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

Three people who ranked among the top ten in Gryffindor rankings for Professor McGonagall's biggest headaches were chatting here, and the atmosphere was harmonious, as if netizens who had been chatting and bragging for many years met offline.

Although they had not chatted before, Sirius's name had been slandered in newspapers for more than half a year.

"Interesting, interesting, really interesting."

Although it is a bit disappointing that the Marauder's Map probably fell into Dumbledore's hands through the hands of Professor William, the loopholes in the management of administrator Filch still remain in the revised school rules.

The number of loopholes that can be exploited is endless.

"So, after all, you still have the advantage of tacit understanding. No matter how hard we tried back then, we couldn't do what you did - Lupine was too behind."

When he heard that the two of them had tacitly agreed to steal the Marauder's Map from Filch's loot, Sirius couldn't help but say it.

A good relationship means a good relationship. Lupine was the most fooled when he was playing pranks because he didn't run away - mainly because Lupine was a prefect and he was a bit forward-looking and hesitant in everything he did.

But what's the solution? Is it possible that the person who cheats the most when the Internet cafe is hacking will be kicked out in the next game?

It can't be done, he still has to let him do the trick.

"Professor Lupin? Probably like Ron?"

Sirius let go, and the twins were naturally not bad either - "You don't know, Mr. Black, Ron, that little idiot, is simply..."

——

"Mr. Potter!"

Harry was on pins and needles now, the light projected from Professor McGonagall's glasses in front of him was simply killing.

He could only try his best to lower his head lower, and lower again, to show that he had realized his mistake.

"Professor Snape is very angry now - he ranted in my office for a quarter of an hour!"

"Those three children are lying in the school hospital without waking up! You are only in the third year, Potter!"

First Sirius Black, then Harry Potter, she even felt that she needed to drink a little potion to stay calm, otherwise she would be so angry that she would pass out.

"I'm not using dark magic, Professor..."

Harry said aggrievedly in a low voice - Merlin's socks were blocked by Malfoy and the others, and it was not him who took the initiative to cause trouble!

Although it is a bit excessive to beat three people to the hospital, but it has been so long, how could they not wake up!

"You still want to use dark magic?"

"I've never studied the dark arts, Professor!"

Harry, who suddenly remembered the warning, quickly defended - 'Absolutely draw a clear line between black magic and black magic. Even if you really know how to use it, don't use it!'

Professor McGonagall stared at Harry for a long time with a scrutinizing eye, and did not stop until the sound of footsteps came from outside.

"Anyway, it's still too much, Potter, you are not dueling."

Professor McGonagall's tone suddenly softened - this made Harry suddenly doubt the identity of the person who had just left.

But the most important thing now is obviously not this, but to avoid more serious punishment. This is a nonsense the twins usually talk about when they relax after training, but for some reason, it pops up now.

When Malfoy and the others came to provoke him, they were talking about Sirius cleaning up with Filch. However, after Goyle threatened him with his wand, Harry subconsciously fought back.

Then it became what it is now.

"How on earth did you do that?"

"Goyle took action first. He seemed to be using the Obstacle Curse, and then I subconsciously used the Disarming Curse."

Harry answered directly and subconsciously.

"Disarming Charm?"

Can a disarming spell hurt someone like this?

"The wand flew over, but Crabbe tried to use a curse that I couldn't identify, and then I ducked and fired another disarming spell."

"While they were in confusion trying to grab the wand, I gave Malfoy a disarming spell as he pulled out the wand - he was slower in pulling out the wand, which gave him a chance."

"All three disarming spells were successful, how did they get injured?"

"They wanted to use their fists, Professor. So I just..."

The most basic training in the wizarding world is to fight those with wands and those without wands. In the British wizarding world, wands are not open to any non-wizard creatures. As a professional professor, William has naturally taught this.

Even for a third-year student, the lack of strength and numerous obstacles are enough to trap a large number of magical creatures to death.

