This is what Ravenclaw looks like.

"...In other words, the closer you are to the soul, the more cautious you have to be when casting spells, and the brain is the carrier of the soul..."

Andrew read through the information and couldn't help but ask questions.

"I've never seen this described on any of the other Transfiguration-related spells, Professor."

The brain is the carrier of the soul?

It sounds reasonable, but the word soul is rarely mentioned even in books in restricted areas.

"Of course not. When it comes to things like the soul, the research process is the slowest because it is too dangerous." Professor McGonagall said in a serious tone at this moment. "If you are not careful, you will turn a person into a complete idiot. Even ghosts can do it." No."

"But," Andrew was still a little confused, "but the reason why black magic damage is difficult to recover is because the soul has been damaged. This..."

"Not reasonable enough, right?"

"That's it, Professor."

"There is really no reasonable explanation, but the brain is undoubtedly the area that causes the most damage to the soul, so until now, wizards have very few deformation spells on hair and eyes."

Co-author: Is this the reason why baldness and myopia cannot be cured in the magical world?

It makes sense, because for fear of causing permanent damage similar to black magic, they dare not develop nearby spells, resulting in the worst treatment for these two parts.

Even Professor McGonagall wears glasses - this even affects the professor's Animagus transformation, because the students in the front row of Transfiguration basically feel that the cat transformed by the professor has square glasses-like patterns.

"I think I kind of get it."

"Remember, even if you become proficient in magic practice in the future, do not try to deform nearby areas, especially the eyes. You can move your hair a little. After all, it is easy to do, but there is a risk of blindness if your eyes are not careful - - Even the most advanced magic eye is still not a good match for wizards. "

"Yeah, I'll remember that."

Andrew nodded heavily, indicating that he would remember it.

"Well, let's move on to the next paragraph. Today's content is not over yet."

Different from the past free-range understanding training - the content of human body transformation basically means that after he reads a few paragraphs, he will ask what he doesn't understand, and then the professor will answer it completely.

This attitude alone was enough to make Andrew cautious, so even though he had basically mastered the basic knowledge in the past few days, he still did not start practicing spell casting.

But the professor was very satisfied with the progress, and repeatedly told him not to be anxious, but to do it bit by bit, and to understand all the content before casting.

And amid such trials, he finally got the approval.

"Bring the sarcoma powder container tomorrow and start your Boggart training."

On the tenth day of study, Andrew read through everything and received such approval from his professor.

"Yes, Professor!"

——

The next morning, when Andrew came to Professor McGonagall's office, the professor's office had been expanded to about the width of a classroom, and on the newly expanded floor, a solid box was tied up there.

"Don't look over there in a hurry, Taylor, let's practice transfiguration first."

The professor even prepared an empty desk for him alone.

"Here, be careful. Although that thing is safe, it is still a bit aggressive in order to increase the user's concentration."

The professor looked at the small snuff bottle and said, "It's such a convenient thing, but it's a pity that the cost is too expensive and the effect is not very good."

"Mainly it's a little ugly."

Andrew honestly expressed his evaluation, while the originally serious professor was a little amused.

"You can't buy this kind of ugliness with Galleons. Please extend your left hand."

While agreeing, Andrew stretched out his left hand - and then got a hard bite from the damn box.

"hiss…"

He sucked in the cold air, and then watched his hand begin to deform crazily - this was the effect of the sarcoma powder.

Different from the last time he was bitten, after understanding the basics of human body transformation, he began to feel the not-too-severe deformation of the sarcoma powder on his left hand.

This reversible deformation acting on himself allowed him to clearly perceive the chaos and reshaping of magic power - which is exactly the power pursued by human body transformation.

"It looks like a glove, but it's just not as good looking as ever."

Andrew held up his left hand and made this comment.

He stretched out his wand and tapped it on his left hand - the ugly hard shell quickly faded away, as if nothing had happened.

"Recovering well, Taylor."

The professor nodded, "It's really a good tool for getting started, isn't it?"

"Without a doubt, Professor."

Andrew stretched out his left hand again - it bit it again, and then the left hand began to deform again.

But unlike last time, the speed of the hard-shell assembly this time has slowed down visibly to the naked eye.

Andrew felt his control over the magic power and the power of chaos - after about a minute, he removed the protection.

This time only half of the hand was deformed, and the hard shell didn't even extend to the thumb.

"Interesting, but still wrong..."

Andrew didn't rush to take action. He glanced at his left hand, and then cast a spell on only one finger, slowly resolving the deformation.

Then there was a long period of thinking and stagnation.

‘It’s probably such a degree of confusion. In other words, the most basic malicious transformation is related to this. It actually relies on the power of spells to disrupt magic control, and even uses the victim’s own magic to complete complex human transformations? ’

‘Interesting, interesting. ’

He simulated it one last time in his mind, then stretched out his hand and let the snuff bottle give him a hard shot.

"hiss…"

The pain made him forget to resist for a moment, and his hand began to deform rapidly, but as he shook his arm, the hard shells began to be shaken off like water droplets on his hands, and finally disappeared.

"It hurts enough..."

Andrew looked at the snuff box with an evil look - this thing bites too hard.

"The progress is beyond expectations," the professor said with joy. "Getting started is faster than I thought. The wealth of the Black family is indeed unmatched anywhere else."

"It's indeed valuable. Galleons can't even buy such a clever thing." Andrew waved his hands, "It's just, hiss...it hurts too much."

"Pain is a necessary warning, so that people who are learning don't forget how dangerous this is. This is a benefit."

The professor didn't take it seriously, "Do it again, make sure you can resist this chaos the first time you are attacked, Taylor."

"The dangers of body transfiguration must be remembered."

"Yes, Professor."

Andrew responded seriously, but this time he switched to his right hand - if you send the left hand a few times, don't expect to eat with your left hand today...