At Hogwarts, each Headmaster has his or her own management style.

The former Headmaster Dumbledore was not so tight on the details of Hogwarts because of his perennial dedication to the cause of anti-ambush. So in recent years, Zhang has had a lot of room to make trouble.

Now that Professor McGonagall is in power, the students are beginning to notice that the shackles are tightening on their heads. At least now the students who are on the night tour are not so easy now, and Mai Meow, who used to turn his eyes open and close his eyes to this matter when he was not the principal, now does not know which corner he will suddenly jump out of, and then deduct points for those students who are caught.

At the same time, Professor McGonagall is strict about Hogwarts' bottom line that "women don't give birth, men don't die", and she has recently caught several pairs of students who have almost missed a shot.

So when she received the news of a ghost entering Professor Zhang's dormitory before going to bed, she immediately went to the dormitory of the key target to arrest her.

Professor McGonagall's face was a little gloomy along the way, and she told Astoria about Zhang Xu's help with their sisters' curse, in order to reassure her.

Astoria wants to thank Zhang Xu for the matter, Professor McGonagall is also prepared, but now in the middle of the night three watches + dormitory solitude + lonely men and widows, what will happen under this kind of favorable time, place and people, she has not seen it in her decades of education career.

Especially for a restless guy like Zhang Xu in this regard, Professor McGonagall has almost no trust in him. Back then, he Zhang met Fleur in Beauxbatons or she brought it herself, and she didn't hear of the gossip among the students, and the girls who wanted to have something with Zhang over the years were enough to play a Quidditch match, although those girls didn't succeed. But this doesn't mean that you can take Zhang lightly, three years ago he dared to bring his girlfriend back to the dormitory with the tacit consent of the two principals, and in the past two years, he has attacked other professors, and this year he hooked up with the tenants of the family, and even his niece almost got in......

As she walked and thought, Professor McGonagall's wand appeared in her hand at some point.

Originally, Professor McGonagall wanted to push the door directly into Zhang Xu's dormitory, but at the last moment, she suddenly remembered what happened to Snemeow back then, and had to knock on the door instead.

The door opened in the next second, and Professor McGonagall walked inside, relieved to see what was going on in the living room, at least the three people in the living room were neatly dressed.

Well? Three people?

Professor McGonagall looked at the extra professor in the living room with some surprise.

"Excuse me, Professor McGonagall?" Zhang Xu was also confused.

"I've heard that some students have left the common room during bedtime, so I've come and have a look." Professor McGonagall said in her businesslike tone.

Astoria writhed on the sofa with some uneasiness, her actions tonight were indeed against the school rules, and the most important thing was that she was caught red-handed by the principal.

Zhang Xu is not very easy to excuse Astoria at this time, although she really has nothing to do when she comes over tonight, just to thank herself. And at night, he called the girl to his dormitory, and if this news spread, he would have to kneel the durian into a watermelon.

"I called Miss Greengrass." Seeing the current situation, the veteran Slughorn immediately excused the students of his academy.

Slughorn pointed to the pile of papers on Zhang Xu's coffee table and said to Professor McGonagall, "I came up with some inspiration after studying these papers, so I called Miss Greengrass in and asked some questions. ”

"You know, sometimes if you don't catch the inspiration in time, it's easy to let them run away."

Since Slughorn said so, Professor McGonagall couldn't help but give the other party a face. She had not been the principal for long, and her prestige had not yet reached the point where she could ignore other colleagues.

After Astoria was driven back by Professor McGonagall, Zhang Xu secretly breathed a sigh of relief. If it hadn't happened to happen to Slughorn to look for him just now, this night would have been difficult. Under this melon field and plum, you have to use a truth agent to prove your innocence. It's just that when Slughorn first came in, the scene wasn't much better.

"What's the matter with you two?" After Professor McGonagall left Zhang Xu's dormitory, she found that Zhang Xu and Slughorn had also walked out.

Slughorn took out a pocket watch and looked at it, then said, "Zhang is refining the elixir with me, and there are still twenty-three minutes and thirty-three seconds before the next operation, so I'll remind him." ”

Professor McGonagall frowned, she knew that there were several steps in the refining of the Elixir that would take a long time, and that the time for the next step to start must be strictly adhered to, otherwise the Potions Professor's office would have to be renovated.

So when Zhang Xu came to the crucible, he looked nervously at the crucible placed on the stove, the emerald green liquid in it was constantly tumbling, and the steam coming out of the pot was constantly rising.

"It's almost time." Slughorn said to Zhang Xu with a pocket watch.

Zhang Xu nodded, and then checked the raw materials to be used next.

Now it was the final step in refining the Elixir, and he only needed to add the Golden Lotus to the cauldron, and the crystal bottle used to hold the Elixir was ready.

"Ten, nine...... Three, two, one! ”

As Slughorn's countdown ended as he stood by the door of his office, the potion in the cauldron suddenly turned bright yellow.

Zhang Xu seized the time of a few seconds before the explosion of the potion, and threw the golden lotus into the crucible without hesitation.

Then Zhang Xu's wand tapped on the potion.

Some steps in potion refining require magic to be involved, even if it is a mechanized automatic drug, which requires a wizard to cast spells on the potion at a specific time. If it was a Muggle to operate, it would inevitably fail in the end.

After Zhang Xu cast the spell on the potion, the color of the potion inside the crucible immediately changed from bright yellow to gold. At the same time, the potion that was originally just boiling suddenly became "cheerful". At first it was just a little bit, and then more and more droplets jumped up like fish jumping out of the water.

Half an hour later, Slughorn, who had just walked out of the office after the countdown was completed, cautiously returned to the office after seeing that the explosion that failed to refine the elixir did not happen.

"It's done!" Zhang Xu said to Slughorn.

Zhang Xu breathed a sigh of relief, and the big stone in his heart was finally put down.

At this point, as long as it doesn't explode, it's a success.

After filling a large pot of elixir with a few crystal bottles, Zhang Xu said goodbye to Slughorn and returned to the dormitory with a yawn.

The ideal amount of a single dose of the elixir is one drop each time, but according to the previous small bottle packaging, it is not a simple matter to take it accurately.

So Zhang Xu thought of packaging the elixir like cod liver oil soft capsules from the beginning, and when he needed it, he only needed to take one and throw it in his mouth to bite it and swallow it.

It's just that the amount of this Fuling softgel is too large, and the production process is a bit tedious and boring, so he decided to find a few free laborers to help him.