Hogwarts Passer-By Professor

After combat training, the trio escaped from the dream world and returned to the Gryffindor common room.

Whether it's Harry or Ron, although their training in the dream world can increase their own strength, the homework assigned by the professors still must be done.

Although Hermione's time was much more generous, it was no exception.

The Easter holiday is here, and for little wizards, it is far less interesting and full of fun than the Christmas holiday. One of the most important reasons is that the professors assign a lot of homework, which makes them complain.

In the corridors, halls of the auditorium, or in the library, Eisen found that many young wizards were either practicing wand-waving movements or copying various knowledge.

Some little wizards even sighed and yawned.

Especially for wizards above the third grade, there is absolutely no way to relax during the Easter holiday.

"It's called a holiday!" was Seamus Finnigan of Gryffindor wailing. "The exam is still far away. What the hell are they doing?"

Not only him, but Neville Longbottom was about to have a nervous breakdown.

But the trio is okay, because Eisen often cheats on them and sends them into the dream world, so it's ridiculous that they have enough time.

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Seeing the miserable appearance of the trio - well, actually looking at the pitiful appearance of Hermione, Eisen had to find time to delve into the dream world and develop a little method.

It is to reflect the homework written by Hermione in the dream world directly in the real world by means of magic. This way, the trio would have plenty of time to do their homework in the dream world.

Previously, it was not possible to do homework in the dream world. Because everything experienced in the dream world is real only with experience and memory. But the little tricks developed by Eisen allow them to copy the homework they wrote in the dream world to the real world.

This makes the trio much easier.

After having enough time, Harry and Ron took the initiative to take Buckbeak's eucalyptus. Eisen didn't say anything about it.

Several times, Eisen saw them looking up materials in the library, such as "Hippogriff Psyche Handbook", "Study on Hippogriff Barbarism", etc., and they seemed to be immersed in it.

Although Eisen knew that what they were doing was useless, he couldn't stop them directly. After all, this is their kindness.

...

On this day, Eisen left Hogwarts and instantly came to the top of the Khufu Pyramid in Cairo, Egypt.

As for coming here suddenly, of course it was not to take a look at the surrounding scenery or anything. Instead, to conduct time travel again, conduct an experiment.

Previously, Eisen had buried a card with a magical seal at the gate of Hogwarts, near the wall. But after returning to modern times, the playing cards disappeared miraculously.

At that time, fearing that history would change, he deliberately waited for a long time, just to see if there was any change in the wizarding world.

However, after a period of silence, he found that the sun rose as usual every morning, and there were no relevant reports in the wizarding world, so he knew that his previous experiment of going back to the past had not changed history.

In this regard, Eisen has a lot of speculation, but he can't figure out what's going on. The purpose of time travel this time is to rule out some possibilities and determine what is going on.

Moreover, in order to avoid being disturbed by humans or by magic, Eisen simply put the destination at the top of the Khufu Pyramid.

With a thought, Eisen activated the silent power of time characteristic in his body, and then disappeared in place in an instant.

As if entering another dimension, the surroundings are pitch black. Before he can feel it carefully, the surrounding light is bright, and the surrounding scenes have been reflected in Eisen's mind.

Time has turned back to January 1, 1900. The location is still the top of the Khufu Pyramid in Cairo, and at first glance it seems that there is no difference from a hundred years later.

Because there are wizards in the world, in order to prevent being discovered by Egyptian wizards, Eisen had cast the illusion spell on himself the moment he returned to 1900.

Since this experiment was mainly to verify his conjecture, after coming to this era, Eisen did not intend to go anywhere, but acted directly on the top of the pyramid.

With a thought, a card was pulled out from the storage ring, and Eisen was about to embed it in the earth and stone under his feet. But halfway through the action, Eisen stopped suddenly.

"More things can indeed verify certain things, but it's better to just have less things!" Eisen muttered.

Just when Eisen was about to put away the cards, he couldn't help but patted himself on the head, "Since both methods are acceptable, why choose between them, just verify the two methods together!"

At present, the cards with the magic imprint are tiled and inlaid in the corner of the top edge of the pyramid, making this change seem less obvious.

Then, Eisen's movements did not stop, but directly pulled up with his hands beside him, smoothing out a place. Originally, the top of the pyramid was uneven, but after being smoothed by Eisen, it became like a flat stone slab, with obvious traces of man-made.

A few minutes later, Eisen stood up, looked at the place he had changed, and sighed slightly. Eisen can only express his apologies for the slight damage to the cultural relics such as the pyramids.

Glancing around, the desolation of the scene is as if it has not changed for thousands of years, which makes people feel a lot of emotion.

Then, after calming down his mind, Eisen moved his mind again, and his whole figure disappeared in an instant.

Eisen's eyes went dark, and then the light brightened. At this time, he has returned to modern times again.

Eisen didn't open his eyes, but was quietly waiting for something. After a few minutes passed, Eisen didn't notice anything unusual. Afterwards, Eisen realized that his time travel did not suffer backlash.

Presumably, Eisen followed the rule that time travel cannot exceed five hours.

After opening his eyes, Eisen found himself still standing on the top of the pyramid.

As soon as he moved his footsteps, Eisen looked at the place where he made a little movement after returning to the past, but his expression couldn't help but change.

I saw the place where the cards should be inlaid logically, but there was no sign of the cards. On the other side, the place that should have been smoothed like a slate has returned to its original state.

At first glance, it seems that Eisen did not return from 1900 to the present, but from 1900 to the farther past.

Those places manually changed by Eisen, as if time has flowed backwards, become exactly the same as before. What the hell is this?

God's perspective was fully open, and all the scenes within a five-mile radius were reflected in Eisen's mind, and he didn't notice anything unusual.

Crouching down, stretching out his hand to caress it, Eisen couldn't help shivering.

"It's impossible—" Eisen couldn't help but mutter.

According to Eisen's deduction, he directly destroyed part of the structure of the top of the pyramid, which is considered to have actively changed history. It's just that this level of historical change has little impact on the entire world, so Eisen didn't take it seriously.

But the problem is that after returning to the present, Eisen finds that his changed historical actions seem to have been completely eliminated. It's as if, after Eisen destroyed the pyramid and turned away, someone later restored it.

Is this the truth? Thoughts turned in his mind, Eisen hesitated. If you go to investigate slowly, Eisen is sure to find out what is going on with some things.

After all, Egypt wasn't exactly a wizarding desert. From the relevant history books of magic, it can be seen that ancient Egyptian wizards cast spells on tombs.

At present, the Gringotts spellbreakers are still doing some work to break the spell. They hope to regain the financial report in the tomb through such means.

To say that Gringotts' actions did not have the consent of the Egyptian magic organization, Eisen would not believe it.

However, it would be too troublesome for Eisen to really investigate.

So, why don't you simply change it to a simple and rude way?

Thinking of this, Eisen looked around and let out a long breath.