In the blink of an eye, it was time for the school to start, and the Hogwarts professors had begun to return to school one after another.

Li Yi also saw many acquaintances, of course, he knew others, but others didn't know him.

Tomorrow is August 31st, and those old students will come to school on this day. Then September 1st is the first day of school for new students.

Then the castle will come alive all at once.

Li Yi decided to hold a big banquet while there were no people yet, so he went to the Headmaster's office to find Dumbledore, as he was going to borrow the school's large dining hall.

At this time, teachers do not need to eat in the hall anymore, their food is specially delivered to the office.

Unless it's a banquet, they don't usually show up in the restaurant.

"What? Sig. If I'm not mistaken, you mean to prepare a grand banquet for the ghosts and portraits of the castle? ”

"Yes, Professor. Tomorrow, except for the first-year freshmen, the other old students will come. I'm going to throw a big party for them while I still have free time today. ”

"And what are you going to do?"

Dumbledore was curious about what this seemingly inquisitive freshman wanted to do.

"I've researched special foods that can be eaten by the ghosts, because they only need to smell the food, so I have the elves prepare some specialized materials. And then for those portraits, I prepared a big picture frame. It's enough for them all to come together. ”

"But I can't hang up that big canvas, so I need your help, Professor."

Dumbledore thought for a moment, and seemed a little hesitant. At this time, the portraits of the previous principals on the wall spoke.

A red-haired headmistress shouted, "Ah, the banquet. I can't wait. ”

The rest of the principals also said that this was a good idea. Compared to the portraits that hung in the castle and could be kept on the door, they were a bit boring.

This time, even the headmaster of the Black family, who didn't like parties very much, didn't say anything to refute.

Seeing this, Dumbledore finally replied, "All right, little Sig. I agreed, but don't you think there's something missing from this kind of banquet? ”

"Oh, Professor, I see. I'm going to invite other professors. Li Yi hurriedly ran out.

Looking at the back of Li Yi running out of the door, Dumbledore's sharp eyes gradually changed to a normal appearance. He would never be making the same mistake, the world didn't need another Dark Lord anymore.

After inviting the professors in the school one by one, Li Yi came to the restaurant and began to check the layout of the banquet.

Dumbledore was already waiting here.

At the back of the usual teacher's seat, a large portrait hung from the very top of the dining hall to a meadow painting that seemed to be working on it, transforming it into a container capable of holding the moving images of Hogwarts.

Li Yi walked up to him, there was still a little time before the banquet began, and he was also very curious about this magic that could create magical portraits.

Dumbledore took out his wand and waved it on the portrait, and suddenly the portrait appeared in various configurations of an open-air banquet.

Then Li Yi saw that he took out a gray potion, the bottle containing the potion was very small, and Li Yi estimated that the potion in it would not exceed dozens of drops even if it was full.

Dumbledore poured two or three drops out of it with great precision, levitating it in the air, and then as he cast it, the magical potion was dripped onto the oversized painting.

Suddenly, Li Yi felt the difference in the huge painting in front of him. It's like a sudden shift from the gun version to the Blu-ray quality.

"What's that?" Li Yi couldn't help but ask, he thought that this might be the reason why some of the portraits of Hogwarts and those ancient families were almost indistinguishable from real people.

"Developing potion."

Originally, Li Yi didn't think that Dumbledore would answer him, but he didn't expect him to say it.

"Developing potion?" Li Yi was a little puzzled, this was a new word for him. So I don't know what it is.

"That's why the person in the portrait can move. That's because of the fact that a development potion has been dripped into the portrait. It's a magic potion that is getting less and less available now. ”

"But the picture in the Daily Prophet?" Li Yi sometimes uses the Daily Prophet to pass the time these days.

"It's up to you to think about it." Dumbledore shifted the subject elsewhere, "Do you think we should add something to this painting?" ”

As he spoke, he waved his wand, and there was no application of the spell at all, and the painting in front of him was already full of all kinds of food.

"Is this true?" Li Yi looked at the almost identical types of food that appeared in the picture and the ones he had seen in the kitchen, and muttered.

"Who knows?" Dumbledore looked like a crazy old wizard at this time.

After a few moments, the remaining ghosts and professors arrived in the cafeteria.

The house-elves came to the restaurant with the "food" that Li Yi had specially prepared for them.

"Is this the 'food' that Little Sig has prepared for us?" Nick, who was almost headless, said with a smile, this Gryffindor resident ghost looked a little better than the last time Li Yi saw him.

"Of course, but Sir Nicholas, I think you can call me Mr. Ream." Li Yi joked with him seriously.

Now he only has memories of his original world and the present, and it seems that he should belong to the camp of neutrality and goodness. The memories of his previous experiences could only affect him as instincts.

"What is this?" Professor McGonagall was there, unwrapping the food packages for the ghosts that the house-elves were carrying. Then I saw something cylindrical.

Li Yi took the long strip in the house elf's hand, and then stretched one end of it to the fireplace flame next to it.

As one end of the object ignited, McGonagall noticed that it had a strawberry smell.

"I smell something delicious." At this time, a funny-dressed figure suddenly flashed next to him, it was Peeves.

"Alright, Peeves. It's yours. Li Yi stood this thing directly on the table.

This kind of thing is called incense candles in his hometown. Now it's perfect to feed these ghosts. Li Yike has painstakingly studied many flavors. There are strawberries, lemons, tomatoes, ......