Felix returned to the Ancient Rune Office with an expressionless face, and sat on the sofa with heavy steps. Valen yawned and handed him a bottle of juice he had prepared.

As a result, someone bit the straw and blew air into the juice, making bubbles one by one, which made Valen so angry that he hit him twice.

Felix smiled and rubbed its soft fur, and watched the cartoon of Tom and Jerry with it. After watching for a while, his thoughts became lively.

He actually felt that the bulldog Spike and Dumbledore had similarities. This was definitely a psychological effect. If so, who was Grindelwald? It couldn't be the unlucky Tom cat.

Valen looked at Felix strangely. The big devil was laughing so happily.

Did the big devil put himself into the blue cat in the cartoon? This is not bad. It often puts himself into the perspective of the mouse, because Jerry can always successfully defeat the huge opponent. Unfortunately, this episode tells the story of the blue cat teasing the big dog.

Back in the bedroom, Felix lay on the bed, and the scene that happened in the principal's office kept circling in his mind.

Dumbledore solemnly introduced to him the binding spell on Grindelwald. Before Voldemort appeared, Grindelwald was considered the most dangerous dark wizard in history. Even now, Grindelwald is still more threatening than Voldemort in the minds of some people (especially the magic regimes outside the United Kingdom).

Facing such an enemy, no matter how cautious you are, it is not too much.

After the legendary duel, the delegation of the American Magic Congress proposed to execute Grindelwald immediately to avoid future troubles, because no existing prison could trap him. This proposal was agreed by more than half of the representatives of various countries at the time, but Dumbledore opposed it against all odds.

His reason was: the reason why this duel existed was because they promised each other before the duel that the loser would automatically be imprisoned and completely (or passively) give up his own ideas.

What's more, there are more realistic reasons.

The war is not over, and the saints scattered around the world are still powerful. If they hear the news that their leader has been executed, they will definitely not hesitate to start riots everywhere.

The magic world finally saw the hope of peace, and it should adopt a conciliatory approach instead of actively intensifying the conflict. Therefore, Grindelwald must not die, and the International Confederation of Wizards must actively spread the news that he is alive, so that the saints cannot elect a new leader.

At that time, Dumbledore's reputation was at its peak, and the situation was indeed turbulent, so this method was later adopted.

But new problems arose.

At that time, officials from the Ministry of Magic of various countries clearly realized that simply confiscating wands or using magic barriers could not trap Grindelwald at all. They had to design new and powerful imprisonment measures to prevent Grindelwald from breaking his promise and escaping from prison again.

An African wizard gave a solution.

The Uagadou School of Magic, located in Africa, has always retained the ancient gesture casting, so losing the wand does not make the dark wizards there lose their ability to resist. They naturally have unique solutions, such as binding spells specifically for finger joints.

But Grindelwald's power far exceeds that of ordinary dark wizards, and the treatment he received is naturally extraordinary. The African wizard mentioned an extremely powerful imprisonment magic, and its reputation was so terrible among the local wizard community that it was like a horror legend. Felix

thought about Dumbledore's evaluation of it:

"Rather than saying it is imprisonment magic, it is better to say that it is some unknown vicious curse. Once it is hit, it will be like a thorn in the flesh and blood of the wizard, constantly absorbing the magic power of the recipient, making it impossible to cast spells, and in fact turning it into a squib."

"I improved it - exempting the meaningless, punitive pain, and adding a key and a window. If Grindelwald tries to break the spell, I will know immediately."

"And because I used my own magic power, I can also roughly sense his position and status. Of course, the farther the distance, the vaguer this feeling is..."

"So the imprisonment in Nurmengard Castle is just a cover, and you are the jailer guarding the prison." Felix suddenly realized, and he pointed out incisively.

Dumbledore did not answer, but lowered his eyes and looked at his hands. After a while, he continued to mutter:

"In order to study the secret of the Resurrection Stone, my soul and magic have undergone unpredictable changes. I am no longer suitable to be a jailer - as you said - and I must find someone new to replace me."

