I Have a Big Problem with My Hogwarts

10 p.m. Tuesday night.

Harry and Ron met in the Gryffindor common room at night.

They all looked exhausted. At noon today, Professor McGonagall punished them for driving a flying car into the school at the beginning of the school year, and smashing the beating willow.

Ron was sent to Filch to help him clean all the trophies in the trophy room without using magic.

And Harry was sent to clean the public toilet in the hallway in the castle. They have been busy from three o'clock in the afternoon until now, there is no one else in the common room, and they are the last two to come back.

Instead of going back to the dormitory first, Harry and Ron lay down on the couch in the lounge near the fireplace.

"I feel like my hand is about to break. That old Filch must have done it on purpose. He was staring at me the whole time, and he only gave me a minute to go to the toilet, even if I solved it on the spot for a minute. Not enough." Ron complained to Harry, rubbing his sore and numb arm.

"You're just tired of your arms," ​​Harry said weakly. "I cleaned at least eight public bathrooms today. God knows how many times I threw up? Even I still feel a stinky smell on my body."

"Ah, then don't get so close to me, the stench will spread to me."

"Anyway, I have to take a shower for a while, and I will get it if I get it."

They made a fuss for a while, and soon they talked about "business".

"Why haven't you seen Hermione these days?"

"Yeah, she doesn't seem to be in the Gryffindor lounge since the last time she was at the Quidditch pitch, and even if we saw her, she hurriedly greeted us, It looked like he was busy with something."

"It's mysterious."

"She must be hiding something from us."

The two of them looked at each other and saw the same thoughts as theirs in each other's eyes.

"We can investigate her secretly."

"I think so."

Harry and Ron smiled at each other, raised their fists, and when they were about to touch each other, the whole castle suddenly shook!

"Boom!"

A huge explosion sounded like the thunder before the rainy night in the quiet summer, awakening countless little wizards who had just fallen asleep!

Tuesday at 4pm.

In Dumbledore's headmaster's room, Lynn sat across from the desk as usual and silently watched as Old Deng Tou took out a golden glowing timer from the drawer.

"It's not difficult to apply for this thing, but as long as you apply for it, you have to sign it together with this letter of commitment."

Dumbledore pushed Lynn a piece of parchment, which asked Lynn to promise that he would not use the time converter for things unrelated to learning.

This commitment is not a magical contract, but just a written agreement with legal effect. This form of agreement means that even if the person who signed the commitment violates the commitment, as long as no one finds out, it is not a breach of contract.

Lynn didn't hesitate and signed his name directly on it.

After he signed the promise, Dumbledore did not give him the time converter directly, but said in a deep voice.

"You know you can go back in time with this thing, but why doesn't anyone think about using it to change the past?"

Lynn scratched his eyebrows and pondered: "I seem to have seen it in a book, the time converter can only be used to understand history, and cannot change the historical trajectory that has already happened."

"You're only half right, the time switch can't really change the history that has happened, but it can change the history that hasn't happened yet."

"What's the meaning?"

"The current existence time switch has basically become a learning tool for Hogwarts. Excellent, but the little wizard who does not have enough time can apply to the professor to obtain it. The professor will consider the quality of this little wizard. If If he is calm enough, wise, and pays attention to the rules, then he satisfies the conditions for using the Time Transformer.

After the little wizard got the time converter, the main purpose is to use it to teach time-conflicting courses, such as today's two elective courses - Muggle Studies and Protection of Magical Creatures. The class time is conflicting, Then the little wizard who gets the time-turner can turn the time-turner after the Muggle Studies class and go back to the beginning of the class to take the Protection of Magical Creatures class.

There are two points in time. The first one is after the Muggle Studies class. This little wizard with a time-turner attended the Muggle Studies class. This has become a history. He uses After the time switch has returned to the past, he can no longer change this established fact.

The second time point is when the little wizard uses the time converter to go back to the past and completes the protection of magical animals class. This time is actually the same as the time he uses the time converter. But at this time, he changed a history that had not yet happened, and he took two different courses at the same time. "

Lynn frowned, he didn't understand what Dumbledore said.

"About the second point in time, he took two different courses by himself. This has already happened after the course started. How can what has happened be called history that has not happened yet?"

Dumbledore shook his head: "It did happen, but while these two classes were in session, who knew there was a person who was teaching two different classes at the same time? Children in Muggle Studies Only saw this little wizard come to the Muggle studies class, the children in the protection of magical creatures class only saw him come to the protection of magical creatures class, in the memory of everyone who saw this little wizard, he only took one. class."

Lynn countered.

"Then if the little wizards who have taken these two classes meet after class and tell each other that the little wizard has attended the get out of class they are taking, then no one will know that he is taking two different classes at the same time. History?"

Dumbledore smiled and looked at Lynn with meaningful eyes: "Pay attention to the timing of what you say, Lynn."

Lynn was startled.

The time he said was already after the two classes had finished. At this time, the little wizard had returned to the time he used the time converter, even if the two little wizards in the two classes breathed after class, Then they knew that this matter also belonged to the future after the time-turner was used.

And the future means what hasn't happened yet!

"That is to say, the history determined by the time switch does not represent the objective history, but the subjective history of people?" Lynn asked thoughtfully

"The moment you use the time-turner, objective history has been changed."

One more chapter at ten