Dumbledore? He knows nothing about MC alchemy.

Of course, their morning trip to Diagon Alley wasn't just about pets and brooms. For example, Kaisen's next destination was Flourish and Blotts.

"Um... sir, have I seen you somewhere before?"

A bookstore employee who was arranging books on the shelves suddenly stiffened for some reason.

"No, no, no, of course not... Anyway, I haven't seen you."

"Really?"

"real."

Kaisen nodded, and went to the front desk to pay with a bag of books about the unofficial history of the wizarding world and some street literature about Hogwarts in his arms. The employee finally breathed a sigh of relief after the two left the bookstore.

At the same time, a pitch-black anvil appeared on his head.

clang!

"Heh, you offended the professor and you still want to get away with it? That's not that easy!"

At noon, the two flew back to Hogwarts. Neville excitedly left the office carrying the big-faced cat, while Kaisen appeared directly at the door of Professor McGonagall's office.

"Professor McGonagall, do you know anything about Neville's parents?"

Professor McGonagall inserted the quill into the pen cap. "Why do you think of asking these questions? Navito, are you here to help ask them?"

"Not really. I just happened to know that Neville's parents are still alive. But I heard that they are in St. Mungo's Hospital, so I came to ask."

Kaisen asked.

"Mr. and Mrs. Longbottom were also a pitiful couple. On the eve of Voldemort's death, all the Death Eaters began their final frenzy, and a large group of Death Eaters broke into the Longbottom couple's house."

"They cruelly tortured Mr. and Mrs. Longbottom with the Cruciatus Curse. Since then, Mr. and Mrs. Longbottom have become mentally ill and have been staying in St. Mungo's Hospital ever since."

"So... can I have a visitor? I mean, does St. Mungo's Hospital accept visitors?"

Professor McGonagall pursed her lips and said, "Kasen, you are just a professor. Those are not your responsibilities. There is no need for you to take on so many burdens."

"How old are you this year? Can you be twenty-six? Have you celebrated your twenty-sixth birthday? You are just a child now, there is no need at all."

Kaisen shook his head. "No one ever celebrated my birthday since I was a child. I've long forgotten the exact date."

"But no matter what, I am still a professor now. I will help not only Neville, but any little wizard who has any problems that cannot be solved. Maybe I can't help, but there is a difference between having no ability and having no ideas."

"Eh. I remember it should be the Magical Injuries Department of St. Mungo's Hospital. Just go to the nurse's desk and ask for Mr. and Mrs. Longbottom." Professor McGonagall took off her glasses and pinched her nose bridge tiredly.

Until the sound of the end teleportation ended, Professor McGonagall looked at the office in front of her which was empty except for herself, and smiled helplessly.

Soon she took out her wand, and a cute silver kitten jumped out of it.

"Ask Dumbledore when Caesar's birthday is. He'll probably be able to find out."

The silver-white kitten jumped up nimbly, passed through the office wall and ran straight towards the principal's office.

the other side...

"Hello sir, may I ask... Professor Kaysen?"

A nurse at St. Mungo's Nurses' Station who was writing something raised her head wearily, glanced at the person who came, and then the fatigue on her face disappeared in the blink of an eye, replaced by an expression of surprise.

"Sarah? Congratulations, you really became a doctor at St. Mungo's!" Kaisen said with some surprise after seeing the nurse in front of him.

"Um... my medical license hasn't come out yet, but I'm doing fine now, a glorious and great nurse!" Sarah said half embarrassedly and half proudly.

"All in all, it's good and has a bright future."

Sarah nodded. "By the way, Professor, who are you looking for here? Let me check for you."

"Mr. and Mrs. Longbottom, Neville Longbottom's parents."

"Those two are in Ward 49. I'll go with you."

"No, no, no, I should be able to find it myself. Just continue to hold your post."

"Well, take this visitor card. Professor, please come in advance next time you come... Um, I hope you don't need to come here, except to visit patients."

"Well, thank you for your kind words!"

Soon, Kaisen found Ward 49 according to the various signs of St. Mungo's. He could clearly hear various sounds inside. They did not sound like ordinary madness, but more like unconscious whispers in a trance.

He knocked on the door, but there was no response from inside.

"Hold still, sir. Put your hands up."

Kaisen was knocking on the door when he suddenly felt a wand pressing against his back.

"Don't be impulsive, sir. I have a visiting card." Kaisen quickly showed the visiting card in his hand, then looked back and saw a man in a hospital gown pointing at him with an ordinary small wooden stick in his hand.

"Emm..." Kaisen was a little embarrassed, and then he saw a figure in a white coat running towards him from the far end of the corridor.

"I'm sorry, sir. This is the patient's condition. Please don't take it personally."

"Um, it's okay, you are..." Kaisen looked up and down at the figure in the white coat in front of him. At least he was dressed neatly and there was a wand in his sleeve. He should not be another psychiatric patient.

