After Lupin drank the potion handed to him by Snape, he changed back to his original human form at a speed visible to the naked eye.

But Lupin paid a price - his mouth was burned by the hot potion.

As soon as the pressure cooker had cooled down to a temperature that could be turned on, Snape stopped cooling the cooker.

Then, as soon as the lid was opened, Snape scooped out the potion and handed it to Lupin.

The professors around them didn't realize that the temperature of the medicine at this time was about 90 degrees Celsius.

Fortunately, Lupin drank the potion in the werewolf state, and with the werewolf physique, his mouth was just hot, otherwise he would have to lie in the school infirmary tonight.

Snape was pleased to see that he had been able to trap Lupin, and he didn't feel hot when he held the cup full of potion.

In the days that followed, everything went according to plan.

Professors give daily lessons to their students, and students desperately exude youthful hormones outside of class, and Filch battles wits with students who break school rules.

As the saying goes, there is competition to make progress. In the course of the struggle, Filch and his students, especially a twin brother, grow in the level of magic.

The criterion for evaluating the mastery of the illusion spell among students is to play a prank in front of Filch after casting a spell on themselves.

Lupin drank a glass of werewolf antidote named "Elune" every night before going to bed for half a month, and had to go to Madam Pomfrey every morning to check his body.

In the last week of October, the students found out that the Defence Against the Dark Arts professor had been replaced by Snape, and Lupin was in the Headmaster's office all day, under Dumbledore's watch, preparing for the first full moon night after treatment.

If Lupin can successfully pass this hurdle, it means that "Elune" has been successfully developed.

The professors had calculated that the profits from treating werewolves in the British wizarding world alone would double their bonuses and benefits. Not to mention the werewolf villages in the United States, as well as werewolves around the world.

The salary of a professor at Hogwarts School of Witchcraft and Wizardry consists of a base salary, a teaching seniority salary, a class hour salary, a performance salary, a special allowance, and a welfare allowance. The basic salary, teaching salary, class hour salary, and performance pay are covered by the Ministry of Magic, the special allowance is borne by the school board, and the welfare allowance comes from the Hogwarts small treasury.

And all the profits from Hogwarts through the transformation of scientific research results go directly into the small coffers of the school, and then part of them become welfare allowances for professors. It is this part of the welfare allowance that makes the total income of professors go up one by one.

The high income makes the professors full of energy, and the enthusiasm of the professors is converted into the assignments assigned to the students.

Zhang Xu still admires the potential of Hogwarts students, and they can still find a lot of time to participate in extracurricular activities after completing their homework when they increase the amount of homework. It seems that there is not much work now, and there is still potential for further increases.

At this moment, Zhang Xu is in pain and happy. On the one hand, he was able to give students homework with great enthusiasm, and at the same time, other professors were also energetic to give him a lot of extra homework.

Although Dumbledore waived all of Zhang Xu's homework, he had to take seriously the homework that the other professors had prepared for him and asked him to complete when he had free time.

In the Muggle Studies Professor's office, Professor Kereddy Bubbagi's desk was not used, after all, Professor Bubbaji was only suspended without pay, not resigned. So Zhang Xu got himself another desk in the office.

Now Zhang Xu, who has to prepare for classes, change homework and write homework, and prepare for next year's high school entrance examination, has little time to spare.

The reading room was handed over to Zhang Qiu at the beginning of this semester.

He also participates in the activities of the other two student clubs only when he has free time.

Zhang Xu hadn't participated in the magic practice in the Room of Requirement every Saturday night for two or three weeks, and the mentoring had been lost to the Harry trio.

And every now and then, a professor comes to give me guidance.

However, Zhang Xu didn't look for things, but things found Zhang Xu by themselves.

"Third-year students have access to Hogsmeade, however, my aunt and uncle did not sign my consent form." Harry, who came to the office to look for Zhang Xu, said to Zhang Xu nervously, "Zhang, do you have any way?" ”

"You know, Harry." Zhang Xu shrugged, "There are only three people in this world who can sign your consent form. Your aunt and uncle, and your godfather. No one else, not even the Minister of Magic or Professor Dumbledore, could sign it. ”

On the train to school, Lupin told Harry that Sirius was Harry's godfather.

Harry's whole face contorted when he heard Zhang Xu mention his godfather.

Then Zhang Xu said: "Give me your consent form, there is a way to maybe give it a try." ”

Harry, who seemed to have grasped a life-saving straw, immediately took out the consent form from his schoolbag and handed it to Zhang Xu after hearing Zhang Xu's words.

Zhang Xu took a piece of paper and wrote a letter, then rolled it up with Harry's consent form and handed it to Harry.

"Have Hedwig send it to Bill Weasley, and I'll let him find a way to find your uncle. There are a lot of problems that can be solved with one bag of gold, and if one bag can't be solved, then two bags. None of the problems that can be solved with gold are problems. If that happens, just return the gold to Bill. Zhang Xu said to Harry.

For Harry, he had no shortage of money outside of his body, and the wealth accumulated by the Potter family was in his hands. Not to mention the gold coins in Gringotts, let's just say that the house where Harry's parents lived in Godric's Valley is now filled with Harry Potter's name on the title deed.

A while ago, when the Weasleys were preparing to open a broomstick shop, they had a headache due to a lack of start-up capital.

Later, with Zhang Xu's matchmaking, Bill Weasley approached Harry, who soon told Harry to invest in the broomstick shop, and Harry became the second shareholder of the store.

For the foreseeable future, Harry will be able to make a fortune from dividends.

Young and rich, the family structure is simple to the extreme, and the family has a long history. Unbeknownst to him, Harry has become the best choice for the son-in-law of many wizarding families.

These wizarding families are waiting to see if Voldemort disappears in a few years, and they will let their daughters dig into Ginny's corner.

After sending off a bewildered Harry, a red-haired little head walked into Zhang Xu's office.

"Ginny, what's the matter?"