"You are too obsessed with the Resurrection Stone, Albus. Even for Harry -"

"And Ariana." Dumbledore interrupted, "It can even be said that the whole plan was entirely for her at the beginning. It has gradually taken shape in my mind since I got the Resurrection Stone. Every day since then, I have been suppressing this idea. Because Voldemort is still there, I have to desperately convince myself not to wear the ring. I endured it for several years, and finally Voldemort was completely overthrown, and I dared to let go."

Felix stared at him. This thought was too deep. Dumbledore smiled at him mischievously.

"So you thought of me?" Felix raised his voice slightly.

Dumbledore's eyelids trembled a few times, and he said in a deep voice: "I know you hate being bound, Felix. I can assure you that after the spell is transferred, the appearance will not cause any troubles, on the contrary, there will be only benefits. From now on, Gellert will never be a problem for you."

There was a short silence. Felix wavered between his heartbeat and resistance, and it was difficult to make a decision for a while.

If Dumbledore was telling the truth - he believed that Dumbledore would not deceive him, and this was not only out of trust in the other party - becoming the new jailer meant that Grindelwald's fate would be completely in his own hands. Although there was no benefit, it could remove a huge hidden danger: at least Felix didn't have to worry about being surrounded by a hundred thousand saints when he woke up.

The reason why he couldn't forget it was that the threat was real and effective. After a quarrel, the old man was forced into a corner and threatened him with this matter secretly, just as bad as the woman who used the alias Noel.

Felix was confident that he would not be defeated or captured alive - his combat system was very restrained against large-scale human wave tactics, but everything had its limits. Just because he could escape from the wizard army, it did not mean that he could withstand the continuous magic offensive of thousands of people at the same time.

Moreover, unknowingly, he also regarded Hogwarts as a part of himself.

He could run, but Hogwarts could not. Even Dumbledore could not do that.

In the dark, Felix's blue eyes stared at the ceiling. Valen smacked his lips in the cradle and talked unconsciously in his sleep. Fox? Catching fish? It seems very interesting...

some thoughts came to his mind again.

"Why not accept the conditions offered by Grindelwald? From his speech at the dinner table this morning, he seemed to have regrets, or at least took the initiative to send out signals of compromise. I don't believe you can't see it."

"I hope this is true. I hope he can feel how horrible and shameful what he did. Maybe he wants to make up for his past mistakes... But the entanglement between us is too deep, Felix. I can't judge the truth, I can't bear the cost of misjudgment, and the entire wizarding world can't bear this cost..."

These words almost sentenced Grindelwald's future comeback.

"...Okay, I roughly understand your idea. Why did you choose me to transfer the spell?"

"Ordinary wizards can't bear this power. Just like their Animagus can't integrate magic items into themselves-I don't think you have this trouble?"

"Tsk, you guessed it." Felix curled his lips.

"You can think about it for a while," Dumbledore said sincerely at last, "I hope you can agree, not an order, but a plea... If the people of the International Confederation of Wizards know about this, it will be difficult for Gellert to continue to live."

Valley

...

After entering May, the sunny weather became more and more days than before. When Felix stood at the window and looked into the distance, he found that there were sporadic leisurely students by the Black Lake. The lake surface was sparkling, and the giant squid swam through the warm shallow water to bask in the sun.

Felix wrote a letter to Rita Skeeter.

The woman complained bitterly in her reply, but he saw through the tricks in her words at a glance. Skeeter was immersed in it. In her own words, it was "standing at the turning point of history, and a slight stroke of the pen could influence the current situation." It

was very tempting. But Felix still preferred the freshness brought by magic, and stayed in one place to think about new and interesting magic topics. For example, landing on the moon, or -

when Hermione walked into the office, she was surprised to find that Professor Hepp was knitting a piece of fabric. There was an open book on the small table in front of him. She picked it up and saw that the title was "Sweater Knitting Patterns".

Hermione was so surprised that she couldn't close her mouth.

