Felix stared at the green snake skin in front of him, thinking about how to make it.

'First, we need to deal with the impurities. This step can refer to the operation of the Binding Vine. However, the characteristics of the basilisk and the Whomping Willow branches are different...'

...

February 14th, Valentine's Day.

When the young wizards went to the auditorium for dinner, they found that the four walls were covered with large and dazzling pink flowers, and many heart-shaped confetti kept falling from the light blue ceiling.

Even the corridors were decorated with holly and mistletoe.

Many young wizards and witches smiled foolishly while eating.

On this day, professors will turn a blind eye and will not meddle in other people's business, but don't expect them to smile at you.

"I think Percy must be jealous when he sees this." Ron pointed to a few couples holding hands in the distance and said - he and Percy had reconciled, but he always couldn't help but mock him.

But all this had nothing to do with them. Harry, Ron and Hermione had breakfast and hurried to class.

Time came to the evening.

They dragged their tired bodies to the hall, where many young wizards were already sitting at the long table.

As expected, they saw dwarfs dressed as Cupids, but they stood on a temporary high platform in a proper manner, playing the harp with gloomy faces - it was not bad to listen to, at least it did not make people want to escape.

The two dwarfs who looked the shortest seemed to have not mastered this skill yet. They stood two or three meters away from the door of the hall and took out handfuls of colorful debris from their pockets behind them. Any two or more young wizards who passed by them in a group would be hit by them.

Harry and the others saw Dean and Neville, who were walking in front, bathed in the rain of colorful debris. Neville stood there awkwardly, and Dean uttered an unclear mutter and ran away quickly.

A burst of laughter broke out at the long table.

Neville scratched his head and laughed, and his round face was stained with a layer of ruddy.

Harry, Ron and Hermione quickly went around the wall to avoid the dwarfs.

Soon, groups that didn't know the truth were tricked. If they were a couple, they would just smile generously and not feel awkward. But if they were just friends, the expressions on their faces were enough to make the little wizards beside them laugh for a long time.

In the teacher's seat.

Belby looked at the lively scene and said with some surprise: "I didn't expect that Hogwarts also celebrates Valentine's Day now? You know, I was hiding at that time."

Felix said: "Maybe it's to welcome you."

"Don't be funny, Felix." The middle-aged wizard said, he turned his head and looked around: "Why don't I see Professor Snape?"

"He won't like this scene and may be late."

"Yes, he looks quite serious." Belby said: "The last meeting was too short, we didn't talk in detail, some of his ideas are very insightful..."

"Is it about the wolfsbane potion?"

"Yes, he seems to have an idea to improve the wolfsbane potion. I hope we can cooperate, and I am willing to provide the initial research data."

"Didn't you think of inviting others before?" Felix asked curiously.

"I thought about it, but... not many are interested," Belby said regretfully: "Professor Slughorn did make some suggestions, but he refused to get involved."

"Slughorn?" It was not the first time Felix heard this name.

"Yes, he used to be my Potions professor, but now he is retired and his whereabouts are uncertain, so it is difficult to contact him."

After more than ten minutes, the professors arrived one after another.

Professor Flitwick sat in the empty seat next to Felix, and Professor McGonagall sat next to Flitwick.

Snape chose a seat far away.

Just when Harry was very bored listening to the dwarf playing the same song for the seventh time, the dinner finally began.

Dumbledore knocked on the cup to quiet the little wizards, and he introduced their new professor to everyone with a smile on his face.

"I have the honor to introduce to you, Damocles Belby, who generously agreed to fill the vacancy in the Defense Against the Dark Arts class this year."

The little wizards applauded sparsely, and the previous professors had consumed their enthusiasm.

Belby stood up and bowed to everyone. "It's an honor to return to Hogwarts after so many years. Although I will only stay here for half a year, I will do my best to fulfill my duties..."

Belby's words were very sincere. His appearance and dress were not as dazzling as Lockhart's, and he wanted to attract everyone's attention. This directly won the limited favor of the little wizards.

The most direct evidence was that when he sat down, the little wizards applauded in a neat and loud manner.

Snape, who was sitting on the side, had a stern face and stared coldly at the high-footed glass in front of him.

The other professors were all welcoming. Although it didn't make sense that Belby won the Order of Merlin for inventing the wolfsbane potion, but came to teach the Defense Against the Dark Arts class, he was at least a real talent. It was better than

Lockhart who had been arranging a pajama party.

Various delicacies appeared on the long table, and the little wizards who were tired all day began to feast on them.

Professor Flitwick, who was sitting next to Felix, talked to him in a low voice.

"Felix, I heard that you are using a new teaching aid in your class?"

"Yes, Filius, I call it answer parchment."

Professor McGonagall, who was sitting one seat away, slowed down the speed of chewing food calmly.

"Don't mind me saying this - I saw it from students, and I found it is also very useful for spell theory."

"Do you want to use the answer parchment in the spell class?"

Flitwick stammered, "There are only a few months left before the wizard level exam, but the theoretical results of some young wizards are still worrying."

He looked at Felix: "If you need any help from me..."

Felix laughed softly: "Filius, I have no objection to this. However, I did encounter some difficulties - if I want to add more subjects, I must improve on the original basis. This is not something I can solve alone. I would like to invite you to study with me."

"I am very happy to." Flitwick said cheerfully.

Professor McGonagall found the right moment to say, "I can help too."

Felix said, "Minerva, I have thought of adding all the subjects of Hogwarts, but this requires a prestigious professor to make this happen."

Professor McGonagall thought for a while, "I will find out what other people think, which is a good thing. But how do you integrate so many subjects on a piece of parchment?"

"Use synchronization magic," he explained, "The parchment in the hands of the little wizard is just a simple magical product for receiving information, and the magic runes and alchemy methods arranged on it are relatively simple. I also have a scroll made of dragon skin, which contains the wizard level examination questions in recent years." "

But this also means that the young wizards can only use the answer parchment at Hogwarts."

"Well, one to many..." Flitwick pondered, "I seem to have heard of this idea from someone."