This one's really not a school mystery - rather just a mystery involving my grade at school.
In this particular school, I studied there since I was a sixth grader. In the whole grade, there was one silent girl.
Typically, always having her head down. She was so frail looking. She was thin, short, always sitting by the corner, usually also covering her face with her hair (by looking down most of the time) — at least that's what I've heard. We weren't really classmates at that time.
Everyone called her a "Walking Stick/Pencil" (her surname meant "Pencil" in my language) and no one really... gave her attention in a good way.
Fast forward to ninth grade, we were classmates. Of course, it was a different time then. Sure, there were bullies, but people have matured, at least some. It was by luck that she was assigned in our class.
Everyone tolerated her behavior since she wasn't doing anything wrong, really.
The only annoying part was that she was literally useless in presentations, group activities, etc.
Everyone was patient with her. Many of my classmates (who can actually think) defended her for having social anxiety — which, true, was acceptable.
Until tenth grade happened.
She always stared off somewhere. And we thought, oh, maybe she's just, you know, being her?
Well, not really the case. Days passed and she began looking at other people intently. She stared at me often - that's not me assuming, because everyone could tell. Most people thought she was into my boyfriend — which I would not be surprised with, considering how she was always beside him in group activites and stuff (I don't blame her, he was kind of gentler compared to other boys, but he was irritated, he openly told me).
One day, while I entered the comfort room, the girls of our class started gossiping. They called me to talk with them.
"Hey, d'you know what <Name> did earlier? God, it was so freaky!"
I was confused. The three girls I was talking to were nice, and they were actually one of the few people who were sticking up to her.
I wondered what she did that made them so pissed off. I asked why, and they told me what she was doing.
She took photos of them.
There was a school festival, so of course we weren't in our rooms, and they said she just randomly - trying so hard to be secretively taking pictures of them.
One of them made an excuse, as they told me, that they were going to drink from the fountain. She checked her phone on the way, and she saw multiple photos of other people in her gallery. Most of the class included, and no, not class pictures. Random, stolen photos.
She was sending these photos to a group chat (I think it was named "My Buddies" or whatever) claiming everyone was her friend.
It was weird as hell. This news obviously spread like virus in the entire tenth grade. I think it was only her who never heard of it.
Anyway, suddenly, one day, she started spamming in group chats (usually our class') and she was actually being noisy.
She trash-talked teachers, students, acted like she was a boss. She suddenly was acting like she's a new person. In fact, she was trying so hard to the point that even the last person who defended her social anxiety issues since they were like - 5th grade - gave up on her.
One of my closest friends, who she was actually talking to before all this matter, got so pissed off at her because she was talking shit of everyone and bossing us around.
She was a quiet, shy girl since elementary, that's for sure. One day, she became this loud-mouthed, obnoxious creep who took photos of everyone, secretly listened to conversations, became rude in all her glory — it was like a different person.
It puzzles everyone how she's like that online, and in real life, she acts like nothing happened. She isn't so "gloomy" anymore, last time we knew of, but since it's quarantine and all that, now she's being a jerk to everyone again.
Some students manned up and asked her family about her. It got so worse to the point that teachers kicked her out of the group chats and reported her (since technically school year isn't over yet) because of her attitude.
It's not a big mystery on the outside, but if you think of it, this girl has been silent as fuck for YEARS, and now she's making a ruckus.
At first we were happy she was now communicating, but it got worse, and worse, and worse.
In the first place, no one knew why she became like this.
We all wondered why.