Hogwarts Passer-By Professor

Hearing Dumbledore's remarks, Eisen nodded slightly, agreeing with him.

Afterwards, Eisen spoke slowly, "So, for example, if I want to hide my home address with the Loyalty Charm, then I can act as a secret keeper, right?"

"You're right, the Fidelity Curse has no restrictions in this respect!" Dumbledore frowned slightly, not knowing exactly what Eisen was going to ask.

"Well——, what happened a while ago!" Eisen pondered for a while and continued, "We all know the truth about the matter of Sirius Black and Pettigrew Peter, and it was caused by changing the identity of the secret keeper to Peter Pettigrew. of."

"What are you trying to say?" Dumbledore's tone became heavy unconsciously.

"Since there is no limit to the identity of the secret keeper, why didn't Harry's parents be their own secret keeper, and they had to choose outsiders?" Eisen directly sent out a soul torture, "Well, I know that Sirius is Harry's godfather, Harry's parents didn't Treat them as outsiders. But it's more appropriate to be your own secret keeper, isn't it?"

"If it's what you said, this is indeed the perfect solution. James and Lily will never be found by Voldemort." Dumbledore was silent for a while, "However, the wizarding world was facing the darkest moment at that time, and James Tom and Lily can hide, but they can't be blind—"

"You mean, they need a secret agent to act as a bridge to the outside world, and they need to pay attention to the outside world?" Eisen said, feeling a little pain in the head.

How could such an obvious loophole be resolved so easily? Didn't the author of the original book insist on writing it this way? ? ?

"I don't know what they decided at the time, but I think they must have thought about it." Dumbledore spoke with a heavy tone.

"Okay, that makes sense, but when Harry's parents made Sirius Black or Pettigrew Peter the secret keeper, why didn't they let them make an unbreakable oath?" Eisen then sent out the second question of the soul .

"The Unbreakable Vow?" Dumbledore was taken aback, looking at Eisen like he was looking at a fool.

"What's the problem? The Fidelity Charm and the Unbreakable Vow are a perfect combination!" Eisen shrugged.

"They are very good friends, and being the Secret Secretaries of the Fidelity Curse means that they trust their friends. But making an unbreakable oath is an expression of extreme distrust. How could they do that?" Dumbledore said Slightly sighed.

Now, Eisen's soul question has been completely resolved.

"Well, I have no questions about the Fidelity Curse." Eisen twisted his neck, and the topic turned to what he really wanted to ask, "However, I still have a question that I want to ask—"

After Eisen finished speaking, he unfolded the folded "Daily Prophet" in front of Dumbledore.

Dumbledore picked up the newspaper and read it, then flipped to the other side after a while, then looked at Eisen suspiciously, not understanding what he meant.

"The 422nd Quidditch World Cup final is about to begin!" Eisen pointed at the newspaper, "If I'm not mistaken, the Quidditch World Cup is held every four years?"

"Is there a problem?" Dumbledore put the newspaper down and nodded at Eisen.

"So, Professor Dumbledore, when did the first Quidditch World Cup start?" Eisen asked calmly.

"Eisen, are you trying to test me, an old man?" Dumbledore said with a wry smile, "Although I am very old, I have no lake mud yet. The first Quidditch World Cup was held in 1473."

"Then, here comes the problem." Eisen's face turned serious, "Since the first Quidditch World Cup was held in 1473, and the Quidditch World Cup is held every four years, then this year's Quidditch World Cup should not be Is it the 130th session? Why is it the 422nd session, there is a gap of more than a thousand years!"

Listening to Eisen's voice, Dumbledore's originally indifferent expression gradually became stiff. When Eisen finished speaking, Dumbledore was already frowning with a serious expression on his face.

Seeing Dumbledore's silence, Eisen paused and continued, "Otherwise, the Quidditch World Cup is not held every four years, or in other words, the first Quidditch World Cup actually started as early as 116 BC But obviously, in the cognition of all wizards, these two statements are wrong."

"So, what do you think is the problem?" Dumbledore looked up at Eisen, his face terribly serious.

"I only thought of two possibilities!" Eisen said slowly, "Either, someone used magic to tamper with everyone's cognition—"

"No, I'm sure, in this matter, no wizard has such powerful magical powers that can tamper with everyone's cognition, that's something only a god can do!" Dumbledore interrupted Eisen, but his eyes There was a thoughtful look in his eyes.

"Since this is not the case, it is very likely that the adjustment made by time itself—" Eisen didn't care about being interrupted, and spread his hands directly.

"The regulation of time itself?" Dumbledore said, as if thinking of something, with a look of shock on his face.

"Ahem, I heard that the Ministry of Magic has previously conducted time travel experiments, resulting in at least 25 people who should have existed were never born. I don't know how the Ministry of Magic handled that incident, but maybe this is the correction of time itself A consequence of that," Eisen said in a calm tone.

"This is indeed shocking—" The shock on Dumbledore's face slowly subsided, "You're right, maybe the problems with the Quidditch World Cup do come from the distortion of history by time."

"So, when time itself distorts history, everyone ignores the problem?" Eisen followed Dumbledore's lead.

"That's right, but I'm curious, how did you find out about this problem?" Dumbledore looked at Eisen with a strange expression on his face, "If it wasn't for your reminder, I would never have thought about this problem. What about you? You don't Should this question be ignored?"

"Well, recently I have made a breakthrough in memory magic, and the Quidditch World Cup is about to start, so I have a firmer understanding of this aspect." Eisen said nonsense in a serious manner.

Eisen wanted to say that he possessed the power of time and could resist the distortion of time on his cognition, but he obviously couldn't say this.

"Okay, I admit that the problem you mentioned is indeed shocking, but what are you trying to do?" Dumbledore looked at Eisen, "Can you change this and make it normal?"

"Of course I can't, but don't you think this world is too dangerous?" Eisen shook his head.

Regarding the inconsistency between the time and the number of times the Quidditch World Cup will be held, Eisen really doesn't know what went wrong. After all, such loopholes in the "original book" have always been regarded as loopholes in the setting.

But after in-depth consideration, Eisen found that if he really wanted to find a reasonable explanation, he could only evade the side effects of time travel.

As confusing as time is in the wizarding world, Harry's 11th birthday was 31 July 1991, which fell on a Wednesday. But in the original book, Harry's birthday is arranged on a Tuesday.

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In addition, Hagrid and Buckbeak will go to London to attend the hearing on April 20, which should correspond to Wednesday. But Hagrid went to London on Friday.

Obviously, Eisen couldn't find any other reasonable explanation for such a confusing date. In the end, it can only be blamed on the side effects of the time travel experiment conducted by the Department of Mysteries of the Ministry of Magic.

But if this is the case, then the world may be more fragile than Eisen expected. Because he is not sure whether the world has been destroyed to the point of turning into a sieve, and various problems will appear in the future.

Thinking of this question, Eisen can't help but feel abrupt about his previous trip back to 1985 and using the time difference to make a crystal ball prop with the characteristics of a dementor.

However, the place where he performed his actions at that time was an uninhabited place in Antarctica, so it should not affect the development of history.

While thinking about it, Eisen has already made up his mind. When traveling through time in the future, it is best not to go back to the past after 1972, so as not to change the history of the whole world beyond recognition.

Of course, even if you want to go back to the time after 1972, you must abide by the principle of time travel not exceeding 5 hours.