Hogwarts: Wizards of Eternity

Time flows every moment.

But what exactly is time? There is no definitive answer.

Muggle science has its definition of time, and the wizarding world also has its perception of time.

Roger knows a little about both theories of time.

The principles, though not entirely clear, Roger does have some practical information in his hands.

The books Professor McGonagall lent Roger were mostly theoretical research and data reports, including an internal research report from the Ministry of Magic released a long time ago.

Having already obtained the ability of absolute memory, Roger, relying on his impression, used magic to reprint a copy of the book.

Transfiguration, once mastered, is really too useful.

《1899, Summary of Time Travel Experiments》.

In the report, the author from the Department of Mysteries described in detail that none of the people who had undertaken ultra-long-term time travel in the past had survived.

After multiple tests by the experimenters, the safe time travel limit was within a few hours.

Of course, this safety is also relative.

In fact, it is not that short-term travel has no risks, but that when the journey is too short, the impact you cause will not be amplified too much by the chaotic butterfly effect of time and space.

As long as you don't deliberately cause trouble, the possibility of being backlashed by the power of time will be reduced.

At the same time, the Department of Mysteries also verified through experiments that directly casting time-space spells similar to the Hour-Reversal Charm is not the best choice for time travel.

The release of the spell itself will be affected by the wizard's distractions.

It doesn't matter if you release small spells like the Levitation Charm, even minor errors caused by distractions are difficult to affect the completion of the spell.

But time-space spells are different. It's a real case of 'a hair's breadth difference leads to a thousand miles astray'!

Encapsulating time-space spells into a magical artifact and turning it into an alchemical item is the best way to use these unstable spells…

Hmm, the result of their research at that time was the Time-Turner.

At the end of the report, the author mentioned the great disaster that the Department of Mysteries had caused 'this year'.

18 Mintabu was trapped in 1402 for five days.

When she returned to the present, her body had aged five centuries, causing irreparable damage, and she soon died in St. Mungo's Hospital for Magical Maladies and Injuries.

Not only that, but during those five days in ancient times, she severely interfered with everyone she had ever met, drastically rewriting their lives.

At least twenty-five of their descendants disappeared from the present, becoming people who were 'never born'.

This is just the consequence that the Ministry of Magic has observed.

Who knows if more Muggles will 'disappear' silently because she moved a wooden stake five centuries ago, no one knows.

This report has no other content after this.

Because since 1899, ultra-long time travel has become a taboo of the wizarding civilization.

There are at least hundreds of laws and prohibitions specifically established for time travel, and the related experiments of the Department of Mysteries have also been permanently stopped, and this remains the case in 1991, nearly a century later.

…It has to be stopped.

Even top wizards like Dumbledore can't withstand the impact from the upstream of the timeline.

What if someone's brain twitches and rewrites the past, ruining the entire world?

The chaos of time is too strong.

Sometimes, just moving a chair or destroying a horseshoe can completely change the world line.

No one wants to disappear.

If anyone dares to play tricks on this, then don't blame the world's strongest wizards and the Blue Star's five ruffians who know the information for collectively having a heart-to-heart talk with you!

The Ministry of Magic has always had contact with the British government, and other countries are similar.

The Statute of Secrecy is aimed at most people.

The real upper class of Muggle society has always known about the existence of wizards.

While reading Roger's freshly printed report, and listening to Roger's explanation, Harry couldn't help but look back at him: "…According to what you said, reversing time and space to save my parents, isn't that completely impossible?!"

Seeing Harry's expression of 'Are you kidding me?', Roger smiled and shook his head: "No, on the contrary, the path to salvation is in this report."

"Given that time travel itself will accelerate the aging of the traveler, then as long as one can achieve immortality, wouldn't that be the same as not having this side effect?"

"Changing the established facts that have happened in the past will cause unpredictable consequences for the future, so don't change it, instead complete your operation in the 'blind spot of time'."

Saying that, Roger gave an example.

"For example, now your heart stops beating and your body dies, this is an established fact that has been observed.

If it is rewritten, it will cause the 'world line that continues based on your death' to be destroyed, and time will flow in another unknown direction."

"Then I can use the 'blind spot of time'."

"When I have the ability to reshape the body for the souls of the dead in the future, I will return to 'this moment', deceive my perception at this time, take away your soul, and resurrect you.

At the same time, I will completely 'freeze' your body and consciousness in a space gap that I opened with space magic, and no one but me can open it."

"I return to the future, and in the future, I will awaken your already resurrected consciousness and take you out of the 'time-space sealed capsule' called the space gap, without changing the slightest bit of the past, and without bringing anything from the past to the future, minimizing the backlash of time and space."

"Of course, if you really want to put it into practice, the problems you encounter will definitely be more, more complex, and more difficult than the example I gave."

"But this is indeed a way of thinking to solve the problem."

Roger said to Harry like this.

Harry's parents have long been corpses and their souls are nowhere to be found.

If you want to resurrect them, time travel is indeed the least difficult of many methods.

Harry's pupils lit up for a moment, but quickly dimmed again.

He remembered that his parents were killed by Voldemort.

If he wanted to do the set of operations that Roger said, he would have to have the ability to hide from Voldemort's perception and do things under his nose at the very least.

…Is this possible?

Not to mention the immortality that he doesn't know how to achieve.

"You don't need to think about immortality.

If I have results, I will help you get it done…of course, this is not free."

"You only need to consider how you will reverse time and space.

This is very difficult, you may have a long way to go, maybe the time will be calculated in centuries."

"But, having some hope is better than having none, isn't it."

Roger patted Harry on the shoulder: "In short, you now have a general understanding of the difficulties involved.

If you still want to go this way, come to me tomorrow and I will give you a reading list."