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Entangled

Summary:

A potion explosion. One furious Slytherin. One reckless Gryffindor. Several increasingly questionable life choices.

Chapter Text

That cursed Tuesday, 13 September 1977, was the day Narcissa Black lost the last fragile hope of ever achieving her dream.

Her long, pale fingers gripped the edge of the marble sink so tightly that her knuckles blanched white. Tears streamed down her cheeks, blurring her vision. In the corner of the girls' lavatory, Moaning Myrtle hovered nearby, watching with undisguised curiosity, but Narcissa paid her no attention.

Inside the basin, slowly dissolving beneath the steady drip of a tap, lay the letter from the Malfoys.

It was not the betrothal itself that had broken her.

Narcissa had never objected to marrying Lucius Malfoy. He was, by every measure that mattered in pure-blood society, a perfect match: heir to one of the wealthiest and most respected families in Britain, intelligent, accomplished, and destined for influence. She had always known what was expected of her. One day, she would become Lady Malfoy.

She had accepted that long ago.

All she had asked for was one year.

Not three. Not two.

One.

One year to train as a Healer at St. Mungo's. One year to discover whether the dream she had carried since childhood could survive beyond the pages of textbooks and late-night fantasies. One year to be something other than a daughter, a future wife, or a carefully arranged alliance.

Just twelve months to belong to herself.

The Blacks had refused.

The Malfoys had refused.

Both families considered employment beneath people of their standing.

Lucius's parents had been horrified by the suggestion. The very idea of their future daughter-in-law working in a hospital had struck them as faintly scandalous. They wanted the marriage arranged immediately and an heir to follow as soon as possible, particularly since Lucius was already five years older than she was.

Her own mother had been no kinder. Druella's letter had dismissed the idea outright, describing Narcissa's ambitions as a childish fixation that ought to have been abandoned years ago.

To them, her dream was not a noble pursuit. It was an embarrassment. An impropriety. A symptom of madness.

So, Narcissa buried it.

She splashed freezing water onto her face, inhaling a sharp, jagged breath as she forced herself to look at her reflection. The girl staring back had swollen, reddened eyes and trembling lips—a stark vulnerability she could not afford. Drawing her wand, she cast a flawless glamour. The magic hummed beneath her skin, seamlessly erasing the evidence of her breakdown.

She smoothed her robes with meticulous care and pinned back her sleek, blonde hair until her hands finally stopped shaking.

When she stepped out of the lavatory and back into the dungeons, she was once again the Ice Queen of Slytherin.

Composed. Untouchable. Perfect.

 

*

 

 

She walked calmly toward the dungeons for double Potions with the Gryffindors. Truly, she thought, a bitter, hollow ache settling in her chest, the day could hardly get worse.

The moment she crossed the threshold into the damp chill of the classroom, Violetta Travers and Elvira Montclair waved her over. Narcissa slipped gracefully into the saved chair beside them, every movement fluid, elegant, and perfectly practiced—the flawless product of a lifetime of pureblood etiquette.

Across the room sat the Marauders.

Sirius Black’s barking laughter cut through the chatter of the room, immediately drawing Narcissa's eye despite her best efforts. He was throwing his head back, joking with Lupin and Pettigrew, while James Potter—much to Narcissa’s enduring horror—leaned far too confidently into Lily Evans’s personal space. The fact that the arrogant idiot had somehow been named Head Boy remained one of Hogwarts’ greatest, most insulting mysteries.

Narcissa let her gaze linger just long enough to telegraph her faint disdain before looking away.

She barely registered Professor Slughorn’s grand entrance, only tuning in when the Potions Master cleared his throat at the front of the class.

“Today,” Slughorn announced, clapping his plump hands together, “we will be brewing the Draught of Peace. While relatively straightforward for a NEWT-level potion, it requires exceptional precision. One misplaced ingredient, and the potion may induce a comatose sleep instead of serenity—or worse, a state of intense, agonizing anxiety in the drinker.”

