The Room of Responsiveness, or rather, can also be called the House of Coming and Go.

This magical house is arguably the most hidden place in Hogwarts Castle.

It comes and goes, and one can only go in when one really needs it.

And when it does, the room is always furnished exactly to the needs of the person seeking help.

Harry had a blank piece of parchment in his hand, which would turn into a map of living spots when the spell was pronounced.

A detailed map of Hogwarts Castle will be displayed, including the lesser-known secret passages, and even the location of everyone in Hogwarts.

However, this room is the only exception.

The Room and those who are in it cannot be displayed on the live map, and the names of those who enter will disappear from the map.

The exits and entrances of the Bing House are not fixed and unique, they can change their location according to the needs of the users.

However, if the room is in use, the approximate location of the room will not be moved.

It's Saturday, and it's the day of the rally, and almost all of the D.A. members of all ages are practicing magic in this room.

But at this moment, the faces of the group of young wizards were all revealing a deep look of worry, and their eyes were invariably looking at the wall where the slight crack was gradually expanding.

Obviously, who was the one outside the room who was about to break through the wall, they almost had a definite answer in their hearts.

Umbridge has recently issued a series of unconscionable education orders as a way to consolidate her rights and status.

Of course, these orders could also indirectly weaken Dumbledore's prestige.

The young wizards of the four Hogwarts houses have never hated a teacher as much as they do now.

Not only the students at Hogwarts, but even the other classroom teachers did not have the slightest affection for this ugly woman who looked like a pink toad.

Even our half-blood prince, Professor Snape, has complained to Dumbledore more than once about his dislike for this woman.

I have to say that Umbridge was able to make everyone in Hogwarts Castle hostile to her, which was definitely not easy.

Oh yes.

There may be a few exceptions, such as Filch the Administrator and his Lady Loris.

If Hogwarts had chosen the least popular person every year, Umbridge and Filch would have been in second place with the highest number of votes.

Filch's nemesis was Peeves, and he had asked Dumbledore more than once to get rid of Peeves.

He also often punished his students by various means, taking the pain of his students as his pleasure, and one of the reasons was because he was a squib who could not use magic.

Therefore, he greatly admired Umbridge's rule in the school, advocated violent interrogation of students, and actively helped Umbridge, and Umbridge approved him to use flogging to punish students in return.

He knew the secret passages and secret doors of Hogwarts second only to the robber quartet, and if it weren't for that, he would have caught the young wizards who were out at night in the middle of the night.

In recent days, under Umbridge's arrangement, he has targeted the young wizards who are close to Harry Potter one by one.

However, to Filch's dismay, no matter how much he coerced and lured, no one was willing to betray Harry Potter and tell him where and what they were meeting for.

Therefore, he can only choose the most conservative method - tailgating.

Finally, Filch, who had spent all his heart, finally waited for the big fish he dreamed of today.

With the sound of smashing the wall one after another, a gap appeared on the wall leading to the corridor.

Bang!

Then there was another loud bang, and a crack in the wall was blasted into a crater two or three people wide.

Everyone's eyes pierced through the thick dust kicked up by the falling rocks, and the little wizards saw the high-spirited, vibrant, and untouchable Umbridge.

At this time, Umbridge was still standing with her most loyal supporter, Administrator Filch.

Soon, there was a ripple of spatial ripples.

Dumbledore's figure appeared out of thin air in front of Harry and several others.

Phantom Shift, to be precise, Dumbledore should be called Apparition.

If you are in A and someone else comes to A from somewhere else is called an apparition, if you are in A with someone, that person leaves A and goes somewhere else is called an apparition.

It's a profound form of magic.

In the wizarding world, apparition is restricted to students aged 17 and above.

However, sometimes there are also doppelgangers, and if you are not careful, one part of the body reaches the target of the phantom shift, and the other part of the body is still in place, which is called "split".

The hapless Ron had suffered such a tragic fate. So, illusion shifting is very dangerous and not easy to learn.

To perform Phantom Migration, you need to follow the 3D principle, which is Destination, Determination, and Deliberation.

At Dumbledore's suggestion, even Lu Li hadn't learned this magic yet.

After all, his knowledge of magic was far weaker than the former's.

In addition to this, there is the magic of Animagus, which Dumbledore and Professor McGonagall strictly forbid to try easily.

Although the transformation technique in the three-body technique mastered by Lu Li also has a changing effect, Animagus still has its extraordinary features in this regard.

In Hogwarts Castle, the vast majority of wizards are unable to use the magic of apparition.

Of course, our Mr. Chancellor has his own privileges.

"Merlin's beard, what's going on here?" Dumbledore first looked at the huge hole that had been blasted open by the spell, and then looked at Umbridge on the other side, and asked with confusion.

The old professor's expression was completely unaware, and his face was serious and a little scary.

I have to say that this respected principal still seems to be a powerful actor.

"What's going on, you'll have to ask your students, right? Also, don't you really know? Umbridge stepped forward and asked rhetorically in a nonsensical tone.

"Harry, what's going on?" Dumbledore turned to face the young wizards of the D.A. Legion.

"Professor, it was all my idea, I brought everyone together." Harry said to Dumbledore guiltily.

Harry knew that Dumbledore had enough to worry about, especially with Voldemort and the Death Eaters who were hiding in the shadows, and now he was causing the professor new problems.

"No, it's not Harry's fault, we all volunteered." Ron also glanced at Dumbledore and said with his head down.

"Of course it's your fault."

Dumbledore's gaze swept over this group of young wizards with a bit of seriousness, but he knew in his heart that these little wizards standing with Harry would probably be the mainstay of the wizarding world's resistance to dark wizards in the future.

Dumbledore paused, looked at Lu Li again, and continued, "The time for the assembly should be at this time of the cloudy day, and you have seriously violated the rules of our club by practicing magic here without my permission!" ”