There is no way, who makes Harry the most talented student in this area that William can find, and he has worked hard on theory this year?

Theory must be transformed into practice, and only after experiment can it continue to develop - this is not entirely William's favoritism. The principal, deputy principal, and minister of magic have all raised the issue of Harry's safety at school. As a self-defense professor, how can he refuse?

?After much deliberation, I can only work on the strength of the students.

Sirius's threat is there, he can't hide it when teaching people, that's not what a professor should do!

As for the fact that Sirius' threat was canceled later - could he wipe out the strength that people have developed?

——

"Ah sneeze!"

In the classroom, William sneezed and continued to watch a group of sixth and seventh grade children dumbfounded.

After discovering something was wrong, he immediately cast a marking spell on the child who was making excuses, and followed the clues all the way to this classroom.

After learning the excuses of these children, he felt bad.

'Isn't it just that the lower grades have to take one less exam, why do you guys make such a fuss out of a molehill?'

"If you continue to be so leisurely, I'm not sure if you need more homework - okay, go back to the lounge!"

After the verbal threat, he left the classroom expressionlessly.

Something like this happened in the sixth and seventh grade - as expected, it was because of too little homework.

"The upper grades are causing trouble, where are the lower grades?"

Sighing, William thought of the two careless masters again - the twins had not caused trouble for a while, and judging from the time pattern, they should be plotting something again.

"Ah sneeze!"

He couldn't help but sneeze again, and after briefly checking himself to confirm that he was not cursed, he walked towards the Room of Requirement suspiciously.

Since the two idiots sold him the map, what they were planning to plot was probably in the Room of Requirement, a place not shown on the map - William used the Disguise Charm to investigate the traces left by their preparations many times, and judged the matter.

If it is not serious, we will not take care of it. After the incident occurs, we will directly arrest it through other means. It has always worked.

——

"Calm down, Phineas."

In the headmaster's room, Dumbledore tried to comfort the portrait of Phineas Nigellus Black - the former headmaster was almost roaring at this moment.

"How did Narcissa Black teach her children?"

His voice was extremely penetrating, "The Malfoys dare to say that the Blacks are poor street sweepers?"

"While the reputation of the Black family is spreading throughout the wizarding world, the Malfoys are still thinking about how to use smallpox against their tenants! Those upstarts dare to laugh at the Black family!"

"Their inferior blood!"

"..."

"Those upstarts...!"

"..."

Dumbledore was very careful not to remind the former headmaster that technically, Draco Malfoy also had the blood of the Black family.

If this theory is not true, then Voldemort himself is a Muggle-born wizard.

If these words were said out loud, the former headmaster's voice could probably be raised higher, but at that time it would be difficult to appease the most unpopular headmaster in the history of Hogwarts.

Although as the current principal, he has the right to shut up the oil painting, Dumbledore will not do this unless it is absolutely necessary - the other portraits are still helping to persuade the old man to calm down.

——

"Catch what's going on or not?"

At the door of the Room of Requirement, William became entangled - he would probably be able to catch him if he caught him, but don't think about catching him in the Room of Requirement in the future, but if he didn't catch him, it would probably be difficult to use this place again.

Not to mention that the twins will be promoted to sixth grade after this school year and most likely will not choose his class. However, there is a matter of arresting people in the Room of Requirement. It is probably about to be exposed. Those two stupid kids are not that stupid. They will catch them a few more times to learn.

You are smart enough to understand why you need to change places.

'Speaking of which, they are almost finished fifth grade. Students are growing up really fast...'

William sighed, and then opened the door of the Room of Requirement.

'But it's still close - normally I should try to get the house to reject me...'

He shook his head and pointed his wand inside, "Okay, the prank is over, it's time to go to confinement!"

The three people in the room looked back at him at the same time, leaving William stunned for a moment - why is there one more person?

"We're not playing pranks, Professor!"
To be continued...