A/n: I'm editing this story to fix some small continuity issues and such. You don't have to go back and re-read it, the changes are minimal. The biggest one so far is that the reader's raven is named Tokoyami instead of Notte. ^^

*

«You don't actually think Slytherin will fall so low, Portgas.» Cracker snickered, crossing his arms over his chest «Dancing to Muggle music? Who do you think we are?»

«Oh, come on, man!» Ace grinned from the huge portion of the dungeons cleared up to serve as dance floor «Let your people have some fun!»

«"Your" people?» Perona scoffed, raising her chin from her glass «We do not take orders from him, we do whatever we want!»

«And yet you're all gathered there like a flock.»

«Excuse me?!» Blue Gilly barked, starting a new banter.

It was true though.

Most of the people did show up at the party, but it looked like each House had taken over one side of the underground hall and they didn't really seem eager to mingle.

It was the kind of situation Luffy would have resolved easily, but the teen was currently too busy setting up decorations and food posts with the help of his gang, which meant that he was basically stealing a huge quantity of snacks and they were trying to restrain him.

«Sabo, pump the beat!» Ace called.

The blonde winked back and used his wand to operate the improvised DJ station. The music increased its rhythm.

Killer slid through his mates, who were still throwing insults back and forth with the Gryffindors, and reached his best friend at the closest table.

«Hey. Still gloomy?»

«I'm not gloomy!» Kid barked, refilling his glass with some weird cocktail.

«Yes you are! You've been in a bad mood since training.»

«Maybe it's because training sucked!»

«Or maybe it's because a certain troublemaker isn't giving you her full attention lately.»

«What?!» Kid snapped, slamming his glass on the table and pouring the concoction around.

«C'mon, why don't you just admit it!» Killer hissed, stepping closer to keep the conversation private «You could use this party as an excuse to–»

«Hey, Eustass.»

The two wizards stopped and turned to the girl who reached the table with a confident smirk on her painted lips. Her generous cleavage was exposed by her tight dress, and she was undoubtedly fluttering her eyelashes to the redhead.

Kid raised his non-existent eyebrows at their housemate.

«Carina. What do you want?»

«Oh, I would like a bit of fresh air, but this dungeons are so scary... I don't want to go alone~»

«Why don't you ask your friends to go with you then?» Kid grunted, twitching his mouth in annoyance.

«Because, well, I was hoping to enjoy one of these.»

She leaned forward and showed a couple of white cigarettes tucked into her belt with a conspiratorial smile.

«I, huh, borrowed the weed from the Herbology lab. We Muggleborn use it for fun, but I'm sure you know, you grew up among us after all.»

The guys' gaze fell on the joints and a small smirk tugged at Kid's lips.

«What the hell, why not?»

Carina chimed happily and turned to the gallery leading to the stairs.

«Kid, wait!» Killer grabbed the redhead's arm before he could follow her outside «Are you sure about this? Don't you want–»

«Cut it out, Killer!» Kid snapped, snatching his arm free.

Then a grimace curled his features and he glanced at the big entrance before looking back at his best friend.

«She's not even here.»

«She said she'd come. Honestly I'm even a bit concerned, she could end up in some kind of trouble, as always.»

«Yeah, or she could be sleeping. Either case, I don't care.» Kid scoffed, but he stopped one last time before following Carina out of the dungeons.

Kid pressed his lips together and talked fast, eyes on the floor.

«Y/n knew we'd be here, didn't she? But she's who-knows-where living her great adventures. Time we get our owns.»

Killer sighed, watching him walk through the lines of students just as Smoothie proudly declared that no Slytherin was going to set foot on the dance floor.

Just about a minute after Kid disappeared through the grey arch, the blonde blinked at your small figure finally emerging from the darkness.

«Perfect timing.» he grumbled to himself.

Your eyes met and he gave you a wave.

You easily spotted the Slytherin side. Most of your mates seemed too busy yelling at the Gryffindors, and Ace was dancing alone like an idiot in the middle of the dungeon for some reason, but at least Killer noticed you and you gratefully shuffled over.

He frowned when you reached him, eyeing the spider web stuck in your hair and the dust covering your clothes.

«Oi, Y/n. Didn't you cross Kid on your way here?»

«Kid? Hm, no, I'm pretty sure I came from the wrong side. We weren't supposed to take the East gallery, were we?»