Narcissa tuned out the rest of his lecture.

She had always been excellent at Potions. She had needed to be. Acceptance into St. Mungo’s healer training demanded outstanding grades, and Narcissa had worked relentlessly for hers. She had spent hours memorizing ingredients, mastering brewing techniques, and even paying Severus Snape to tutor her privately.

But now?

Now that her dream had been reduced to ash, she found she no longer cared.

A sharp nudge to her elbow pulled her from the dark spiral of her thoughts. Narcissa turned with a faint frown, only for Violet and Elvira to gesture frantically toward the opposite side of the classroom.

"But Professor—" James Potter’s voice rang out, laced with desperate protest.

Slughorn barely glanced up from his parchment. “Mr. Potter, I assure you that you will survive partnering with Miss Black for a single lesson.”

The classroom erupted into immediate interest.

James looked personally offended.

Then he glanced at Narcissa.

Narcissa responded by raising one elegant eyebrow before pointedly returning her attention to her textbook.

Around the room, Slughorn continued assigning pairs. To everyone's collective horror, he had apparently decided that the best way to encourage inter-house cooperation was to force every Slytherin to work with a Gryffindor.

Violet let out a heavy, dramatic sigh as she was partnered with Sirius Black. Meanwhile, Elvira nodded in quiet satisfaction when Slughorn paired her with Remus Lupin—who was, by all accounts, one of the few calm Gryffindors with an actual brain.

Narcissa rose from her chair. Without a word, she crossed the room and claimed the nearest empty workstation. James, who had already selected a table near the back, stared at her.

"I was sitting over there," he said, gesturing vaguely toward the back.

Narcissa opened her textbook, the crisp turn of the parchment the only sound between them.

"Black."

No response.

"Black."

Nothing.

"BLACK."

At last, Narcissa looked up.

"What?"

"That's my workstation."

"No," Narcissa replied, her voice smooth and dangerously calm. "It is a workstation."

James opened his mouth, looking entirely ready to launch into a full Gryffindor tirade.

Then, he actually looked at her face.

He paused, reconsidering. For reasons he couldn't quite put his finger on, Narcissa Black didn't look like a smug Slytherin trying to annoy him. She looked less like a schoolgirl and more like someone who had recently buried a body and was currently looking for a place to hide the shovel.

With a muttered curse, James abandoned his original table, snatched up his textbook, and dropped heavily into the seat beside her.

"Fucking brilliant," he muttered to his textbook.

"I require minimal communication," Narcissa informed him immediately, her eyes never leaving her scales as she precisely measured out powdered moonstone.

James closed his eyes, inhaling the damp scent of the dungeon. Of course she did.

"Do not hover near me."

"Fine."

"Do not breathe near me."

James opened one eye, levelling a deadpan stare. "I actually need that one to live."

"Do not do anything irritating."

"No promises."

"In fact," Narcissa continued, her voice clipping each word with surgical precision, "it would be best if you contributed absolutely nothing."

James blinked. "Why am I even here?"

"An excellent question."

For several minutes, they worked in a suffocating, tense silence. Or rather, Narcissa worked. James was effectively reduced to the role of decorative classroom furniture.

Every time his hand drifted toward an ingredient, she snatched it first. Every time he attempted to assist, she was already finished. At one point, he spent nearly thirty seconds holding a stir-rod with agonizing awkwardness before realizing she had completed three separate brewing stages without so much as acknowledging his existence.

"This is ridiculous," he finally snapped.

No response.

“Black,” he tried again, leaning back in his chair. “Let me do something. This is supposed to be a group assignment.”

“No. And I don’t care,” she answered coldly, her gaze fixed entirely on her simmering cauldron.

“You won’t get an Outstanding if you ditch the teamwork. Slughorn will dock your marks just for the atrocious attitude.”