"I want to try something new." Felix said with a smile: "I asked around, and finally Professor McGonagall told me that our headmaster has a high level of appreciation for Muggle sweater knitting patterns. I just mentioned it casually, and he recommended me to look at this, the content is very complete."

He waved at the cabinet, and two fat tea cups with smiling faces on them floated over. He pointed again, and the cups were filled with tea.

"Let us thank this unique Christmas gift. Valen liked it at first sight. But it went out for a walk, saying that it wanted to catch some fish for Fox..."

While he was doing these things, several crochet needles were still busy in an orderly manner.

Hermione thanked her and sat down on the other side. At this time, she found something unusual: the wool used for knitting was not what she thought. The end of the thread extending from the crochet needle was not a ball of wool, but a book of runes.

"Is this...ancient runes?" She stared at the wool for a while, and then she realized that they were actually composed of pocket-sized magic characters. She couldn't help but be amazed.

"Well, well, what can you think of?" Felix said expectantly.

Hermione swallowed her saliva and thought seriously. Before she could react, a word had already come out of her mouth. In her mind, this idea was too reasonable and could perfectly explain the strange behavior of the professor who was always lazy.

"Invisibility cloak?"

And it was definitely not a thing cast with a disillusionment spell or woven with the fur of an invisible beast. What emerged from the depths of her memory was a holy object classified as the Deathly Hallows. Since she knew that the Resurrection Stone really existed, her attitude towards the Deathly Hallows was not so stubborn.

Of course, her idea was the same as Felix's, that is, they were all made by highly skilled wizards.

Felix showed an appreciative smile on his face.

"Oh, professor! Have you cracked the method of making the invisibility cloak? When was this? I never heard Harry mention that you borrowed the invisibility cloak from him." Hermione said half excitedly and half confusedly.

"I haven't borrowed it. From what I know about the Deathly Hallows, no matter who really made them, it's obvious that he kept his knowledge very strictly and didn't want to let future generations study it. A powerful protective spell was cast on it... Therefore, I can only find another way."

Hermione held the teacup and threw questions one after another:

"Is it used for invisibility?"

"Obviously not."

"Oh..." Hermione muttered softly, leaning closer, her nose almost close to the half-woven magic rune fabric, "The magic runes on it are too small, I can't see them clearly..."

"Use your intuition, Miss Granger."

Hermione closed her eyes slightly, and after a long while, she seemed to have sensed nothing, and she couldn't help but open her eyes in frustration.

"I can't do it, I'm not good at this."

"Don't rush to make a decision. You are not good at it maybe just because you are too rational and actively close your own thinking..."

"Isn't it better to be more rational?" Hermione asked frustratedly.

"There's nothing wrong with rationality, and it doesn't conflict with learning magic, but it's easy to get into trouble if you only use rationality. In fact, I have encountered similar troubles..."

Hermione's eyes lit up.

"Professor, how did you solve this problem?"

Felix cleared his throat.

"Maybe it's because I wasn't as stubborn as you when I was a kid, uh, I mean I read so many books; or I have had an inexplicable fantasy about magic since I was a child, hoping that it would appear in my world... or maybe the experience I had a few years before entering school required me to hold on to magic tightly, in short, all this happened naturally, and rationality and sensibility in me reached a delicate balance - at least I hope so. I am very satisfied with it."

Hermione first showed a disappointed expression, because the professor seemed to have said nothing, and then she suddenly remembered something and couldn't help but put her hand over her mouth.

She asked carefully:

"Well, professor... what does it feel like to have a magic riot? I heard Neville mention it, but you seem to be different, one is because of love, and the other..."

"Oh, Miss Granger--"

Felix suddenly smiled, as if he was about to reveal a huge secret, with a little eagerness and excitement.

"I did have some not-so-wonderful experiences, but not all of them."

Hermione blinked, and it was difficult to understand the meaning of the words for a while.

"And, not all of them?"

"Yes, even I found it difficult to sort out those chaotic emotions... It was too complicated for me at the time. But, Miss Granger, logically speaking, the dangerous time travel you have experienced should have had some effect."