He stretched his fingers to peel the web away from your locks and have a better look at it.

«No, we were not. Y/n, the East gallery is on the opposite side of the dungeons, literally across the castle.»

«Yeah...» you wiped off some dust from your sweater «The dungeons are some scary shit, ya know? I heard voices through the walls that wanted to kill me, and you remember the legend of Catarina Devon, the spectre that haunts beautiful girls? Well, it's not a legend.»

His blue eyes widened below his bangs.

«You met Catarina Devon?!»

«Yeah, she chased me for half of the castle with a scythe. And you know what she had the guts to say when she reached me? She said that I was not that beautiful after all, and then she left me alone!» you scoffed «Unbelievable!»

«Y/n! Finally!»

You turned to see Perona stomping over.

«Where the hell have you been? Ew! Why do you look so dirty?!»

«TROUBLEMAKER!»

Ace's loud voice startled both of you and you looked to the dance floor.

The raven's cheeks were flushed and his wide grin showed a shade of intoxication, but he didn't seem to care in the slightest as he flail his arms towards you.

Sabo changed the song in something you recognised from your childhood days in a Muggle school.

https://youtu.be/HyGZlXyAEu4

«Come dance, Troublemaker!» Ace yelled again, never stopping his moves «Whoever doesn't dance is a loser!! Are you a loser, Y/n?»

«HELL NO!» you blurted, tossing your dirty sweater to Perona and running to join the Gryffindor on the dance floor.

Perona tried to grasp your arm, but was thrown off by the sweater in her face.

«Wait, Y/n, we're not supposed to...!»

Killer placed a hand on her shoulder.

«Why are you even trying?»

She let out a tired sigh, her round eyes watching you start a silly dance with Portgas.

«I have no idea.»

Wandering through Hogwarts' dungeons and being chased by spectres gave you an adrenalin rush that countered your soreness, and dancing it out sounded like a good idea.

You barely noticed your Housemates' wide eyes when you left their ranks and joined Ace, and you didn't put much thought into it.

«Yeah, troublemaker, show me your moves!» Ace uttered, raising his index finger to the ceiling and moving his hips like an amateur John Travolta.

«They're sure better than yours, Portgas!» you retorted, spinning and clicking your fingers around.

Colourful lights started to flash around the cave, and you spotted the source on Ravenclaw corner: oddly enough, it was coming from Trafalgar's wand, but he looked to be begrudgingly forced to do so, judging by the enthusiastic Luffy hanging from the sleeve of his uniform.

«Oh yeah! We got a Gryffindor and a Slytherin leading the party now. No wonder those are the Houses that usually win the cup. Ravenclaw, Hufflepuff, where are you at?! Are you gonna take it?!»

Sabo's voice came distorted and amplified from the DJ station.

That guy surely knows how to stir some spirits.

«Yeah, come challenge me if you dare!» Ace shouted over the music.

«Oho, we have a Hufflepuff joining the dances!» Sabo's voice echoed again.

It was getting dark since the main lights were switched off and crazy glowing colours were swinging all around the hall, but you managed to distinguish the third figure on the dance floor.

«Kobyyyy!» Ace shouted in delight.

The pinkette looked a little embarrassed and his movements were stiff, but he didn't back down.

«For Hufflepuff!» he cried out.

You burst in laughter while Ace uttered another "yeah!!".

«Come on, Ravenclaw, will you be the only one left out?» Sabo called.

You closed your eyes and followed the music as crazily as possible, occasionally bumping into Ace or Koby.

«Woooh, what a twist! Ravenclaw joins in with TWO wizards now! Way to take the lead back!»

You squinted in the darkness to recognise the new faces and were surprised to see Penguin and Shachi sporting some legit moves.

«Yeah guys!»

Your gaze crossed Shachi's for a second and you blinked.

You hadn't seen the guy since the Duelling Club.

«OI!» you called over the music «No hard feelings?»

He looked at you, then a grin spread to his face and he nodded.

«No hard feelings!»

You smiled and offered your fist for him to bump.

Penguin seemed to approve, because his grin mirrored his friend's.

«EVERYBODY ON THE DANCE FLOOOOOR!!»

Luffy's sudden yell echoed super loud throughout the cave, and a second after a wave of cheering Gryffindors swallowed you all.

More and more students from other Houses began to join the dance as well.