“Do I look like I give a flying fuck about a mark, Potter?”

James blinked, completely thrown off his axis. In all his seven years at Hogwarts, he had never heard a single vulgarity slip past the pristine, carefully manicured lips of Narcissa Black.

“Whoa,” he muttered, holding up his hands. “Who got your knickers in a twist?”

No response.

James narrowed his eyes, studying her profile. He was finally beginning to understand why the rest of the school found her so utterly terrifying. It wasn't because she looked dangerous. It was because prolonged exposure to her icy silence made a person actively consider committing crimes just to break it.

“You’re cutting those fluxweed roots too thick,” James noted, leaning over her shoulder to inspect her cutting board.

Narcissa's silver knife froze mid-air.

Slowly, she turned her head. Their eyes met.

James immediately regretted opening his mouth. The look in her pale blue eyes suggested she was mentally calculating the exact amount of prison time she would receive if she gutted him right here in front of Slughorn.

The knife resumed moving. The silver blade flashed dangerously close to her slender fingers.

Once.

Twice.

Three times.

James winced, shifting back slightly. "Careful—"

THWACK.

The heavy silver knife embedded itself several inches deep into the solid oak cutting board. The entire workstation rattled. Several nearby students jumped, a handful of lacewing flies scattering across their table.

James stared at the quivering handle of the knife. Narcissa stared back at him, her chest rising and falling in a shallow, unsteady rhythm.

"Right," James said softly. "Right."

A sensible person would have stopped talking.

James Potter had many admirable qualities.

Good judgment was not one of them.

"Who died?"

The question slipped out before his internal filter could stop it.

For a fraction of a second, the mask cracked. Something raw and violently painful flickered across Narcissa's face. Real, agonizing grief.

Then, the ice slammed back down, shutting him out completely.

"Potter."

"Just asking."

"Do not."

"Fine."

Three seconds passed.

"Was it a relative?"

"Potter."

"A friend?"

"Potter."

"A cherished owl? A prize-winning garden gnome?"

Narcissa closed her eyes, her jaw clenching so tightly a small muscle feathered in her cheek.

James brightened, a spark of genuine curiosity lighting up his hazel eyes. "Ah. So something did happen."

"Leave me alone."

"No."

"Why?"

James considered this for a beat, looking at the knife still stuck in the wood, and then at the rigid line of her shoulders. He shrugged.

"Bored."

“Potter. I am warning you—”

James reached out, his fingers brushing past the standardized equipment until they snagged the nearest ingredient in the prep basket. It happened to be a moon-fuzzed, silver-leafed flower. He had absolutely no idea what it was, what it did, or why it was on their desk.

Naturally, he immediately began plucking its petals.

"Or what?" he asked lazily.

One silver petal bounced harmlessly off Narcissa's rigid shoulder. Another fluttered through the air, landing perfectly in her immaculate, pinned-back blonde hair. A third drifted directly into the simmering cauldron.

The potion hissed softly, a tiny puff of violet steam rising from the surface.

Neither of them noticed.

"Potter," Narcissa warned, her voice dropping a dangerous octave.

James plucked another petal, tossing it like a piece of Muggle confetti. The liquid in the cauldron darkened from a pale, luminous silver to a murky navy.

Across the room, Remus Lupin paused mid-stir, his brow furrowing as he looked over at their workstation. "Is... is their potion supposed to be doing that?"

Sirius leaned around Remus to get a better look. "No. Definitely not."

James flicked another petal. This one struck Narcissa squarely between her perfectly manicured eyebrows. Another missed her entirely, floating directly into the cauldron.

The potion flashed a violent, neon pink. Then a vivid, warning orange. Then a deeply concerning, angry shade of blood red.

"Potter," Narcissa hissed through clenched teeth, her hands curling into tight fists at her sides.

"Hey, you're the one who said you didn't give a flying fuck about a mark," James pointed out, entirely amused by his own recklessness.

