Thursday, September 30, 1993, Mid-Autumn Festival.

On this day, the students at Hogwarts Castle suddenly realized that the professors today were a little different.

In Potions class, the students of the Lion Academy noticed that Professor Snape had a faint smile of fascination throughout the class. Moreover, in this class, Professor Snape did not grab the students of the Lion House as usual.

As Neville was about to make a mistake, Professor Snape even made a point, just as he usually mentioned Draco Malfoy.

Neville was so frightened by this sudden change that the potion in the crucible that was supposed to be stirred clockwise was stirred twice counterclockwise, making him the first student in the class to perfectly concoct the potion. Therefore, Snape also added an unprecedented point to the Lion House.

Potions class ended in this atmosphere that terrified the students of the Lion and Snake Houses.

On their way to the cafeteria, Harry and the others met Ginny, who said that in Transfiguration class today, Professor McGonagall had conjured a rabbit with a long tail.

Harry and the others were shocked to realize that this matter was not simple, and with Professor McGonagall's decades of Transfiguration skills, it was impossible to make such a mistake.

Combined with Snape's performance just now, the four young wizards got together and muttered, could it be that something happened between Professor McGonagall and Snape? For example, Snape proposes to Professor McGonagall.

By the afternoon, Harry and the others had stopped gossiping, because they already knew the answer.

In Defence Against the Dark Arts class, it was not Professor Lupin of the past who stood on the podium, but Professor Snape, who no one expected.

Standing on the podium of the Defence Against the Dark Arts class, Snape felt that the day at Hogwarts was a bright day today, and Snape liked it so much.

Professor Snape then began to grab the students of the Lion House and lash out, and the points that had been given to Neville were doubled back.

Harry, who was worried about Professor Lupin, wanted to greet him at dinner. As a result, they didn't find Professor Lupin in the cafeteria, and even professors such as Dumbledore and McGonagall didn't appear in the cafeteria, even Zhang Xu didn't appear at the table, and only Hagrid was in the professorship.

The students in the cafeteria soon found out about the situation and began to talk about it.

At the same time, the professors, who did not appear in the cafeteria, appeared en masse on the rooftop of the reading room.

In the center of the rooftop is a cauldron that sits on a fire and is constantly bubbling with steam.

On the long table next to the cauldron were several silver bowls that glowed with magic. One of the bowls also contained most of the blood, and several of the others contained various herb-like items.

Next to the long table, a humanoid creature resembling a wolf sat in a chair and was reaching out to draw blood from Snape, who was standing next to him, with a syringe.

Around the rooftop, there was a circle of sofas and coffee tables, on which the professors were sitting, watching Snape and the werewolves in the middle of the rooftop.

"I think it's as if we're going to make Professor Lupin the main course tonight." Zhang Xu, who was nibbling on a piece of white lotus paste double yellow mooncake, said.

"It seems that the pot is not big enough." Dumbledore also said as he bit into a piece of sweet and greasy rose bean paste mooncake.

Lupin, who sat on the chair and turned into a werewolf, had already drunk the medicine before, and now he could naturally understand the conversation between Zhang Xu and Dumbledore while maintaining his sanity.

Lupin grinned reluctantly, but in his current werewolf state, a smile could scare people to tears.

Snape drew a syringe of Lupin's werewolf blood and put it in a bowl that had been prepared beforehand.

Then it's time for Snape, the Potions Master, to perform.

The cauldron on the fire contained a potion that had been boiling for half a month.

After half a month of continuous addition of herbs and water to boil, the potion has now taken on a strange yellow color.

Snape poured a bowl of blood drawn from Lupin when he was not a werewolf into the pot, then stirred it with a wand with a stick.

Then Snape saw the right moment and put the remaining herbs into the pot for the next hour or so.

The professors around him, as well as Lupin who was sitting on the sidelines, watched in silence as Snape worked on potions, and no one said a word for fear of disturbing him.

When Snape poured the werewolf-turned blood from Lupin on the table into the pot and stirred it thoroughly, the final and most important step in the pharmaceutical process came to life.

Snape picked up the lid from the table next to him, closed the lid and tightened it with a "snap", making sure that the handle on the lid was aligned with the handle on the body, and finally placed the pressure limiter on the exhaust pipe on the lid.

Snape then cast a spell on the pressure cooker, revealing the color of the potion as it became transparent.

The werewolf antidote developed this time had two major problems in the production.

One is that when crafting a potion, the final step requires the addition of the blood of the person taking the pill on the day when there is no moon, and the blood when it turns into a werewolf on the night of the full moon.

In the past, blood was preserved through magic, but as a result, it was easy to cause the blood to be affected by magical energy for half a month, resulting in a certain level of blood contamination.

This time, the blood was preserved by using a cryogenic temperature made of ice cubes, so that the blood could not be contaminated.

Another problem, which has only recently been discovered, is that some potion materials need to be above 110 degrees Celsius before they react with other potions.

According to the previous practice, the open crucible used in the past could not heat the medicine inside to this temperature.

Not to mention that Hogwarts is located in the Scottish Highlands, and the boiling point of water usually cannot even reach 100 degrees Celsius.

So this time, the medicine was made using an extra-large Double Happiness brand pressure cooker that Zhang Xu bought from a supermarket in London. The hand-made bronze dragon hot pot that was presented to Nixon who visited China as a national gift was made by this manufacturer.

Soon, through the body of the pot that had been made transparent by magic, it could be seen that the potion in the pressure cooker began to gradually change color.

When the moon rises in the middle of the sky, the potion begins to emit a faint fluorescence, which means that the potion has been successfully made.

When the fluorescence in the potion no longer increased, Snape moved the pressure cooker to the table and began to cool the cooker.

Once the pressure in the pressure cooker had decreased, Snape opened the lid.

At this time, the perspective magic on the cauldron body had been lifted, and the potion in the pressure cooker emitted a light green fluorescence, and the water vapor continued to rise under the illumination of the fluorescence.

Snape spooned the slightly viscous fluorescent light green potion from the pressure cooker into the cup, then picked it up and walked over to Lupin.

"Drink, Lupin—it's the fate of the werewolves."