From Azkaban to Hogwarts.

"My fans?"

Sirius asked instinctively—at this moment, he even had a slight urge to escape Hogwarts.

"Yes, your map has taught us a lot!"

"map?"

"It's that Marauder's Map! We cracked how to open it, and then used it to discover many secret passages in the map, and even some things that the map didn't have, like this place, the Room of Requirement!"

How did you get it?

Although he still leans towards escaping this place, Sirius isn't so determined when it comes to his prized map.

“From Filch…”

……

"So, you ultimately chose to sell the map?"

At the end of the story, Sirius looked at the two of them with a look of utter disappointment.

"That was Hogwarts' pursuit of freedom, a fight against the school rules. You sold it to a professor for such a small amount of gold?"

...

The twins were stunned. Although they had regretted their actions, they had never considered the issue so deeply.

"Professor William is different..."

“But if I remember correctly, you just said that last year, most of your confinement was with Professor William, and this year, he's been giving you even more targeted attention, including unprecedented weekend classes at Hogwarts…”

Sirius looked at the two silly kids—"So what's different about Professor William?"

"He's very special... well, he didn't put us in solitary confinement just for the sake of it, but to help us improve..."

The voice grew softer and softer, clearly indicating that even the speaker wasn't entirely sure what they were saying.

"No professor at this school doesn't want their students to improve, including that snotty-nosed guy from Slytherin!"

'At least there's Lockhart from last year—'

The twins thought about it, but Lockhart was the exception.

"Professor William made sure all his students passed the OWLS exam last year!"

After a long while, the two finally found an excuse.

"Passed all OWLS exams?"

"Yes, everyone at this school knows."

'Harry seems to have exams coming up soon too, so... what am I thinking?'

Sirius shook his head. "Okay, but what does that have to do with him having the Marauder's Map?"

-

[For now, we can schedule two major rounds of review, although I prefer three. However, due to the curriculum, there's too much to learn in fifth grade, leaving limited review time.]

[Let's skip the OWLS rally. We can talk to Professor McGonagall and fill in the details later. After all, I only participated in it, and my impression of it isn't very strong...]

"Boom boom boom!"

"Please come in!"

William stopped writing, called out towards the door, and naturally pointed his wand at the door, preparing to jump and dodge.

"Excuse me, Professor, I have a spell I haven't quite figured out yet..."

'How many times is this? A new prank by the students?'

William took the documents with some skepticism and began to study them.

That shouldn't be the case. Putting aside the fact that Hogwarts students are more independent and prefer to solve problems in the library, the sheer number of exam papers piled up in his office is enough to make these kids unwilling to come.

What's going on today? Why are there so many students? And they're coming in batches. Are the twins trying to get the sixth grader to stay occupied and not give him time to work on the test?

It's no wonder he suspected the brothers immediately; they made too many similar little mistakes.

...

"Okay, that's settled."

"Thank you, Professor."

The student who asked the question left quickly, leaving William puzzled—couldn't such a short time have delayed him from preparing the exam?

-

"How was it? Has your problem-solving method changed? What about your tone? What about the office decor?"

When the students who came to inquire returned, a group of children anxiously asked—they still remembered Professor William's investigation, and the possibility of the Imperius Curse was now before their eyes.

“I heard from my dad that the professor and his colleagues had applications to visit abroad. I didn’t think about it at the time, but then I remembered—the professor and his colleagues went to Durmstrang on official business. Could they have been cursed?”

"Exactly, exactly. They're not even giving exams anymore—the fifth graders go back to the lounge and start talking about it at length. Don't they have any suspicions?"

"Don't count on them. They'd rather not take the exam. Who's next? Observe carefully, find a good excuse, and stop thinking about problems!"

Chapter 331 is in chaos.

Inside the Room of Requirement, the small room summoned by the twins.

The three people who were most troubled by Professor McGonagall's Gryffindor rankings, all of whom were in the top ten, were chatting and laughing together in a relaxed atmosphere, like old friends who had been chatting and bragging for years meeting up in person.

Although they had never spoken before, Sirius's name had been defamed in the newspapers for more than half a year.

"Interesting, interesting, really interesting."

