Chapter 16: The Disillusionment Charm

"Hermione, did you know? You are an extremely talented young witch. All the other professors have told me so, and I agree," Eisen said with a smile to Hermione. 

The reason he said this was to give her some encouragement and prevent her from being overly stressed if the other young wizards isolated her. Perhaps the young wizards were more likely to perceive Hermione's "arrogance," but in Eisen's view, it was just the "pride" of a young girl.

At Eisen's praise, Hermione's face immediately turned red, and she even turned her head away, not daring to look at him again.

"Alright, time for class. Professor Hooch is coming back," Eisen said, pointing to Professor Hooch approaching in the distance. With his other hand, he gently patted Hermione on the head.

"Goodbye, Professor Eisen!" Hermione squeaked out softly, then hurried off.

Watching the young witch turn and leave, the expression on Eisen's face gradually disappeared, revealing a pensive look.

"Indeed, the same spell attributes can be replicated," Eisen muttered to himself. However, it seemed that the attributes of the same magical artifact could not be replicated. For instance, his own wand was still on him, but after the miraculous attribute was restored, there was no indication of discovering a spell attribute.

In other words, no matter what attributes a magical artifact had, they could only be replicated once. However, to what extent the same attributes could continue to be integrated, Eisen currently had no way to verify.

"Never mind, we'll discuss it later!" Thinking too much was useless for now. Afterward, Eisen wandered into the library.

That's right, since he had this opportunity, Eisen had to study hard. To be honest, Hogwarts had many courses, but Eisen was not interested in some of the course content. For example, Eisen had only briefly familiarized himself with the history of magic.

As for Herbology and Potions, Eisen hadn't even studied them. However, he had studied Defense Against the Dark Arts a little since it involved using potions to counteract some dark magic effects.

There was no way around it; currently, Eisen devoted all his energy to spells and transfiguration. Therefore, although his current strength was already strong enough to be a qualified wizard, he was still lacking in many areas.

After arriving at the library on the second floor of Hogwarts castle, Eisen couldn't help but gasp in awe. There was no way around it; the library had thousands of bookshelves and hundreds of aisles. One aisle after another extended inward, making it difficult to determine exactly how many books there were.

It's worth noting that when Hogwarts was first founded, the four founders left behind many precious books. Combined with regular acquisitions and donations from graduates over the millennia to update the library, the collection had reached an astonishingly high level.

One could say that the library at Hogwarts had the most books in the wizarding world.

On Thursday, the library seemed exceptionally quiet. There was no way around it; the students were all in class, so only the librarian, Madam Pince, and a few upper-year students were present.

In fact, this was quite normal. Some students would come to borrow books to complete their assignments, especially upper-year students who might come more frequently to prepare for exams.

After greeting Madam Pince at the entrance desk, Eisen walked into the library's interior. The Restricted Section, where Harry and Hermione often wandered in the original story, contained many dangerous books on dark magic.

The most famous was "Secrets of the Darkest Art," from which the notorious Voldemort learned how to create a Horcrux while still a student. Now, that book had been taken back to Dumbledore's room. All books mentioning Horcruxes had been moved by him.

Additionally, Hermione had once borrowed "Moste Potente Potions" from the Restricted Section to brew Polyjuice Potion. However, these were clearly not Eisen's current goals.

So, after finding relevant books on the Disillusionment Charm and Apparition, Eisen sat at a nearby table and began reading.

As time passed, Eisen became increasingly immersed.

...

"Professor Eisen, it's closing time for the library!" A voice suddenly rang out in Eisen's ear, startling him awake.

"Very well, Madam Pince, is it alright if I borrow these two books?" Eisen had just realized that he had become so engrossed in the books that several hours had passed. It was already 8 p.m., the library's closing time.

"Of course, Professor Eisen, but please don't damage the books!" Clearly, as a professor, Eisen had the authority to borrow books. But Madam Pince dutifully reminded him anyway.

"Certainly, I'm also someone who treasures books greatly," Eisen replied. He wasn't just idling; of course, he wouldn't intentionally damage books.

After returning to the staff quarters, Eisen resumed studying the Disillusionment Charm and Apparition. After in-depth reading, Eisen fully understood the casting techniques and difficulties of both spells.

Leaving Disillusionment Charm aside for now, Eisen knew that when casting the Apparition, three principles must be followed: the Destination, Determination, and Deliberation.

The first step was to focus one's mind on the intended destination. The second was to muster determination and resolve, filling one's being with the intention to reach that destination. Then came the third step: casting the spell with deliberation.

However, as Eisen knew, Apparition was indeed very dangerous. During the casting process, splinching could occur, meaning part of the body would be left behind at the original location while part had apparated to the destination.

If no instructor was watching, this situation could be life-threatening. So even though Eisen felt he could now cast this spell, he didn't dare practice alone.

He planned to seek Professor Flitwick's guidance when he was available and practice under his supervision.

As for the Disillusionment Charm, Eisen felt he could attempt it now.

Taking out his trunk, Eisen drew his wand, intending to cast the Disillusionment Charm. However, before incanting, Eisen suddenly wondered if the trunk would explode if he failed.

Although Eisen had never encountered this problem when attempting other spells, the Disillusionment Charm involved space manipulation, so he had to be cautious.

After considering for a moment, Eisen pointed his wand at the trunk and transfigured it into a bird, allowing it to perch on his shoulder. Then, Eisen left his quarters, intending to visit the Room of Requirement on the eighth floor.

That's right; he planned to practice magic in the Room of Requirement, which could transform itself according to the user's needs.

After returning from the library around 8 p.m., Eisen conducted further research for over an hour in his quarters. It was nearly 10 p.m. now, but as a professor, Eisen could roam the castle corridors at night without issue.

Upon reaching the tapestry of Barnabas the Barmy on the eighth floor, Eisen knew he had arrived at his destination. After walking back and forth three times while concentrating on needing "a place to practice magic," a door appeared in the wall.

Inside, a spacious area appeared before Eisen, with several dummies standing in the corners, seemingly for practicing spells.

However, Eisen paid no attention to these, instead letting the bird on his shoulder fly down and transfiguring it back into a trunk. Then, he began practicing the Disillusionment Charm.

Bang!

The trunk exploded in front of Eisen, but he had reacted quickly enough to cast a Protego charm, shielding himself from harm.

"Reparo..." After a Repairing Charm, the trunk became whole again.

Bang!

The trunk continued exploding, then being repaired by Eisen, exploding again, then being repaired...

In the midst of continuous failed attempts, time slowly ticked away. When Eisen finally succeeded in casting the Disillusionment Charm, over an hour had passed.

After another ten minutes of uninterrupted practice, Eisen had mastered the spell. By then, the interior space of his trunk had been expanded to the size of a room.

In fact, the main reason Eisen mastered this spell so quickly was his perfect control over his internal magic power and its sheer strength.

Of course, Eisen is still far from being able to cast the Traceless Stretching Spell as he pleases. For example, the space inside Magizoologist Newt Scamander's magical suitcase is like a small world. This level of traceless stretching spell is Eisen's goal in the future.

(End of chapter)