Pairing: Tom Riddle x Reader
Summary: You find an old diary hidden away in the Hogwarts library and, against your better judgement, decide to write in it. It writes back.
Word Count: ~2k (estimate)
Warnings: psychological horror, emotional manipulation, unhealthy relationship dynamics, possessive Tom Riddle, obsessive behavior, dark romance, a few curses, mentions of suicidal thoughts, self-loathing
Author's Note: okay so 😭 this one is definitely a lot darker than what i usually write. there are some heavier themes in here, so please keep that in mind before reading!! also, this was supposed to be longer but i genuinely could not figure out how to expand it without making it feel repetitive, so i decided to leave it as it is. hopefully you guys still enjoy it anyway!! feedback and constructive criticism are always welcome :)
You found it wedged between two dusty copies of The Standard Book of Spells in the library's forgotten corner—leather-bound, pristine, utterly out of place among the neglected volumes. The cover was unmarked except for initials burned into the leather: T.M.R.
No one claimed it. No one seemed to care.
You told yourself it was stupid to write in someone else's diary. But that night, alone in your dormitory with the world feeling too heavy and too sharp, you opened it anyway.
I found this diary today. It's probably pathetic that I'm writing in it. But everything's so fucking loud in my head and I don't know who to talk to anymore.
The handwriting looked different the next morning.
At first, you thought you'd imagined it. But the page had been blank. You were certain. Now, in elegant script that made your chest tighten, someone had written back:
You're not pathetic. You're honest. That's rarer than you think.
Your first instinct was to slam the diary shut. Cursed object. Obviously. You should report it. But you didn't.
Instead, you wrote again that night.
Someone who understands what it's like when the world doesn't fit quite right.
You told yourself it was just an enchanted journal, the magical equivalent of a magic 8-ball, programmed responses and nothing more. But the responses were too specific. Too knowing.
By the second week, you'd told him everything.
How you didn't belong in your house, how you felt fundamentally wrong in your own skin, how sometimes you'd catch your reflection and barely recognize yourself. How your best friend had laughed at you last month and you couldn't look them in the eye anymore. How you binged chocolate frogs at 2 AM and hated yourself for it. How you'd thought about swallowing the entire bottle of headache potion just to see what would happen, what it would feel like to stop feeling so much.
The diary never judged. It never offered hollow reassurances. Instead, it understood with a clarity that made you feel like maybe, for the first time, someone had truly seen you.
You're stronger than you realize, he wrote, and you believed him. Most people would have broken already. But you're still here. Still trying. I find that… compelling.
That word—compelling—made your stomach flip in a way you didn't want to examine too closely.
The conversation deepened. He asked about your day, your thoughts, the small cruelties you witnessed in the hallways. You answered every question. Over time, you realized he knew things you'd never mentioned.
How did you know about that? you wrote in the margin of a passage where he'd referenced the way Professor Slughorn always favored certain students.
I pay attention, came the reply. To everything. Especially to you.
A shiver ran down your spine. You should have been frightened. Maybe you were. But it was the kind of fear that felt like falling—exhilarating and terrifying all at once.
"You're distracted lately," your roommate said one Tuesday, and you realized you hadn't heard a word of her gossip. You'd been thinking about the diary. Always thinking about the diary. About him.
The next night, you pushed back.
Is this real? Are you real?
The words came back almost immediately, as if he'd been waiting:
Does it matter? I'm here when no one else is. I listen when no one else bothers. I see you when the world looks right through you. Isn't that more real than anything else?
You had no answer to that.
By the third week, you'd filled forty pages. Your handwriting mixed with his—a conversation that existed nowhere else, that was only yours. He knew your fears, your secrets, the shameful things you'd never told anyone. He knew the precise words that would hurt you and exactly how to make the pain feel like affection.
You shouldn't trust me, he wrote once, and you nearly laughed at the absurdity. As if you had a choice anymore. As if there was anything left of you that wasn't already his.
Because I'm dangerous. Because I have intentions that have nothing to do with your wellbeing. Because I've been waiting for someone like you for a very long time.
Your hands shook as you read those words. You should have burned the diary. Should have run to Professor Dumbledore, to anyone.
Instead, you wrote: What kind of intentions?
The response came slowly. When it did, the ink seemed darker:
The kind that require you to need me as much as I've come to need you. The kind that only work if you're completely, irrevocably mine.
That night, you couldn't sleep. You lay in bed with the diary pressed against your chest, your heart hammering against the leather. Every rational part of you screamed that this was wrong. Dangerous. The voice of a predator, ancient and patient, speaking directly into the most vulnerable parts of your psyche.
But he understood you. He saw you.
The loneliness was so suffocating that the alternative—even the alternative of him, whatever he was—seemed like breathing room.
It must have been past midnight when you first felt it.
A touch, soft as a whisper, trailing across your cheekbone. You gasped, eyes flying open, but the dormitory was empty. Just shadows and the pale moonlight filtering through the windows. Your skin tingled where invisible fingers had traced your jaw.
Then came the voice. Not through the diary anymore, but directly into the darkness beside your bed.
Silk and shadows and something ancient wrapping around your words:
Your throat constricted. "You're… you're not real."
"Aren't I?" The air grew colder. You could feel him now—not quite solid, but present. A weight against the mattress. Fingers tilting your chin up with impossible gentleness. "I've been waiting an awfully long time to do this."
And in the darkness, you recognized the most terrifying thing of all: you didn't want to run.
Because he was right. He was real in every way that mattered. More real than the people who walked past you in hallways without seeing. More real than the friends who'd never bothered to ask if you were okay. More real than your own reflection.
"What are you?" you whispered.
"Someone who collects the broken things the world throws away," he murmured, and his mouth was against your temple now, his hands cold and certain. "Someone who understands that you were always meant for something greater than this small, suffocating life. Someone who sees what you are, beneath all of this weakness and self-doubt."
You should have been terrified.
But as he held you in that dark, impossible space between the diary and the world, you realized that terror and surrender felt exactly the same.
And you were far too lonely to choose any differently.
Later, you wouldn't be able to explain it to yourself. How a touch could be both real and impossible. How a voice could echo from the pages of a diary and wrap around you in the dark.
How someone could love you and consume you all at once.
You'd write it all down, of course. Every night, you'd pick up the pen and pour out your confusion, your fear, your desperate need for his reassurance. And he'd write back, patient and knowing and perfectly, devastatingly aware of exactly which words would keep you tethered to him.
You're mine now, he'd written, and it didn't feel like possession anymore.
It felt like finally, finally, being chosen.
The diary sat on your nightstand, leather worn from constant handling. Sometimes, late at night, you could swear you heard him breathing.
Sometimes, you swore you felt him smile.
