reasonable request to Elena - including even some less excessive requests.

Of course, if he can't complete the task for more than half a month after receiving it, then he owes Elena a wish.

"Uh, wait, Mr. Apokalis...... There is one last small step, and one small detail that needs to be completed. ”

Kolmolov scratched his cheek with some embarrassment, and gestured with his thumb and forefinger.

I saw the middle-aged scholar stand up suddenly, exchanged excited glances with several colleagues around him, and several of them pushed four or five small moving blackboards full of various numbers and formulas in front of Gellert Grindelwald.

"You see, you have now used magic to create light in the three-dimensional world. According to what you said before, when a wizard casts magic, he only needs to rely on his mind to do it, and as you know, light has speed......"

"yes, so what? do you need me to help you calculate it?"

Grindelwald frowned impatiently and glanced at the blackboard in front of him.

Kolmolov drew a large cross-cutting arrow on it, on one side of which was written the time and on the other side was the space, and a long figure was drawn out from the zero point, on which a string of numbers was marked.

"No, no, no, we already know it at the speed of light......"

Kolmolov rubbed his hands together and looked at Grindelwald expectantly.

"This is the spatial axis, this is the timeline, you might as well imagine the point of light that you have created as a line that is moving forward on it, I remember you said earlier that magic can produce different wavelengths, I mean beams of different colors......"

"Yes, it's not that hard, so what color of light do you want?"

Grindelwald raised his eyebrows slightly, said slowly, and raised his wand.

Kolmolov shook his head quickly and pointed to the long list of formulas and graphs beside him.

"No, it doesn't have to be that complicated - you take a closer look at the formulas and reasoning, and then try to swap the time and space axes in your mind, so that the speed of light can be reset to zero, and in any case cast a point of light, and see what happens......"

？？？

The wand in Grindelwald's hand froze, and he turned his head in confusion.

If it was a transformation spell, or a slightly more advanced light spell, he knew it very well.

But......

Convert the space axis and the time axis? Reset the speed of light to zero?

This Muggle, what was he talking about...... Some strange foreign language?

Glancing at the wizard who had fallen silent, Kolmolov blinked, thought for a moment and explained.

"Well, by the way, it's actually just a flat light cone - this shouldn't be difficult to understand for you, right? Actually, it's just a matter of thinking about it, this conceptual thing, if you think about it, maybe only magic can reproduce. ”

“？？？”

The corners of Grindelwald's mouth twitched, and after a few seconds of silence, he said slowly,

"I still need to prepare for this, magic is not as simple as you think. Otherwise, you should change your request today, for example, to help you temporarily become a few years younger, or ......"

"I'm sorry, Mr. Apokalis, but if it's a matter of personal needs, we don't have to. ”

Kolmolov sighed with some disappointment, thought for a moment and said.

"Why don't you go to the B section of Academy City, I remember Mr. Alexey and they seem to have a simple little problem to solve, they seem to want to know why the measurement breaks the quantum wave function-"

“...... Well, I see. ”

Grindelwald raised his hand, crossed out the [Light Spell Improvement Request], and said with a blank face.

If nothing else, he should be able to start thinking about how to fulfill the little girl's wish by now.

No wonder Albus had a strange look on his face when he heard him take the commission, these Muggles had crazy ideas in their heads, and it was good that he didn't have to go to Muggle classes like those poor students this year.

Let's hope the little ones at Hogwarts won't cry too loudly this year......

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