"I care about not being blown to smithereens."

"Look at that—progress."

The cauldron emitted a low, ominous, mechanical-sounding bubbling noise, like a kettle about to burst. Several nearby students took a synchronized step backward, clutching their textbooks to their chests.

"Should we... maybe tell them?" Peter Pettigrew asked, nervously eyeing the rising heat ripples.

"Absolutely not," Sirius said, crossing his arms and leaning back against his desk.

"Why not?"

Sirius watched as James lazily launched yet another silver petal. "Pure scientific curiosity, Peter. I want to see how high the roof goes."

The potion started smoking. Thick, acrid grey tendrils began to spill over the lip of the pewter cauldron.

At the front of the room, Professor Slughorn finally looked up from his ledgers, his round face draining of colour. "Oh dear."

The bubbling became a violent, spitting roar.

"Oh dear me."

The smoke turned a pitch-black, suffocating hue.

"OHHH DEAR!"

"Stop throwing things into the cauldron!" Narcissa snapped, her icy composure fracturing completely as she finally looked at the disaster brewing between them.

"You literally said you didn't care!" James yelled back over the mounting roar of the potion.

"I CARE NOW, YOU ARROGANT ASS!"

A loose petal, dislodged by the sheer vibration of the desk, drifted off the wood and fell into the liquid.

The potion made a horrific, screeching noise usually associated with a dying banshee or imminent, catastrophic explosion.

The entire classroom fell into a dead, terrified silence. Everyone stared. Everyone was frozen in absolute panic—except James and Narcissa, who remained locked in a furious, unwavering staring contest.

"Potter," Narcissa said, her voice dropping into a register that could freeze lava. “I have had a monumentally dreadful day. And you have been testing my absolute limits since the exact moment I crossed the threshold of this room.”

James crossed his arms, leaning into her space, entirely refusing to be intimidated. "Like you haven't been testing mine? You've been acting like a bloody tyrant!"

"Mr. Potter!" Slughorn bellowed, scrambling backward and knocking over his golden goblet.

James completely ignored him.

"Miss Black!" Slughorn screamed.

Narcissa didn't even blink.

"PLEASE STOP FEUDING FOR THIRTY SECONDS AND STEP AWAY FROM THE CAULDRON!"

Neither listened.

The cauldron was vibrating so violently now that it was practically dancing on the iron tripod. The heavy oak desk shook. The black smoke thickened, billowing toward the enchanted ceiling. Realizing salvation was not coming from the students, several Slytherins and Gryffindors alike abandoned all pretence of house pride and scrambled in tandem to hide behind the safety of the reinforced stone pillars.

Then, the last fragile thread of Narcissa’s control snapped.

In one swift, lethal motion, she whipped her wand out from her sleeve. A vicious, blinding streak of violet light shot across the desk and struck James squarely in the foot.

James hissed, a sharp gasp of pain cutting off his breath as his leg instantly buckled. He lunged sideways, his hand desperately clawing for the edge of the workstation to keep from collapsing. But the heavy oak desk was already tilting, shuddering under the weight of the unstable, violent magic of their ruined potion.

Sensing the table giving way beneath him, James instinctively reached out and grabbed the nearest solid object within his radius: Narcissa Black.

Narcissa’s eyes widened in pure, aristocratic outrage as his calloused fingers clamped tightly onto her upper arm. Reeling backward from the sheer audacity of his touch, she lifted her wand a second time, her magic flaring, fully prepared to hex him directly into the hospital wing—

Then, the cauldron detonated.

A deafening, concussive boom tore through the dungeon, rattling the foundations of the castle.

The pewter ruptured like paper, unleashing a torrential wave of boiling, crimson liquid. Because the rest of the class had already fled to the perimeter of the room, the scalding deluge drenched only James and Narcissa.

