The magic of a portrait or photograph is mainly related to two factors.

The first is its creator.

It's like those portraits in the Daily Prophet, or the photographs of Professor Gilderoy Lockhart that once plastered the entire Defence Against the Dark Arts office, can show a certain magic...... It's just limited to casually moving or waving, and shouting some "slogans" in an empty way.

The portraits posted on the campus, such as those of the Fat Lady and Sir Cadogan, are more magical due to the sorcering spells of the wizards who painted them...... They can possess a certain level of consciousness and can easily communicate with wizards.

The second point is related to the strength of the wizard in the portrait.

Generally speaking, the more powerful the wizard, the more powerful the portrait painted after death.

For example, the portraits of these former principals...... Not only do they have autonomous consciousness, but they also have memories of when they were alive. They are free to "go door-to-door" between the portraits in the school, and they can even come and go between their own portraits (even if it's a portrait on the other side of the ocean).

Every headmaster in the history of Hogwarts is a wizard with a lot of fame, and most of them can occupy a small chapter in the book "History of Magic". The portraits of the principals after they leave office or after their death are usually painted by the best artists and then pasted on the wall of the principal's office.

Therefore, these portraits can retain the character and memory of the principals during their lifetimes, and they can independently provide certain suggestions to the current principals, and use their ability to travel through the portraits to convey messages to the current principals......

Of course, not every Headmaster's portrait can be affixed to the Headmaster's office, and hanging his portrait in the Headmaster's office after his death was first proposed by Brian Geigwilder, the fourth Headmaster of Hogwarts, on his deathbed in 1098 AD, and was approved by every Headmaster since.

The first three principals are not among them, so there are always three empty portraits on the top floor of the portrait wall.

......

Jon patiently tidied up the portrait wall and removed dust from each portrait.

Looking at the jubilant old headmasters, hugging each other in celebration, and listening to their noises, Jon shook his head helplessly, and he turned to the other side of the room.

"Reparo!"

Jon waved his wand, bringing the seven-and-eight-floor silverware back on the floor to the table and back to normal.

After about a quarter of an hour of busy work, the last silver mouse was put back on the table unharmed, and the headmaster's office seemed to be back to its former state.

It's a pity that Professor Dumbledore is no longer there, and there is no trace of Fawkes on the phoenix shelf on the table.

"Professor Dumbledore, I was called to his office just to be a janitor, right?" Jon muttered as he sat down in Dumbledore's seat.

The cushions under this seat are soft, and I have to say that it is quite comfortable to sit on.

As he sat down, Jon boredly opened Dumbledore's drawer to see if the dear Headmaster had left any "relics".

In the drawer on the left is a drawer of all kinds of sweets, all the styles you can find in the "Duke of Honey" candy store.

Jon stuck out his tongue and closed the drawer again...... He opened the drawer on the right, and inside was a brand new pair of woolen socks, which Jon quickly closed again, deciding not to invade Dumbledore's privacy......

Then, Jon went to the bookcase under the phoenix shelf, opened it lightly, and looked at the hundreds of books arranged in different categories. These were the books that were once in the collection of the Headmasters of Hogwarts, and Jon took a copy of "Cutting-edge Dark Arts Revealed" from them...... No, it seems to have been given to him by Dumbledore as a gift.

I have to say that Jon has long coveted the collection of books here...... Most of the books in them can't even be found in the forbidden section of Hogwarts.

But now that Dumbledore is no longer here, Jon isn't ready to be polite...... He was now thinking about how to avoid the attention of these principals and secretly borrow a book or two from it to go back to the dormitory.

While thinking, Jon opened a book of "Top Potions - Tips for Improving the Success Rate of Potion Configuration".

......

It was half an hour before Jon emerged from the esoteric content.

Having spent enough time in the Headmaster's office, Jon suspected that staying any longer might raise suspicions...... Because he is the assistant to the principal, it would be very suspicious not to appear in front of other Slytherin students for a long time.

And those Slytherin friends may think that they have been attacked by some angry Gryffindor student, and then they will be all over the school looking for themselves!

Jon stood up as he casually shoved the Top Potions into his arms.

"Books are forbidden to be taken out here!" Principal Phineas Black's lazy voice suddenly sounded behind him.

"Dear Headmaster Black......" Jon hurriedly smiled, "can you be more accommodating?"

"No!" a stern voice came from the top of the portrait wall.

Looking at Principal Oliver Cromwell's gloomy face, Jon quickly put the book down.

"You can come back in the evening and watch it again!" Principal Phineas Black continued in that languid voice, "If memory serves, Armando is an expert in potions, and I used the elixir he dispensed...... That's a great feeling! He can give you some advice. ”

"That's right. Principal Armando Duppet, who looked frail on the side, nodded.

"But I didn't have a good reason to come here in the evening?" Jon shook his head in embarrassment.

"It's easy!" Principal Phineas Black suddenly had a spirit: "You can make an invisibility cloak, I used to make one when I was exploring Algeria when I was young, and it helped me get rid of I don't know how many ......"

"You've blown this about this ten thousand times, don't you bother, Phineas!" Principal Dexter Foster on the side shook his head disdainfully: "You need a full invisibility beast fur to make the invisibility cloak, you let Jon get it?"

"Boy, listen to me, you should learn the illusion spell, although the effect is not as good as the invisibility cloak, but it still works to deceive people at night......" Principal Dexter Foster continued, looking excited.

。 m.