You spotted Hermeppo hesitantly reaching Koby before other guys and girls from their House followed. Sai was a blushing mess while dancing with a Hufflepuff girl (her name was maybe Baby 5?). As for Ravenclaw, the women took the initiative, with Laki and Nojiko dragging their pals in the mess.

«Y/n!»

Someone grabbed your wrist and made you do a pirouette before you bumped into a solid chest.

You frowned and looked up.

«Sabo? Who's deejaying then?»

You glanced at the station to see Apoo playing the discs with his bare hands rather than his wand.

«I gave him his spot back.» Sabo smirked, leading the dance «He promised not to interpose the music with insults to you.»

You chuckled.

«That's very nice of him.»

«I agree. I'm glad you showed up.»

«Yeah, yeah. What do you want this time?»

«You think I wouldn't dance with you without an agenda? I'm hurt.»

He made you do another turn before placing his hands on your waist.

You giggled.

This was unexpectedly fun, but you still raised your eyebrow at him.

«Fine.» without losing his smile, he hinted towards Slytherin's side «Your mates are the only ones still on the defence.»

You followed his gaze and were met with a lot of cold glares.

Uh-oh.

«And what does it have to do with me?»

Sabo shrugged.

«I know you care too, otherwise you wouldn't be here.»

«You literally bribed my best friend to drag me at this party.»

«And yet you came separately.»

You looked up to flash your crooked smirk at him.

«Are you stalking me, Monkey D. Sabo?»

His smirk was just as cheeky.

«You wish. Now excuse me, before your redheaded bodyguard tries to kill me in our next match.»

Now that he mentions it, where the hell is Kid?

Sabo waltzed you around one last time before letting go and taking his leave with a gallant bow.

You shook your head before someone else bumped into you.

«Yo, troublemaker!» Bartolomeo grinned without stopping his weird dance «How are you the only cool Slytherin-dabe?»

You scoffed as your body started to follow the rhythm again.

«Watch it, Gryffindor.»

You pulled your wand out and pointed it at your throat.

«Sonorus.»

Your eyes searched for your housemates, still packed in the same area. Smoothie and some other Charlottes glared at you, but you focused on your friends.

Killer, Heat and Wire were drinking in a corner, while the girls were all in one group following the events.

«Hey guys!» your voice echoed towards them, gathering their attention.

You smiled and motioned for them to join.

«Stop being such party poopers! You made me come, now take responsibility!»

Some Gryffindors around you laughed at the scene and you pointed at them.

«Are you guys going to leave me here at these fools' mercy?! I'm your freaking prefect, come and rescue me!»

Your eyes locked with Perona's. She pouted and sneakily hinted at Smoothie, who stood in front of the Slytherin rows. When you looked over to her, her gaze sharpened.

What the hell is her problem now?

Bartolomeo snickered.

«See? Told ya. Only cool Sly–»

«Back off, cannibal.»

A familiar figure slid behind you, moving in synch with the music.

Your lips relaxed in a grateful smile as you lowered the wand.

«Killer!»

«Hi Y/n.»

Heat and Wire joined immediately and they were all more of natural dancers than you recalled.

Bartolomeo snorted, not at all intimidated.

«So now you snakes arrive!»

«Yes, now. Do you have a problem with that, cannibal?»

It was Perona's voice that surprised him as she stepped in the scrum dragging Mikita and Ginrummy by their hands.

«Finally!» you uttered.

«Well, our prefect asked us to join.» Killer said, moving beside you.

Perona shook her head.

«I swear, Y/n, you just do whatever crosses your mind!»

«What do you mean?»

She puffed her cheeks but didn't reply, starting to dance with you and the other girls.

«Fine.» Cavendish sighed dramatically, reaching your little group «If you request my presence with such urgency, I shall join.»

You couldn't help but grinning as more and more Slytherin finally abandoned their zone and stepped onto the dance floor.

Sadi-chan gave a little show with her disturbing dance, Pudding was all swaying hips and eyelashes as always, and you even saw the Vinsmokes going for some robot moves.

But as much as you scanned the crowd, someone was always missing.

«Oi Killer!» you shouted to catch his attention.

He noticed you and leaned over to better hear.

«Where has Kid gone?»

The blonde seemed to frown lightly in the darkness before shrugging.

«He's around, somewhere.»

You blinked, a little confused, but decided to drop the matter for the time being.