A transfer student arrives at Hogwarts without warning.
Her name is Aurelia. Long black hair, gray eyes with no warmth in them, and an aura that feels just a little wrong. The shadows around her move on their own. The air near her drops a few degrees. Students and teachers alike feel their bodies stiffen when she walks by.
One person noticed her from the very first moment—Potions Master Severus Snape. Known for his cold stare and cutting words, he begins observing Aurelia in secret, asking him
Obscurus - Ancient books in the library — One who lights a fire in a dying flame
The morning after her suspension ended began with the cold of stone steps.
Climbing from the dungeons to the Great Hall, the smell of breakfast drifted from deeper in the corridor. Scrambled eggs and crispy bacon. Hogwarts mornings always smelled like that. Aurelia felt that scent as something distant, walking through the sparsely populated hallway.
(Don't move emotions. That's all that matters.)
It was her first week back in the classroom wing. That night's study, those words, the sound of that door closing—she'd folded it all small and pushed it into the corner of her consciousness. Don't open it. Don't touch it. If she did that, the Obscurus would stay quiet today, tomorrow, always.
The Potions classroom was still in the depths of the dungeon corridors. The stains on the stone walls, the specimen jars lined up on shelves—nothing had changed. Only she had changed, Aurelia thought. Or rather—eroded might be more accurate.
When she sat down, the students next to her shifted their bodies slightly. They were good at pretending not to notice, Aurelia observed distantly.
Snape took his place at the front.
Black hair reaching his shoulders, with faint red tones mixed into the ends. Hard to notice in the dim classroom, but definitely there. Sharp dark green eyes swept slowly across the room, passing over Aurelia's seat just once. Not stopping for even a second.
"[serious]Today we'll perform the stabilization treatment of Wiretap Weed. Follow the steps on the blackboard. I'm not taking questions."
Class began.
Aurelia followed the instructions precisely. Cut the Wiretap Weed stem to three centimeters, boil in distilled water for two minutes. Add stabilizer one drop at a time while stirring with a wooden rod. No emotion needed in the movements. Just precise. Mechanical. That was all.
Then came a small sound from the next seat.
After a strange *pop*, purple smoke began to rise gently. The boy next to her panicked and tried to put a lid on the cauldron, but it was too late. Bubbles floated upward toward the ceiling, and each time one burst, a strange sweet-sour smell drifted through the air.
Snape walked over in silence.
"[cold]Seven points deducted. Adding moonflower juice to Wiretap Weed causes foaming—didn't I teach that last year, you fool?"
The boy hung his head, nearly pressing his forehead to the desk. A purple bubble popped above his head with a soft *pop*.
Aurelia kept facing forward, feeling only her eyes narrow slightly.
(What an odd person.)
That was all. She hadn't laughed. Just for an instant—something had moved. Beneath the lid of her emotions, something had shifted, barely perceptibly.
She closed the lid again immediately.
Class continued. Aurelia's cauldron maintained its perfect transparent color, unchanged until the end.
---
The library in the afternoon was slanted with the light of evening through the windows.
Aurelia made her way toward the restricted section. Madam Pince—the elderly librarian, stricter about book handling than any teacher—glanced at her while checking her ledger but said nothing.
She was searching for records about Obscurials. She wanted to understand herself. If there was a way to control it, she had to find it herself. Relying on Dumbledore felt—wrong somehow. She didn't think that man would tell her everything.
She checked the shelves one row at a time. *Magical Constitution Abnormalities*—checked out. *Classification of Rare Magical Power*—entire pages torn out. *Case Studies in Magical Suppression of the Mind*—only the spine remained, the contents gone.
(None of them are here.)
Aurelia frowned slightly as she returned a book to the shelf. It might not be coincidence. Someone at this school might be suppressing the same information first. Or perhaps it had always been this way. She didn't know.
Expressionless, she searched another shelf.
Then a chair scraped—and someone sat beside her.
Aurelia didn't look up. It was normal for people to be in the library. No need to pay attention. She continued turning pages without stopping, when something slid across the desk toward her.
A book.
An old one with a blackened leather cover. The title was embossed in fading gold leaf, but still readable—*Obscurials: Seven Case Observations from 19th Century Europe*.
Her hand stopped.
She slowly looked up.
The student sitting beside her was unfamiliar. Or rather—she thought she'd seen them once from a distance in a corridor. Ravenclaw tie. Short silver-white hair with only the bangs flowing slightly, a frame of about 185 centimeters fitting naturally into the chair. A thin scar beneath the right eye. And most notably—eyes of different colors. One a clear blue, the other a calm gray. Both looking at her with the same temperature.
Not expressionless so much as—deliberately stripped of emotion, a kind of quiet.
"[serious]A record of Obscurials. I know what you are."
The voice was low and flat. Almost no inflection.
Aurelia felt something respond inside her. Deep in her chest, in the part she'd been pushing down—something twitched. No, she shouldn't let it move. She shouldn't show emotion.
"[cold]...Who are you?"
The words came out quietly. She thought she'd controlled it well.
"[serious]Lucas Dreiver. Ravenclaw, seventh year."
He only introduced himself, offering no further explanation. He tapped the old book's cover lightly with his fingertip, then withdrew his hand.
Aurelia started to stand. Accepting one book didn't mean she was admitting anything. But she needed to confirm the source of this information. Who was this man, and why did he know about her—
"[serious]You can run if you want, but take that book with you. As things are now, it's only a matter of time."