"You can call me Malphite, the psychiatrist at St. Mungo's, responsible for treating this man... and of course the one inside." Malphite said as he waved his wand, and the furry and soft sleeping bag wrapped the man tightly.

Slowly pushed it into the ward.

"Oh...is this Mr. Longbottom?"

Murphy nodded. "Yes, is he the one you are visiting?"

"Well, would you mind telling me...why did Mr. Longbottom become like this?" Kaisen said as he helped Malphite carry Mr. Longbottom back to the ward.

There are two beds in the ward and a simple bathroom. It is not big, but very clean. You can tell that it has been cleaned almost every step of the way.

After the two men carried Mr. Longbottom back to the bed, Kaisen had time to look at the woman sitting on the other bed, staring blankly at a piece of candy wrapper in her hand.

This woman would be very beautiful if she wasn't so thin that she looked unrecognizable.

"This is Mrs. Longbottom." Malphite explained as he stood next to Kaisen.

"Well, I can see that... By the way, you haven't answered me yet."

"This matter is quite complicated. Are you sure you want to hear it?"

"Yes, please trust my patience, sir."

Chapter 102 Neville will have an unforgettable Christmas this year

"Well, it happens that it's not often that someone asks me such professional questions." Moffitt pulled over two visiting chairs from the corner of the ward.

"Strictly speaking, the Longbottoms' behavior isn't a disease. It's a form of self-defense. You know what they've been through, right?"

"The Cruciatus Curse."

Murphy nodded. "Moreover, it was the Cruciatus Curse used by the vicious Death Eaters. The pain caused by this Cruciatus Curse is beyond the control of the body's own hormones."

After he said that, he glanced at Kaisen's weird expression.

"Don't worry about the details. After graduating from Hogwarts, I went to the Muggle University of Manchester to study medicine."

"Oh! Alumni, alumni!"

"Don't make such a fuss. All the wizards in England are alumni...wait..."

"Yes, I'm talking about the Manchester alumni."

"Oh! Nice to meet you. I didn't expect that you're studying..."

"civil Engineering."

The two of them exchanged some warm and pleasantries before getting back to business.

"It's almost like a painful memory. Once you recall the pain, your brain will feel the pain as if it were your own. You know, like... you know the aftereffects of war?"

"Generally speaking, victims will go in two directions. The more extreme ones may pull out their wands and start killing people, while the quieter ones are like the Longbottoms."

"Do they have any...um, physical problems?"

Malphite shook his head. "The Cruciatus Curse doesn't harm the body, nor, strictly speaking, the soul. It only causes pain to the soul. That's why I don't consider it a disease. And that's why I don't know how to treat it."

"In other words, the Longbottoms are like this just because of a horrific memory? Can this memory be deleted?" Kaisen asked.

Malphite took out his wand and drew a line out of thin air.

"Let me explain. Ordinary memories are physiological memories, which are only recorded in the brain. The pain caused by the Cruciatus Curse, on the other hand, is a memory of the soul."

"Think of this line as the patient's memory line. If it is physiological, then this memory will only leave a trace at one point on the memory line."

"As for the spiritual aspect, a thick haze has enveloped the entire memory line. Honestly, a memory problem of this magnitude wouldn't be solved with a normal Obliviation. Honestly, I doubt Dumbledore's Obliviation was even that high."

Kaisen looked up at the ceiling... He thought of someone... Someone he had always looked down upon, but at this moment...

"If a person could sense that he was under a Confounding Curse and, through Obliviate, forget the effects of the Confounding Curse on him, would he be able to complete this difficult task?"

Malphite shook his head. "Impossible. There is absolutely no way anyone in this world could use a Memory Charm of that degree. Besides, it's still unknown whether the Memory Charm can be used in this way."

"Oh, not quite. You know, Hogwarts is a place with a lot of highs and lows. It's no exaggeration to say that it's a place with hidden dragons and crouching tigers."

"What do you mean?"

Kaisen shrugged, exchanged a few pleasantries with Malphite, and then disappeared.

................

On the other side, Hogwarts...

Defense Against the Dark Arts Office.

dong dong dong.

"I'm coming!"

Kaisen stood outside the door and heard the sound coming from far away. Soon the door opened and Lockhart's bright smile was reflected on Kaisen's monocle.

"Hello." He said with a smile.

Lockhart also smiled politely... well, a smile that was uglier than crying.

"Professor Kaisen, I don't think I've offended you recently. What did I do wrong?"

"You did nothing wrong. I'm here just to ask, did you really use the Obliviate to free you from the influence of the Confusion Curse?" Kaisen leaned against the door frame to prevent Lockhart from closing the door.

"The Oblivion Spell... Professor Kaisen, I tell you frankly, many of the stories in my book are false, but the Oblivion Spell is truly true. It's the only spell I specialize in."

"Just tell me if you can do it?"