Hogwarts Passer-By Professor

In a blink of an eye, the agreed time came.

On Sunday afternoon, Eisen left Hogwarts early after lunch and came to Hogsmeade.

Hogsmeade Village is said to have been established very early, almost at the same time as Hogwarts School of Witchcraft and Wizardry. At that time, a wizard named Hengis settled down near Hogwarts school in order to avoid the persecution of Muggles. Slowly, as time went by, more and more wizards came to settle here, and Hogsmeade Village was established in this way.

By this time, Hogsmeade has become the only village in the whole of England that is full of wizards and no Muggles. Of course, due to its proximity to Hogwarts, the school's professors and students especially like to hang out in Hogsmeade Village. Including Dumbledore and Hagrid, both regular visitors to Hogsmeade village.

Of course, for Hogwarts schools, first and second year students are not allowed to go to Hogsmeade village. Even if students in the third grade and above are going to Hogsmeade, they need a guardian's signature before they can go on a specific Saturday.

In fact, such a rule is very strange, at least Eisen does not understand why Hogwarts has such a rule for the time being.

Because in Eisen's view, there is not much difference between a second-year wizard and a third-year wizard. But third-year wizards were allowed to go to Hogsmeade. Moreover, if you are allowed to go, go, what is the guardian's signature permission? Are you afraid of accidents?

Well, Eisen doesn't know all of this, nor is he interested in delving into it. But speaking of it, although Eisen knew Hogsmeade Village, he didn't take a good look around here. So, while there is still time, Eisen plans to take a look around this wizard village.

After walking through the long street, Eisen saw the Devis-Bans store at the end of the main street in Hogsmeade Village, and immediately became interested, and went straight in without thinking twice.

After entering, I found that the various magic props sold in this store were beyond Eisen's imagination, and it was even more surprising than the Wiserek magic supply store in Diagon Alley.

I saw that this store sells various repair tools, as well as various magic props and equipment. There are all kinds of props for Quidditch games, such as memory balls, looking glasses, and anti-demon glasses.

Looking at these dazzling magic props, Eisen had a feeling that maybe if he just walked around here, he might be able to collect dozens of magic props that can be extracted by Gold Finger with extraordinary characteristics.

Thinking of this, Eisen suddenly felt tired. Do I really have to put so much effort into studying alchemy? For a moment, Eisen even doubted himself.

But after thinking about it, he has refined the observation mirror, a magic item that can provide perfect observation characteristics, so it is necessary to continue to study alchemy.

After all, what you learn will truly belong to you. Thinking like this, Eisen finally calmed down.

"Hi, do you need to buy anything?" Perhaps seeing Eisen in a daze alone, the owner of the Devis-Bans shop stepped forward and asked.

"Oh, let me take a look first." Eisen regained his composure, said to the other party, and then stepped forward to pick up a speculum to observe.

Since the miracle trait has not yet been acquired, Eisen doesn't know right away what kind of traits it will provide. It's just that Eisen actually has a certain understanding of the looking glass.

It is said that this thing can play an early warning role. Once suspicious people or the existence of black magic power are found, it will sound an alarm, rotate and emit light to remind the owner.

But Eisen thought it was a little too weird. The reason why it is called weird is because its function seems to be only half done.

Judging from the production results of the Marauder's Map, the effect of range detection magic combined with manifestation magic can mark everyone within the range together with their names.

Now that the looking glass can detect suspicious people around and issue an alarm, why not just mark the suspicious people directly? This made Eisen very puzzled.

If Eisen makes the looking glass, it can add the location and name of suspicious characters to it while retaining its original function. In this way, the early warning function of the looking glass will be more complete.

Is it because the function is too powerful, breaking the balance? After thinking for a while, this idea suddenly popped up in Eisen's mind, but it made him a little dumbfounded. This is probably to a large extent likely to be the truth.

Because if the looking glass really has such a powerful function, I am afraid that the wizarding world will have a looking glass, which will lead to many bad things that must be detected early and resolved. But in this way, in what direction will the plot development go?

Of course, if that kind of powerful looking glass is really popular, maybe some wizards will go to great lengths to develop spells or props that can block the looking glass.

Eisen smacked his lips, not knowing what to say.

However, when it comes to the function of the Marauder's Map that can instantly display the names of people within the detection range, even though Eisen knows it is magical, he still thinks it is too unscientific.

Because this kind of function is too outrageous, it can directly know what a stranger's name is. The question is, if a person's name has ever been changed, does it show the former name or the current name? What is the basis?

After all, a name is just a person's title and code name, which is acquired the day after tomorrow, so how can it be connected to a person? Is it relying on the reverse realization of the principle that as long as you know a person's name, you can curse? If this is the case, it can be explained.

But thinking about it, Eisen still felt a headache. Because he once again knew how outrageous the idealism of magic in this world is.

At this moment, Eisen has reason to believe that many bugs in the original Harry Potter book that can completely disrupt the plot and break the balance have been deliberately eliminated by the author.

As he thought before, if the function of showing people's names and places was really added to the looking glass, then maybe Peter Pettigrew would not have been able to hide in Ron's house for so many years.

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Perhaps, even Harry's parents had been able to hide ahead of time, evacuating perfectly before Voldemort arrived. In short, these things are not impossible. But obviously, if it is really arranged like this, then the whole story cannot continue.

But now that Eisen has already lived in this world and thought of this level, there is no need to turn a blind eye. Because of this discovered bug, Eisen of course hopes that the more the better.

"Boss, I want to buy a speculum!" With an eager expression on his face, Eisen bought the speculum in his hand.

Previously, one of the magic props produced by Eisen was the observation mirror, the second one was a simple modification of the tape recorder, and the third one he had decided to research into an enhanced version of the sighting mirror.

However, at the moment of making up his mind, some thoughts in Eisen's heart have actually changed slightly. Previously, he had always wanted to hide himself. As a passer-by professor, he didn't dare to change the plot arbitrarily, so that he could take advantage of the opportunity to act.

For this reason, he didn't even interfere with Voldemort's diary Horcrux's control over Ginny.

But as his strength became stronger and stronger, more and more ideas came up, and after he was able to realize the ideas, his own existence had become buggy.

This kind of bug is not a bug in strength, but a bug that can achieve exceptional effects after combining various whimsical ideas. For example, the observation mirror he made earlier.

If he handed the scope to Harry, then Harry would definitely not have to check out many things during the Hogwarts Night Tour. In this way, in the first year of school, Harry might directly find out what the truth of the matter is.

If he made the envisioned enhanced version of the looking glass and gave it to Dumbledore, maybe Dumbledore would be able to find Voldemort and kill him if he walked around outside with it. Well, this one still needed to deal with Voldemort's Horcruxes, but it would definitely come in handy for Dumbledore.

Even, during this period of time, he and Dumbledore have been working on an enhanced version of Apparition. Eisen could basically predict that if Dumbledore could master the enhanced apparition, his strength and mobility would undergo unimaginable changes.

Thinking of this, Eisen couldn't help baring his teeth, and a word popped up in his heart, that is "outrageous". That's right, Eisen thought that as a passer-by professor, he would not affect the development of the plot if he kept a low profile, but he didn't expect that he could already affect so much in a silent manner.