Her body froze.
*As things are now.* Those words fit like a key into her chest.
Aurelia slowly sat back down.
---
Before speaking, Lucas checked the back of the library once. The other students were in distant sections. Madam Pince was checking her ledger behind the counter.
"[serious]My sister died as an Obscurial when she was twelve."
His voice was matter-of-fact. Not suppressing emotion, but rather—the way someone speaks after spending a long time drawing a line between emotion and fact.
"For the last six months, my sister tried to kill her emotions. No anger, no sadness, no laughter. She thought that would quiet the power. I didn't stop her back then."
Aurelia listened in silence.
"Later I read papers. Medical magic journals—not in Hogwarts' library, but records published as annual reports by the Ministry of Magic's Department of Mysteries. It was written there. Obscurials grow through suppression. Killing emotions makes them seem quiet temporarily, but that's just putting a lid on pressure. The contents keep growing."
Lucas's blue and gray eyes looked at her quietly. Not sympathy. Not calculation. Just eyes meant to convey fact.
"[serious]Don't kill your emotions. That's the most dangerous thing. Obscurials feed on suppression. Don't fear feeling."
Aurelia didn't move.
(I know that.)
She almost thought it. But—did she really know? For a week, she'd been crushing emotions one by one. Since fleeing Durmstrang, she'd always done that. She'd thought it was right. That it was the only way.
"I've been watching you since the day after the explosion incident. The way shadows move when you walk the corridors—it was the same as my sister's."
(I was being watched.)
That fact left a strange sensation. Not anger. Not fear. Just the awareness that someone had been watching her for longer than she'd realized—a feeling she couldn't quite name.
There was a thin shadow in the depths of Lucas's eyes. The remnant of his feelings for his sister, a quiet sorrow. He didn't show it, but he didn't hide it either. It was simply there.
It was different from what she'd felt in Snape's study. That had been something warmer—something she couldn't even sort out herself. But this was the quiet of someone who knew the same weight of pain.
Aurelia didn't know what either of them was. Not knowing made it harder to organize her thoughts.
---
"[serious]Well, look at this next."
Lucas placed a thin folder on the desk.
Aurelia reached out and opened it.
Inside were two documents.
The first was a library access log—output from the magical automatic recording device that Madam Pince maintained, printing dates, times, names of viewers, and titles of borrowed books. In the entry for the day before the practical, there was a name.
Lynnea Vaara. Books accessed: *Forbidden Substances Preparation Characteristics and Chemical Reaction Patterns—Overview of Third-Class Designated Materials*.
Aurelia's eyes stopped on that line.
The second was a handwritten memo. In an upper student's handwriting, brief—*Saw Lynnea Vaara in the Slytherin corridor on the second night of suspension. After curfew.* The name and signature of the upper student who witnessed it.
"[serious]Library records are valid as magical evidence in Ministry hearings. I confirmed the witness statement with the person themselves. Whether you use this is up to you. But don't let yourself be destroyed in silence."
Aurelia didn't look up from the documents.
(Don't let yourself be destroyed in silence.)
Those words echoed through her mind like sound in a stone corridor.
She'd been silent at Durmstrang too. Because she couldn't prove it. Because no one would believe her. Because there was no evidence. She'd done the same thing here since arriving. Just kept being destroyed. She'd accepted it as natural.
She closed the folder and held it firmly to her chest.
In the depths of her chest, in the place that had been fading—something moved, barely perceptibly.
Like the red embers left when a flame dies out. It was still there. It hadn't gone out.
"[serious]The old book can be checked out for a week. Return is optional."
Lucas stood quietly. No words of parting. He simply left what was necessary and walked away. His footsteps faded into the back of the library.
Watching his back, Aurelia thought—this person has no unnecessary words at all. That made each word he spoke carry more weight.
---
At the same time, in the underground study.
Snape sat at his desk, opening a drawer. Opening it, closing it. Opening it, closing it.
Inside was a single old photograph—a red-haired woman with green eyes. Lily Evans. It had been in that drawer for years. He'd stopped counting how many times he'd done this.
The fireplace in the study had no fire. October in the dungeons was cold. Stone walls held the chill. But he couldn't bring himself to light it. A stack of half-graded parchments sat in the corner of the desk. They hadn't moved in three days.
That night wouldn't leave him.
The figure standing before the study door. Bowing to leave, and then—just for a moment—something that traced down her cheek.
He'd done it again. Pushed away what he should have held close. Thought he could avoid harm by shutting himself in solitude.
(How foolish I am.)
He thought it only in his mind.
When he tried to close the drawer, he noticed another paper wedged with the photograph.
A scrap of a preparation memo. From last week's Potions practical, used by a student. Small, careful handwriting noting temperature management values for Wiretap Weed.
He recognized it as Aurelia's handwriting. From the practical. Somehow it had ended up here. He hadn't noticed. He'd missed it.
Snape looked at the memo for three seconds. Then he returned it to the drawer and closed it quietly.
To say he wasn't thinking would be a lie. But when he tried to put what he was thinking into words, it wouldn't form cleanly.
He stood.
He retrieved Aurelia's large cauldron from the storage shelf—confiscated during last week's practical incident. Dried residue of potion clung to the bottom. Precise residual magical analysis—a long and tedious task, but Snape didn't hesitate.
Two hours later, the results were ready.
The distribution of residue indicated externa