Chapter 132: Time Travel

"I can't tell you all the details of the plan. This was carefully designed by the Department of Mysteries to deal with You-Know-Who," Ollivander said softly. "I can tell you that the essence of Priori Incantatem is time magic, so we will add some structures to your wand, so that when you duel with Voldemort, the wand can connect to the power of time and defeat him."

"To be honest, I didn't quite understand." Harry scratched his head.

"This device can greatly enhance the power of one of your spells," Ollivander put a small sleeve on the end of Harry's wand. "This still uses the mechanism of Priori Incantatem. Suppose you cast the same spell before the duel, then what appears when Priori Incantatem happens should be multiple identical spells."

"Usually, the effect of Priori Incantatem is released in sequence, but if we speed up this process," Ollivander explained the principle of the device. "Let it release all the spells in a very short time, and they are all the same spell."

"Then the power of the spell will be greatly enhanced," Harry nodded suddenly.

"Smart child, but now this device needs to be charged," Ollivander touched his head. "Let Doctor Doudou help you."

"What do you mean?"

"The Chrono-Moment stores the potential energy of time. Simply put, you need a few time travels," Doudou said. "In the coming time, call me 'Doctor Doudou'."

"Alright, Doctor," Harry shrugged. "But you said, time travel, is this possible?"

"To some extent, we can only perform incomplete time travel, that is, we can only go back to the past, not to the future," Doctor Doudou said. "We made a large device called the TARDIS, which is more stable and safer than a Time-Turner. You seem to know nothing about Time-Turners?"

"To be honest, it's the first time I've heard this saying." Harry was a bit confused.

"In short, before July 1st, I have the right to use the TARDIS," Doctor Doudou walked to the wardrobe door of Ollivander and opened the cabinet.

Harry followed Doctor Doudou through the passage in the cabinet in surprise, and came to a huge, spacious operating room. He could also see more complex structures from the stairs going down.

"Time travel is a very dangerous behavior. You must remember, absolutely do not try to change things that have already happened. No one knows what consequences that will lead to," Doctor Doudou warned Harry seriously. "Of course, we are just sightseeing, I will ensure you don't cause trouble."

"I understand..." Harry answered woodenly.

"Then, where do you plan to go for the first stop? It's best not to be too far, how about last month?"

"Uh, if possible..." Harry was still a bit dizzy at this time. "Go see the moment of Quidditch victory again?"

"Of course, this is very simple..." Doctor Doudou fiddled with the console for a while, and then, amidst a tooth-aching braking sound, he announced "We've arrived."

Harry carefully opened the door of the TARDIS and found that this was his dormitory, and he was walking out of the wardrobe.

"This is the Chameleon Circuit, it will disguise itself as something that is not easy to attract people's attention," Doctor Doudou explained. "Oh, but our location seems a bit off. If you want, you can walk over, or we can... wait, who is that?"

Harry looked at the empty room in surprise. Under Doctor Doudou's reminder, he vaguely saw a transparent figure.

"It's me, but," Zhang Qiu lifted her invisibility, "shouldn't you be playing the match?"

"But I remember you were in the stands?" Harry looked at her suspiciously.

"Oh, this shows that we are both doing that kind of thing," she said playfully, "things that those who understand will understand."

"Are you also doing time travel? But what are you doing in my dormitory?" When Harry said the word time travel, he felt a panic, as if he was being stared at by something.

"That's right," Zhang Qiu admitted generously. "Neville needs to record the password on a piece of paper, and then the paper will be lost. I had a hard time convincing him to write down the password, and then picked a time when absolutely no one would be here to come and steal it."

"But how did you get in? Gryffindor's password—" Harry covered his mouth at once. "Oh, no wonder you kept asking me for the password, almost every issue, just to come back to this time point to steal the paper?"

"Right, have to compensate for the divination that didn't appear," Zhang Qiu shrugged. "But I used a secret spell to travel, you can understand it as a one-way train, each stop can only stay for half an hour."

Harry noticed her body was gradually fading.

"Speaking of which, where is the next stop?" Harry asked.

"Don't know, this spell is completely random, fate will take me to the right place," Zhang Qiu said flatly. "Actually, this is already my fourth stop. I didn't expect to meet you at the fourth stop."

"What you said is a bit strange." Harry tasted something wrong.

