Lynn's eyebrows frowned and he pondered what Dumbledore had just said.

"What if a professor or another little wizard saw two same little wizards taking different classes while taking Muggle Research and the Fantastic Animals class?"

Dumbledore looked at him with a serious look on his face.

"This is the case you want to avoid. The time converter can take you to the past you want to go, but can't bring you back. If you want to go back to the time when you rotate the converter, you must avoid all the dangers yourself, and hide from the history you return to until now and then appear again."

"What if someone noticed two me appeared in the same timeline?" Lynn looked at Dumbledore heavily.

"That means that the known history has been changed, and something very terrible will happen to you." Dumbledore said calmly.

Lynn didn't hear any intimidation from his tone, he was like stating a straightforward fact.

"What a terrible thing?"

"No one knows what that is except those who have experienced it. I can only warn you Lynn, time should not be played with, because you can't tell whether it's you playing with time or time playing with you."

Lynn was silent for a long time. He was not frightened by Dumbledore's words, but was thinking about things that were known to history.

"I went back to the past and could only see who opened the secret room and let the basil monster go, but I couldn't stop him, right?"

"This is what I also emphasized to you. The secret room has been opened and the snake monster was let go has become a certain history. You, me, and the person who let go of the snake monster know about it. Then this known history cannot be changed. If you see who let go of the snake monster, you can remember his face, but you must not stop him."

Lynn looked at the jumping fire in the fireplace and pondered.

"If, professor, what if... what if... the basil monster that disappeared in the secret room was killed by me when I returned to the past? And now, in Hogwarts, there is actually another me who is hiding in a secret place. The moment I come back from the future, waiting for the present me to use the time converter, he will appear and complete this time replacement."

Warm orange flames filled the entire principal's room, and Lynn's words brought a strange atmosphere to it.

Dumbledore was silent for a few seconds and slowly spoke: "Why is this possible? If you have been staying in the secret room and have not come in to do this a few hours before you first discovered that the basil monster in the secret room disappeared, then the only person who opened the secret room and took the basil monster away was you."

Lin Neng folded his hands and looked ahead with a dazed look. He was thinking whether the person who opened the secret room to take away the Snake Monster would be himself. If it were himself, why did he do this? The Snake Monster was taken to take it again?

He couldn't think of the answer, and only when he experienced it himself could he get the result.

The silence in the principal's room lasted for a while, then Dumbledore sighed and spoke.

"No matter what the truth is, we can't guess what's going on here now. I'll know the result tonight, and you'll have to go through a three-week time trip. Let's talk about some relaxing things before that. Do you know you went there when you came to the office to find me when I was not here?"

Lynn looked at Dumbledore with a puzzled smile and shook his head blankly.

"What I'm going to do has something to do with you." He took out a piece of parchment from the drawer of the desk. "You are in third grade Lynn this year, and third grade students are allowed to go to Hogsmeade for a weekend relaxation, but we need to get your parents' consent before that."

Lynn looked at Dumbledore in confusion. He had no parents at all now. He took out this consent form and who else could he sign it...

No! He does have one parent who survives in the world, and he is the only one!

He took the consent form from Dumbledore, looked at the last signer's name and his hand holding the parchment trembled slightly.

Gellert Grindelwald

"You went to find my...uncle?" Lynn said in disbelief.

Dumbledore had some remembrance in his eyes, and he nodded with a smile: "That's right, I went to Austria some time ago. In addition to visiting him, I also consulted his opinions and asked him to help sign your consent form."

Lynn looked at the signature that was not good-looking and even a little ugly, and caused a long-lasting turmoil.

He has always heard from others that Saints, Dumbledore, and the wizards of the Soviet Union all have highly praised or criticized his only relative. Although he heard the name every day and knew that he was close to his blood, this time the closest distance between them was.

Dumbledore actually went to Newmongaard specifically and asked him to sign the consent form!

"He... knows I'm in Hogwarts?" Lynn asked in a dry voice.

"Even if he never came out of there, there are few things in this world that he didn't know. He was a natural prophet." Dumbledore said softly, "I talked to him about you a lot. He was just listening. Although he had never commented on you, I could see that he was very satisfied with you."

Lynn looked at the consent form in his hand silently and thanked Dumbledore: "Thank you, professor."

"No need to thank me, I just happened to go and talk to him. Also, he asked me to bring you a word."

Lynn looked up at Dumbledore, who looked straight at him, conveying the words of the old man who is now imprisoned in Austria.

"The deadliest danger is often what you ignore the most before it is revealed."

Lin En was stunned after hearing this. He pondered what his uncle said to him and thought about what he was referring to.

Dumbledore did not interrupt Lynn's thinking. He waited quietly for ten minutes. Lynn shook his head. Perhaps it was time for something wrong. He did not guess the meaning of the metaphor in this sentence.

"Professor, we can start now."

Dumbledore puts the time converter on his desk: "Are you ready?"

Lynn held the converter in his hand, and the cold feel relieved the slight tension in his heart.

"certainly."

"When are you going to go back?"

"Three weeks ago, that is, the day of the school dinner."

"Rewind the pointer on the time converter, and it will take an hour to turn it back. It is now 10:15 pm on September 21. You need to go back to 7:00 pm on September 1. You need to reverse the time by 483 hours and 15 minutes, that is, you need to turn the pointer back 483 circles and add a quarter of a circle."

Lynn held the converter and looked at Dumbledore: "Am I going to start here now?"

"Yes, you start in the principal's office, I will go out. There can't be anyone else around you when time goes back." Dumbledore stood up from the chair and finally solemnly reminded Lynn, "Be sure to remember the time now. At 10:16 on September 21, I will wait for you outside the principal's office. No matter what you have experienced in these three weeks, you must return to the principal's office at this time."

Lynn took a deep breath and nodded calmly.

"I will come back to the professor."

Before leaving the principal's office, Dumbledore left his last blessing: "Good luck, Lynn."

Lynn stood in the principal's room, holding the converter with his left hand, and the index finger of his right hand began to gently undulate the pointer.

The moment the pointer turned, a loud thunder sound suddenly came from his ear!
Chapter completed!