The sheer force of the blast sent them both flying. Narcissa lost her footing instantly on the slick, potion-soaked stone floor. James—still gripping her arm like a lifeline—was violently dragged down with her.

The back of Narcissa's head struck the stone floor with a sickening crack, making her vision instantly flash a blinding, static white.

A fraction of a second later, James crashed directly on top of her with a heavy, breathless thud. The full, dead weight of him drove the remaining air completely from her lungs.

Around them, the classroom dissolved into a blurred cacophony of chaos—screaming voices, thick smoke curling through the air, Slughorn bellowing frantic counter-spells—but the sounds were already growing distant, muffled as if underwater.

Narcissa stared blankly up at the vaulted ceiling, the agonizing heat of the potion and the crushing weight of James Potter fading into nothing.

Then, the darkness claimed her.

 

*

 

When Narcissa finally forced her eyes open, the damp gloom of the dungeons had been replaced by the sterile, blinding brightness of the hospital wing. Sunlight stabbed mercilessly at her retinas, and a relentless, agonizing pulse throbbed behind her temples with the force of a swinging blacksmith’s hammer.

Memory rushed back over her in a suffocating wave: The letter from the Malfoys. Her ruined dream. The silver petals. The explosion.

Narcissa immediately closed her eyes and wished to slide right back into unconsciousness.

"Ah, good. You're awake."

Madam Pomfrey’s face swam into view beside her cot. The Matron looked relieved, utterly exhausted, and deeply, profoundly annoyed—an expression Narcissa had seen on many professors' faces over the years, usually within a ten-foot radius of James Potter.

"No signs of lasting magical impairment," Pomfrey said briskly, running her wand through a final, diagnostic sweep that hummed with a soft gold light. She paused, tilting her head. "Well. No new magical impairment, at any rate."

A muffled snort echoed from somewhere to her right.

Narcissa turned her pounding head toward the sound. James Potter occupied the very next bed. Of course he did. Because, apparently, the universe was not entirely finished punishing her today.

"Good to know," James muttered, leaning back against his propped-up pillows.

"You were unconscious for approximately thirty minutes, Mr. Potter," Pomfrey informed him, her tone clipped. Then, she turned her sharp gaze back to Narcissa. "Miss Black was out for forty-five."

James’s brow furrowed, his gaze drifting over to Narcissa's bed. Narcissa hated that he frowned; it implied a level of concern he had absolutely no right to feel.

"What?" Narcissa demanded, her voice a little rougher than she intended.

Pomfrey adjusted a row of amber potion bottles on the bedside locker. "Your head struck the stone floor with considerable force, Miss Black. You took the brunt of his fall."

A heavy, uncomfortable silence settled over the small space between their beds. James shifted uncomfortably, avoiding her gaze. Narcissa’s instincts flared with immediate suspicion.

"Why are you making that face, Potter?"

"What face?"

"That face. The one currently occupying the front of your head."

"I don't have a face."

"You are actively using one."

Madam Pomfrey let out a long, weary sigh. It had been less than two minutes since they both regained consciousness, and she already looked like she was seriously considering taking an extended sabbatical from Britain.

"Potter," Narcissa said coldly.

"What?"

"Wipe that guilty expression off your features. It doesn't suit you."

"I don't feel guilty."

"You look guilty."

"I look handsome."

"You look concussed."

"That's because I am concussed."

"Good. It is an improvement."

James stared at her, a muscle twitching in his jaw. Narcissa stared back, her icy blue eyes absolutely refusing to yield an inch.

"Right," James said eventually, breaking the tension with a wry, tired half-smile. "Nice to see the explosion didn't damage your legendary charm."

"Disappointed?"

"Furious."

"Shame."

Before the bickering could escalate into another incident, James glanced past Narcissa toward the Matron. "Did anyone else get hurt, Madam Pomfrey?"

"No," the answer came immediately. "The rest of the class had the good sense to move away from your workstation before the detonation."

