Polyjuice Potion, a potion that transforms a person into a specific person, is a terrifying potion.

If the polyjuice decoction falls into the hands of criminals, it will be a disaster. The role of eyewitnesses, surveillance footage, etc., will be minimized. High-tech security measures such as fingerprint locks and iris locks will no longer be secure.

If the compound decoction falls into the hands of the old driver, it will soar out of the taillights like never before.

For example, if an old driver puts the hair of his goddess or the like in a compound decoction and then gives it to the special service personnel, then the old driver will have an hour to gallop on his favorite track. Or drink it yourself and let other veteran drivers gallop on their own tracks.

In addition, the invention of compound decoction will also produce a series of academic problems.

For example, if a person's hair that was retained when the body was intact and a certain part of the person's body is missing and then put it in a compound decoction and drink it, will she not return to the way she was when her body was intact?

For example, if a man keeps drinking a decoction with a woman's hair to keep the woman's body alive, will the person get pregnant? In turn, if a woman drinks a compound decoction and becomes a man, can she make a woman pregnant. And the old Wang next door drank a compound decoction with the hair of the neighbor's husband, so who does the child born by the neighbor's wife look like?

In addition, the compound decoction can also open a door for you to be called a foreign mother.

For example, the cat girl in front of Zhang Xu.

"Hermione, what's wrong with you?" Zhang Xu asked pretending to be surprised.

"It's cat hair in the polyjuice potion," Hermione said, covering her face with her paws.

Now Hermione had sparse black hair, yellow eyes, two long, pointed ears protruding from her hair, a meow tail hanging down on the bed, and hands with a pair of meow claws like the Tamamo cat from Fate/Grand Order.

"Can you reach out and let me check it out for you?" Zhang Xu said with a serious face.

Out of trust in Zhang Xu, Hermione handed the paw to Zhang Xu without hesitation.

Zhang Xu held Hermione's paw with both hands, and pinched the back of the paw first, it was fluffy and soft, and the bones inside were exactly the same as those of a cat.

Then Zhang Xu turned Hermione's paw over again, pinched the meat pad in the middle of the claw, and then scratched it again, and the elastic meat pad made Zhang Xu's whole body heal.

Zhang Xu pinched it a few times, and felt that there seemed to be something wrong with Hermione, and he looked up and found that Hermione's whole body seemed to be trembling, as if she had been tickled.

At this time, Hermione noticed that something was wrong from the expression on Zhang Xu's face, Zhang Xu's expression she had seen when she watched Zhang Xu tease Lady Loris.

When Zhang Xu reached out to Hermione's ear, Hermione went crazy.

"Zhang, I'm glad you came to visit me as soon as you got back to Hogwarts, but could you please stop?" Hermione sat on the hospital bed and stared at Zhang Xu with a pair of meow eyes and said.

Zhang Xu had no choice but to withdraw the hand that tried to pinch Hermione's meow ear. It seems that grabbing the meow's tail and verifying whether it's like some works say, the idea of what the tail of the mother is can't be realized.

Zhang Xu took out a small dried fish and shook it in front of Hermione, and then was slapped away by Hermione's paw.

Hermione looked at the cat teasing stick and catnip that Zhang Xu was holding in her other hand, and almost wanted to pounce on it and scratch Zhang Xu's face.

Hermione's heart is broken at this moment, I trust you so much, you just want to play with my body.

"How are you doing with Malfoy's investigation?" Seeing that Hermione's expression was wrong, Zhang Xu immediately put away the things in his hand and changed the topic.

"It's been confirmed that it's not him. It took so much effort, and in the end it was in vain. Hermione said gloomily.

"Then the most suspicious is Professor Lockhart." Zhang Xu said.

As Lockhart's brain-dead fan, Hermione had nothing to say.

After the two chatted a few more words, Zhang Xu was ready to say goodbye and leave.

Before leaving, Zhang Xu made a quick move and brushed Hermione's meow tail.

"Meow!" Hermione cried out as if she was terrified.

Then Zhang Xu saw Hermione slumped on the hospital bed, looking at Zhang Xu with a look of resentment.

Zhang Xu escaped from the school infirmary before Madam Pomfrey arrived.

In the hallway, Zhang Xu heard several students whispering about Hermione, who had a cat's hair, with a panicked face.

This is a magic school in the UK, if it is a magic school in Japan, maybe the students will give Hermione the meow up prprprpr, Zhang Xu thought.

"Why don't you improve the compound decoction and develop a special version of the compound decoction? This can be done, but you can't ask Snape to study it together, if he knows what I'm going to do, he'll definitely kill him. However, there are other reasons to study it, and local deformation is a good excuse. Once upon a time, there was a witty, brave student at Hogwarts, named Harry Potter. He has the eyes of an eagle, the ears of a wolf, the speed of a leopard, the strength of a bear, which makes him extraordinary and superhuman, and he wags a relentless struggle against evil in order to maintain peace and tranquility'. It's not bad to study it yourself, and in the future, Furong Wang, Gabriel Meow or something......" Zhang Xu's brain was opened.

"Yo, Ginny, hello." Zhang Xu turned the corner of the corridor and saw an acquaintance.

"Ah...... Hello Zhang. Ginny seemed taken aback.

"Am I that scary? What are you doing? Zhang Xu said.

"I didn't ...... Didn't do anything. Ginny replied nervously.

As soon as Ginny had finished answering, she saw a staircase beside the hallway, and hurried up the stairs to leave.

Zhang Xu looked at Ginny who was running away in a hurry on the stairs, thought for a while, turned on the stealth, and followed.

I saw that Ginny kept muttering something, constantly opening the empty classroom, and she looked into the classroom a few times before leaving.

Ginny scurried around the castle like a headless fly, opening and closing doors without stopping.

Zhang Xu followed her all the way.

Ginny is opening a classroom that has been unused for years, and the classroom is full of dust.

Zhang Xu saw Ginny throw something into the classroom outside the classroom, and then left in a panic.

At this moment, Zhang Xu looked confused, could it be that Ginny wanted to go to Myrtle's bathroom just now to throw Tom Riddle's diary, but as soon as he was interrupted, he changed places to throw it.

Just as Zhang Xu was about to enter the classroom and take out the diary, a figure flashed out of the corridor and walked into the classroom.

Not long after, Zhang Xu saw Lockhart walk out of the classroom with the diary.

At this moment, Zhang Xu is confused and confused, and the development of this plot is interesting.