Hermione's magical book had been getting hot from time to time lately, and then a certain piece of the record would be erased and left blank.

According to Hermione's observations, this blank log is overwritten all the way forward from the current point in time.

When the pages of the book that record the entire history of this world through the ages become blank, it means that there is no history and no past in this world.

"It must be a powerful magic."

Hermione rolled comfortably on the bed and rolled forward on her back.

The pages of the history of the years are endless, changing from moment to moment.

Each time you enter a different world, you will gradually generate many new pages and record all the important events.

But now, Hermione turned more than fifty pages in a row, all blank.

"Again, the handwriting is disappearing."

Right in front of her, on some kind of page, the handwriting of the major events of history faded and became blank.

Frustratedly tossing the book aside, Hermione quietly opened the suitcase and pulled out a silver cloak that looked a little old.

"The invisibility cloak made of the fur of the invisible beast is worth three hundred and seventy gold gallons for one year."

She plans to do a fun activity – a night tour of the campus.

Back when she was a third-year Hogwarts student, she participated in several night tours.

"It's a pity that I have to go alone."

Every world has a Granger family, but none of them belong to her.

In every world, she is alone.

"Clock Tower, I don't know if there's anything interesting."

Put on the cloak of invisibility and disappear in an instant.

"Silently, eliminate the smell."

Finally, I added a Ignore Charm to myself, so that it would not be easy to detect.

Put the wand away, quietly unscrew the doorknob, and walk out slowly.

On the ceiling of the corridor, there is a lamp, illuminating the corridor.

The girls' dormitory where she is located is the first room by the stairs.

Soon, there will be new students in these luxury single apartments, but now, she is the only one living here.

"Well, I almost forgot, the school is empty right now."

Hermione was a little timid, the entire clock tower was now mostly empty, almost the entire campus.

Except for a few employees and the principal, there are almost no people here.

By the time the scheduled students had not yet arrived, she had not seen any of the professors who were supposed to appear.

It's still a bit psychologically stressful to think of a person wandering around an empty campus.

However, it was not difficult at all, and she still wore an invisibility cloak and carefully wandered around the campus step by step.

Unlike Hogwarts' tossed aisles and ever-changing staircases, the clock tower is more akin to a modern university campus, where everything is normal and full of academics.

Hermione quickly learned to converse with the portraits, as she found that most of them were knowledgeable scholars, philosophers, and portraits of ancient scholars like Newton and Aristotle were not uncommon here.

They usually exchange some ideas and continue to think and research in their lifetimes.

It's just that Hermione hasn't been able to ask how the experiment is done in the painting, and whenever she mentions it, all the people in the painting will close their eyes and say nothing.

"It's amazing that they can do experiments, observe the movement of the stars, and even go shopping!"

"It's not something that can be done easily! The portraits of the Clock Tower are fundamentally different from those at Hogwarts! ”

At the end of the night, Hermione seemed to have discovered something, and her curiosity forced her to fly to the headmaster's dormitory and ask about the secret.

This desire to find out the truth reached its peak after she saw with her own eyes an extra apple on a portrait!

"There must be some esoteric secret hidden in the portrait, I want to find out about it!"

Excited, Hermione returned to her bedroom, sat down at her desk, pulled a quill and dipped it in ink, and wrote down her findings in her personal diary.

"The portrait of the clock tower seems to be connected to a world in which they can travel freely, and even there is a cosmic starry sky, which is the same as the natural laws here···········

There are a lot of extra blank pages, so I could write a little more.

In fact, she could have written in other diaries, but that could have revealed her secrets, and "Song of the Years" was only open to her so far.

Even Dumbledore, who was once in a certain world, was helpless about it.

After writing this, she put away the invisibility cloak and hurried to the bed to rest.

Tomorrow, I said that I would learn swordsmanship from Teacher Lily.

In the silence of the night, the magic book lay there quietly.

·········

Ministry of Magic.

"Based on the current chaotic world situation, the phenomenon of time regression with troubles, and that terrible prophecy········· I propose that a backup plan be put in place to prepare the last hope left for the Ministry of Magic after it has suffered a major blow. Someone had to stick to the plan, survive the cold winter, and rebuild the Ministry of Magic. ”

"Codename: Project Winter!"

In this secret conference room, four people pointed to the land of Britain as witnesses, their hands only lying on their backs, their wands against them, and the sparks of magic continued to burst.

Instead of the ordinary version of the unbreakable covenant, which was contracted by two people and witnessed by one person, they chose the older original version.

It is a vow that can be passed on to the earth as a witness, and that powerful magic can even be extended to their descendants.

"I, Donald."

"Catherina."

"Leitner."

"Ian."

Then they read the oath in unison.

This step requires each of them to make an oath with sincerity and extreme firmness in order for it to take effect, and any coercion will only lead to failure.

"I will defend the glory of the Ministry of Magic to the death, and after the Ministry of Magic has suffered a major blow and is even forced to disband, I will do my best to keep in mind the mission of rebuilding the Ministry of Magic, and pass it on from generation to generation until it is realized."

"In the process, I will try to ensure that this secret is not discovered, and that no details of the winter project are revealed."

Circles of flames wrapped around the arms of the four of them, and a map of Britain loomed in them.

"We are divided into four, keeping each other secret, reuniting every ten years, and reinforcing the contract so that its effectiveness does not decay."

Secretary Donald added the phrase.

Another circle of flames, entwined with it, was promised by four people at the same time.

"Even in the event of a conflict of interest, we are willing to protect our secrets and never betray them."

"In any case, we can do not try to evade this responsibility by any means."

“············”

As the oaths were spoken, the flames almost surrounded them.

Finally, the contract was completed, and it was imprinted on their wrists as if they had been scalded by boiling water.

Then, the mark of magic flashed.

"Okay, the oath is established."

With a rare smile on his face, the minister said:

"I'll keep Project Winter top secret, and I'll keep the names of all four of us until the next Minister of Magic succeeds me."

Forty-eight years from now, the current minister will not be able to see it.

The Winter Plan itself is a hypothetical backup plan for the Ministry of Magic to suffer a sudden and unpredictable blow, fall into a collapse or even split, and make a comeback in this unfavorable situation.

Hypothetically, the enemy took control of the wizarding world, and they had to take some of their own materials and go underground in order to one day make a comeback and rebuild the Ministry of Magic.

After writing the only plan on the spot, the minister magically sealed it on the spot, and a black hole appeared out of thin air inside the room, looking like a letterbox.

"It's a secret magic, only the real Minister of Magic can find it, see the top-secret file inside."

"In fact, it's never empty."

"If you want to hide something, you have to pay a price forever."

"It's like this—"

Biting a towel, the minister amputated the little finger of his left hand, and almost fainted in pain, sweating like rain.

"It's an incurable injury, and only then can the magic be strong enough to keep the secret from being seen or lost."

The man next to him stopped the bleeding with magic, and watched him put the parchment with his own hands, and the black hole turned into a puff of smoke before dissipating.