James visibly relaxed, his shoulders dropping as a wave of genuine relief washed over his face.

Narcissa rolled her eyes, a sharp pang of bitterness twisting her stomach. Naturally. Trust Potter to accidentally trigger a localized catastrophe, ruin a perfectly good cauldron, and then seamlessly transition into worrying about the collective well-being of the student body. It was nauseatingly Gryffindor.

Refusing to spend another second playing the part of an invalid next to him, Narcissa abruptly swung her legs over the edge of the cot and pushed herself upright.

“Miss Black, you are to stay in that bed—” Pomfrey began, her voice rising in warning.

Narcissa ignored her completely. Despite the fierce, violent pounding in her skull and a wave of sudden dizziness, she smoothed out the wrinkles in her school robes with rigid, military precision. With practiced, elegant movements, she quickly tucked her dishevelled blonde hair back into its pins, forcing her hands to remain steady.

“Thank you for your swift assistance, Madam Pomfrey,” she said, her voice smooth, regal, and entirely detached as she stepped off the bed. “But as you can see, I am perfectly fine now.”

“You most certainly are not—”

Without waiting for the Matron's approval, and without casting a single glance back at James Potter, she marched toward the Hospital Wing doors. Her chin remained high as she took one step. Then another. Then a third.

Behind her, Madam Pomfrey sounded increasingly alarmed. “No, no, you cannot leave yet. I still need to observe—”

A strange, violent sensation suddenly tugged at the hollow of Narcissa's stomach.

She faltered, a faint frown twisting her lips. It felt oddly, unsettlingly similar to the jerk of a Portkey—or perhaps a cruel fishhook lodged somewhere deep behind her ribs, pulling tight. It was deeply unpleasant.

She forced herself to take another step forward.

The sensation intensified, turning into a fierce, localized gravity.

Behind her, the springs of the hospital bed groaned loudly as James abruptly sat upright. "...What the hell?"

Narcissa ignored him. She had spent seven long years successfully ignoring James Potter. She saw absolutely no reason to break her record now.

Another step. The invisible tug became a violent strain.

"Black." His voice had lost its usual edge.

She kept walking.

"Narcissa."

That stopped her.

Not because she wanted it to. Because in seven years, James Potter had never once called her by her first name. The sheer unexpectedness of it stole half a second of her attention. Unfortunately, half a second was more than enough.

"BLACK!"

The invisible tether snapped taut.

Narcissa barely had time to register the shift before she was violently, mercilessly yanked backward. There was no dignity in it. No elegance. No pureblood grace. One fraction of a second she was walking forward; the next, her feet left the ground entirely, and she was airborne.

At exactly the same moment, James Potter was launched out of his hospital bed like a loose projectile, ripped forward by the exact same unseen force.

"WHAT THE HELL—" James yelled.

"POTTER, WHY ARE YOU—"

They met in the dead centre of the hospital ward with a bone-rattling, catastrophic CRASH.

The mid-air collision drove every single ounce of oxygen from Narcissa's lungs. The sheer velocity of the impact spun them sideways, sending them crashing into the stone floor in a chaotic heap of tangled limbs and flying fabric.

An elbow found James's ribs. A sharp knee struck Narcissa's shin. Someone's wire-rimmed glasses went skittering across the flagstones. For a terrifying, disorienting moment, neither of them could tell where their own body ended and the other person began.

"GET OFF ME!" Narcissa shrieked. The Ice Queen facade didn't just crack—it shattered entirely, her voice pitched in raw, furious panic as she violently shoved at James's chest to clear him away from her.

From the far end of the ward, the sharp, echoing clack of a clipboard clattering against the stone floor cut through the silence.

Madam Pomfrey stood frozen by her potion cabinet. Her eyes were rounded into dinner plates, her face draining of every single drop of colour as she stared at the two groaning students tangled on the floor

"Oh dear," the Matron whispered. "Oh, dear me..."