In the Harry Potter Without Harry Potter

"This conclusion of yours isn't too arbitrary."

Jon did not directly say Ron's reasoning is wrong, his reasoning logically did not have many issues, it's just there are some inconsistencies in the final conclusion.

"There are many reasons for not being able to use magic, I would say that the possibility of Filch being undercover is very small, while the possibility of him actually not being able to use magic at all is greater."

"How is that possible!" Ron raised his voice, "How could there be someone who couldn't use magic in a magic school, the muggles can't even see our wagon, let alone come up here."

Jon stared at him.

"Who said only muggles couldn't use magic?"

Ron did not figure out what Jon was referring to at first and spoke subconsciously.

"In addition to muggles, there are only wizards, and as long as they are wizards, how can they fail to learn magic? "

On the other hand, Neville caught Jon's implication.

"Jon implies that Filch is likely to be a Squib. "

Ron froze at once.

"He's a Squib? "

Justin, meanwhile, looked confused.

"What's Squib? "

Neville explained to him, "Squib is a person who has magic present in his/her body but has no way to learn and use magic, these people usually lived in the magic community before, they know about the existence of magic and wizards, but they are not much accepted by wizards. "

"If Filch is a Squib, then he can never be a spy of the Ministry of Magic because according to the current magical laws of the Ministry of Magic, Squibs are not qualified to live in the magical community. Once discovered, regardless of whether they are purebloods or half-bloods, they will be wiped of all memories about the magical world and thrown into muggle society left to fend for themselves. "

"And I heard that most of these people become homeless in the muggle society; they do not have the knowledge and skills of muggles, they also lost the memory of the magic world nor can they use magic, and many even forget who they really are, where they come from, for what purpose they live in this world, and live every day as the walking dead."

"With all the current policies and discrimination that the Ministry of Magic imposes on Squibs, if Filch is really a Squib, then there is absolutely no possibility for him to become a Ministry of Magic's spy unless he has been under the Imperius Curse."

After this detailed explanation from Neville, Justin finally understood why a squib would not work as a spy for the Ministry of Magic.

But the matter of Filch being a squib also stems from the same basis as Ron's speculation of Filch being a spy, from the fact that he had never used magic in school.

Ron would naturally be more willing to believe his own speculation, even though it seems that the squib theory actually makes more sense now.

Looking at how his eyes shone with the gleam of 'I just want to make it big a deal', Jon couldn't help but say helplessly.

"Speculation is speculation, if you really think Filch is a spy, you should tell Professor McGonagall and the others about this suspicion, but don't mess around by yourself."

Ron brushed it off.

"Professors wouldn't believe me, they all think Filch is a competent caretaker."

From the original story, you can tell, that both Ron and Harry are troublemakers, now although Harry is gone, Ron's character has not undergone a huge transformation like Neville, his mind is restless, always trying to make something huge to attract attention of others.

Jon is not a kind person who wants to stop Ron from getting into trouble, but he knows very well, that with the current situation at Hogwarts if there is any big disruption caused due to this trivial matter, it will put too much pressure on the hearts of the students.

So in order to keep Ron from getting screwed up and ending up dragging down a wagonload of people, he opened his mouth and proposed.

"In fact, the issue now is very simple, you suspect that Filch is a spy of the Ministry of Magic, but if he is a squib, then the reason why he has not been using magic can be explained, and 'spy' will simply become pure nonsense. So if we can just verify whether he's a squib or not, then the problem will be solved."

Ron blinked.

"The point is how can we prove that Filch is a Squib?"

"That's very simple, follow me."

Jon put down the parchment in his hand and led three of them, Ron, Neville and Justin, out of the dormitory and headed straight towards Filch's office.

When he noticed where he was heading, Ron's face showed excitement.

"Are you going to duel with Filch? Yes! If you force him to fight now, we can find out whether he doesn't know magic or doesn't want to use it at all!"

A concerned expression appeared on Neville's face, he felt that Jon is not supposed to be this impulsive.

But no matter what they thought, Jon had arrived at the door of Filch's office and knocked on the door.

After they stepped in, the caretaker with the fish-like eyes looked at them with an unfriendly expression.

"What do you all want from me?"

Ron's face showed anticipation, and he began to fantasize that in the next moment Jon would draw his wand and challenge Filch, the old geezer, to a duel.

Neville looked like he wanted to stop Jon, but he knew very well that Jon would not change what he had decided easily with his character.

Justin was eagerly watching the show, he felt very interested in the wizard duel.

However, Jon's next words caused everyone's jaw to drop.

"You are a Squib, right? Filch."

Jon's straightforward words plunged the entire office into an eerie silence.

The three of them looked at him with jaws dropped, while Filch also looked stunned, as if he had been struck by a Full Body-Bind Curse and remained still in place.

But although his body did not move, Filch's old face became pale with the speed visible to the naked eye.

The fireplace in the office is very warm, but they still need to wear a jumper to reach the most comfortable body temperature, yet at this moment, Filch who only wore a thin shirt was secreting fine beads of sweat on his forehead, it looked like he was suffering under 40 degrees heat of the sun.

He opened his dry lips, his throat produced a strange "ho ho ho" sound, which lasted for close to two or three minutes before he screamed in an almost hysterical voice.

"What are you talking about! Who is Squib! Are you attempting to defame me and make me lose my authority as a caretaker so that you can fulfil your fantasy of lawlessness in school! I tell you! Dream on! I'll punish you! I'm going to put you in detention! For one semester! For defaming the faculty! Let the whole school see what will happen to those who do that!"

In the face of Filch's exasperation, Jon's face remained calm.

"You wouldn't be able to do that, because Professor McGonagall won't even approve this penalty of yours. There is indeed a rule in the school rules that forbids defaming faculty members, but I'm telling the truth, and Professor McGonagall absolutely won't do something against the school rules. And if it comes to that, then the whole school will know that you are truly a Squib."

Filch looked at Jon with eyes that seemed like they were about to burst out, the panic and fear that threatened to overflow in his eyes could not be hidden at all, and even Ron and Justin both could clearly see that he was panicking.

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