While it's certainly worrying that the Marauder's Map might end up in Dumbledore's hands through Professor William's, the loopholes in the administrator Filch's management and the remaining loopholes in the revised school rules are endless topics.

"So you guys still have the advantage of tacit understanding. No matter how hard we tried back then, we could never do what you did—Lupin was too much of a drag on us."

Sirius couldn't help but speak up when he heard how the two of them had tacitly stolen the Marauder's Map from Filch's loot.

They have a good relationship, but Lupin is definitely the worst at playing pranks—mainly because Lupin is the prefect, and he's always a bit hesitant to do anything.

But what can you do? Are you going to kick the worst player out of the next game when you're playing with friends at an internet cafe?

No, we can't let him take advantage of us.

"Professor Lupin? Probably like Ron?"

Sirius Black loosened up, and the twins were naturally no slouch either—"You wouldn't believe it, Mr. Black, that little idiot Ron, he's just...unbelievable..."

-

"Mr. Potter!"

Harry was now extremely uncomfortable; the light emanating from Professor McGonagall's glasses was practically murderous.

He could only try to lower his head even further, in order to show that he had realized his mistake.

"Professor Snape is furious—he's been yelling at me in my office for a full fifteen minutes!"

"Those three kids are still unconscious in the school hospital! And you're only in third grade, Potter!"

First Sirius Black, then Harry Potter; she even felt she needed to drink some potion to calm herself down, otherwise she would definitely faint from anger.

“I didn’t use dark magic, Professor…”

Harry muttered aggrievedly in a low voice, "Merlin's socks were something Malfoy and the others did to him, it wasn't like he was looking for trouble!"

While beating three people to the point of needing to be sent to the hospital was a bit excessive, it's been so long, how could they not have woken up yet!

"You still want to use dark magic?"

"I haven't studied black magic, Professor!"

Suddenly remembering the warning, Harry quickly retorted, "Absolutely stay away from Dark Magic! Even if you really know how to use it, don't use it!"

Professor McGonagall stared at Harry with a scrutinizing gaze for a long time, only stopping when she heard footsteps outside.

"No matter what, it's still too much, Potter. You're not dueling."

Professor McGonagall's tone suddenly softened—which made Harry immediately doubt the identity of the person who had just left.

But the most important thing right now is obviously not that, but to avoid more severe punishment. This is the nonsense the twins usually talk when they relax after training, but for some reason, it's popping up now.

The Malfoys and their friends came to provoke Harry about Sirius Black cleaning up with Filch, but after that idiot Goyle threatened him with his wand, Harry instinctively retaliated.

And that's how it turned out.

"How exactly did you do that?"

“Gol made the first move. He seemed to be going to use a Disarming Charm, and then I instinctively used a Disarming Charm.”

Harry answered instinctively.

"Disarming spell?"

Can a disarming spell inflict this much damage?

"The wand flew over, but Crabbe tried to use a curse I couldn't recognize, so I dodged it and retaliated with a disarming charm."

"While they were in the chaos trying to grab their wands, I cast a disarming spell on Malfoy, who had just pulled out his wand—he was slow to draw his wand, which gave him the opportunity."

"All three disarming spells worked, so how did they get injured?"

"They wanted to use their fists, professor. So I..."

To use a wand against someone without one is the most basic training in the wizarding world—in the British wizarding world, wands are not open to any non-wizard creatures, and as a professional professor, William naturally taught this.

Even a third-year student, with their weakened strength and numerous obstacles, could easily kill a large number of magical creatures.

There was no other way; Harry was the most talented student William could find in this field, and he had put a lot of effort into the theory this year.

Theory must be translated into practice, and only after experimentation can it continue to develop—this wasn't entirely William's favoritism. The headmaster, vice-headmaster, and Minister of Magic had all raised concerns about Harry's safety on campus. As a professor of self-defense, could he refuse? After much thought, the only solution was to focus on improving the students' abilities.

Sirius's threat was right there; he couldn't just hold back when teaching people, that wasn't something a professor should do!

As for Sirius's threat being removed—could he possibly erase the strength that someone has cultivated?

-

"Ah!"