"At the second stop, I met Neville, he was actually also..." Zhang Qiu blinked. Harry found she didn't intend to say that word.

"But, Neville? Why?" Harry still wanted to ask more questions, but Zhang Qiu's figure was getting fainter and fainter.

"I can give you a suggestion, go to the divination class," Zhang Qiu left this sentence at the end. "The first divination class."

After her figure completely faded and disappeared, Harry fell into a daze again.

"Let's go back to the TARDIS first," Doctor Doudou took him back to the wardrobe, and then closed the door.

"It's best not to let others know you are time traveling," Doctor Doudou said. "Even people who are also time traveling, don't let them know. Of course, you can use hints, know it in your heart, but don't say that word."

"When I said it, I felt a palpitation," Harry said, touching his chest. "Why is this?"

"You have to know, although wizards can invent various methods of time travel, time itself does not like us running around," Doctor Doudou said. "Because this is easy to trigger a time paradox. When you feel palpitation, it is actually magic, or the wizard's intuition reminding you."

"Alright," Harry nodded. He was not completely ignorant of time paradoxes. The simplest one is if a person goes back to the past and kills his grandfather, then a paradox will be formed.

"But, what consequences will a paradox trigger?" Harry asked curiously.

"Don't know, but it must be a very dangerous consequence," Doctor Doudou shook his head. "You won't want to try it."

"Alright, let's go back to the first day of school," Harry said. "I remember Professor Trelawney said that I went to the first divination class. If that wasn't her hallucination, it means I did appear in that classroom. Now that we can time travel, maybe it would be better to really go and finish listening to that class."

"This is actually another paradox," Doctor Doudou said thoughtfully. "If you didn't go to that class, no one would say you appeared in the classroom, and even if you started time travel, you wouldn't think of going to the divination class."

"And the situation now is, you'd better go, because Trelawney knows you once appeared in the divination classroom. In order not to trigger a paradox, when you have the ability to time travel, you have to cater to the facts that have already happened. This is amazing, because whether you go to class or not, you can form a reasonable time loop, but the fact is you went to class."

"This is to say, actually it's okay for me to go to class or not, but why is the result that I chose to go to class?" Harry was also a bit confused. "Clearly I'm not interested in divination class and don't plan to go to class, right?"

"We know too little about time itself, maybe it also has its own will?" Doctor Doudou shook his head. "Take whether you go to class or not, actually besides not going to class, it has countless other possible situations, logically it can work, but time itself made a choice. It wants you to go to class, because this is fate."

"Fate." Harry had heard this word countless times. "So Zhang Qiu's divination will always show fate, and time always wants things to return to the track that fate should have?"

"Many times we have to work for time," Doctor Doudou said helplessly. "For time travelers, you will occasionally find that the facts of the past contradict your cognition. At this time, you must do something to make the facts and cognition consistent."

"Changing the past will trigger a paradox, but sometimes not changing it will also trigger a paradox, but sometimes it doesn't matter what you do," Doctor Doudou summarized the experience of time travel while manipulating the instruments. "The good news is that with me watching, you shouldn't have any problems. Let's go, it's time for divination class."

Harry walked out of the door gently. This time he walked out of a cabinet in an empty classroom, and not far away was the tower of the divination class.

He noticed Hermione was walking toward this side in a hurry with books, which made Harry raise his vigilance again, because Hermione also appeared in the Muggle Studies classroom normally.

Harry had reason to guess that Hermione was also a time traveler, and the secret of her taking all courses at once was to go back to the past and listen to the class again.

He didn't greet Hermione, but sneaked into the classroom very low-key.

Professor Trelawney asked the students to try tea leaf divination. She saw an ominous black dog in Harry's cup, which made him feel it was completely nonsense. How could his godfather's Animagus be related to ominousness?

Harry looked around boredly. He found Hermione seemed to have opinions about this class, and in the corner, Zhang Qiu, whose figure was gradually fading, waved at him.

"Alright, Doctor," after returning to the TARDIS, Harry said listlessly. "Do we need to continue traveling?"

"Yes, the charging is far from enough," Doctor Doudou said. "If you don't know where to go, then we can use the TARDIS's tracking function to see the stories of the other two time travelers."

In Harry's indifferent attitude, the TARDIS began to track the deeds of his two classmates. And when he witnessed the crazy operations of these two people, he only had one thought, and that was that it's good to be alive. ===== CHAPTER 133 =====