Canterlot City/Canterlot High School; October 31st,, Halloween Night; 5:50 pm

The night was in the prime of it's youth, the sun had fully set, the moon had risen high in the sky and had begun to illuminate the night sky along with the many stars and behind the few clouds that graced the night sky the bloody moonlight bled through them casting an forbidding shadow over all of Canterlot City. The time had at last come; Halloween! The night where all the monsters, ghosts, ghouls, witches, demons, devil and beasts from beyond the dark could come out to join the mortal world, for children to run around scream, laugh and play as well as collect candy and have cavities well into Thanksgiving and Christmas. At Canterlot High School the entire school had been made to look like some sort of haunted house or castle. As students returned back to the school clad in their costumes they were all greeted with a trick and a treat; the trick being a frightening from Nightmare Moon via jump scare and since she could appear almost anywhere with the help of her ability to be stealthy and stalk the many shadows around the school she'd been chalking up quite the tally of scares and screams which would continue to add to her overall tally that she'd been working on all day.

When she was young it was a game between her and Tia; whoever scared the most people by the end of the night got the others candy and Luna always won and Tia always happily gave up her candy to her little sister but Luna had a sinking feeling deep in the back of her mind that Tia only ever did that because she knew if she actually tried to scare people that she'd probably scar them for life...when Tia wanted to be she was VERY scary and one would be wise to avoid finding out why she is so frightening if they valued their sanity as well as their life. Luna and Discord had made the mistake of crossing Celestia in their past and had each paid the price for it; Discord getting sent to an asylum and Luna getting sent to juvenile detention as well as rehab, Luna didn't or rather no longer resented Celestia for that as she knew she only did what she was forced to do and what was best for Luna in the end.

Discord on the other hand was an entirely different story. In their childhood Discord was the neighborhood bully and resident master prankster and self proclaimed lord of chaos. He found pleasure and fun in causing mischief and it was Celestia and Luna together when they were teenagers who finally got sick enough of Discord to where they managed to get him sent away to the resident insane asylum after getting him to prank the wrong person and that person happened to be the current mayor who was also their mother. Years later Discord had been released and while his pranks had calmed down he was still completely bat-shit insane but in a way that was non threatening...sometimes...it was really difficult to tell.

'I really hope I don't regret inviting him here...' Luna thought as she continued to stalk the shadows around the school near the gym where students would have to enter.

The hallways were decorated to simulate the twisted and wicked halls of a school and castle destroyed by a monster invasion, fake dead corpses lay everywhere and thanks to a special spray developed by the flower trio girls in the botany club the bodies actually had a faux smell of decay. The walls and lockers dripped blood, fake fires were set and the lights flickered on and off in some places whereas in other places there was nothing but shadow and over the intercom an eerie voice continued to speak and laugh evilly.

"Abandon all hope; Ye who enter here! Mawhahahahahahahahahahahhaha!"

' Now let's see whom shall feel my wrath next...ah here we are, Rarity & Sweetie Belle...My Rarity's beauty is quite stunning; the nightmare look suits her well'

Luna giggled with a grin licking her black painted lips as she stalked the shadows after the posh female and her little sister.

**************

As Rarity and Sweetie Belle walked through the rotunda; Sweetie stayed close to Rarity. She was always honest with herself and others and if she was being honest right now? She was scared half way to peeing herself and she stopped wetting herself when she was 4! The entire school looked like something out of one of those super scary horror films that Apple Bloom made her and Scootaloo watch; she still had nightmares about that little dolly with the messed up face and the knife.

Tonight she was dressed as something scary so everything else wouldn't seem so scary but like her sister she wanted to be scary yet elegant and so she was dressed as Elsa from Frozen but a more evil looking version of her thanks to Rarity. Her outfit looked like something out of the frozen tundra of the last ring of Hell, clad in an ice like royal regalia and even had a crown and a royal scepter. She was doing her best to walk like Rarity, head held high and nose turned up to the evils that lurked the halls seemingly unafraid. It was so strange, normally around all this nasty imagery Rarity would continually complain about how it would possibly ruin whatever fancy queen or princess costume she'd be wearing and that Sweetie could go alone while she avoided getting herself dirty.

However that wasn't the case this time; it was as if Rarity wasn't Rarity, almost as if she had become a completely different person. She still retained her elegance but there was something...royally cold about her. She was clad in a golden armor with a ruffled purple skirt, gold gloves and boots with a diamond necklace choker around her neck. Her hair was artfully disheveled and had a streak of white running through it and she had wings made of crystals, an effect of her newly gained magical super powers which Sweetie was a little(a lot) jealous of.

"R-Rarity..." Sweetie asked trying her best not to sound too scared.

"Yes dear sweetie?" Rarity asked in a regal yet cold tone completely in character.

"A-Are we almost there? This place is really-" Sweetie said her eyes darting this way and that.

"Terrifying? Frightening? Horrifying? A complete and total NIGHTMARE?!" Rarity asked naming off different words, still walking with her eyes forward only casting her cold gaze to Sweetie once or twice.

"Y-Yeah; that!" Sweetie said trying to keep up.

"SIMPLY SPLENDID ISN'T IT?!" Rarity said with a maniacal sneer.

"What?" Sweetie's face paled

Stopping in her tracks Rarity put her full attention on Sweetie Belle now.

"Why I dare say we've stepped straight through into the depth of Hell wouldn't you agree little sister?" Rarity said as she motioned to the various decorations, her smile sinister and her aura cold as she addressed her sister. "Truly lovely, the darkness and the dead cold of night is sooo..." Rarity rolled a hand allowing her words to hang as they stopped in the middle of the hallway and the lights flickered in and out and then she chuckled darkly and hissed a little. "Embracing..." Rarity said with a devious smirk as she hugged her sides with evil glee.

"W-What do you mean 'embracing?' " Sweetie asked curiously and was frozen under Rarity's intimidating aura and gaze, stuck in the dark with no place to run.

"Why didn't you know dear sweetie? Tonight is the night where all light turns to shadow, where the darkness is allowed to take us, when being a good little girl means nothing and being bad means everything...tonight mischief and merriment await all who enter this nightmarish Hell that myself and my dear friends have constructed...and I promise you my dear...sweet...little sister..." Rarity walked up to Sweetie Belle, making the young girl step back deeper into the shadow filled hallway, her cold aura sending rapid chills down the girls spine and the look of terror on her face was like catnip to Rarity.

Sweetie Belle stumbled into the shadows and fell on her butt and backed away, was this really Rarity? It couldn't have been, Rarity was no where near this scary even at her worst during one of her dramatic tantrums. She'd come face with a locker and was unable to escape as her the monster that had taken root in her sister continued its advance. She whimpered and cringed when Rarity took a knee and clutched her cheek with a hand, her cold sharp manicured nailed digging into her skin as she looked into the soulless eyes of the monster in front of her.

"Tonight? My retribution shall be oh so very sweet...the look on your face is simply delectable! So sweet, I could just eat you up..." Rarity whispered sinisterly in the freshmen girls ear.

Sweetie Belle then finally remembered...oh...she still must be sour about the whole slime prank thing; knew i shouldn't have let Scoots talk me into that stupid prank! I mean it was just jello made to look like slim and guts but still! Sweetie was paralyzed with fear, she didn't know what else to do but slowly the tears started to run down her cheeks as Rarity continued to frighten her. Looking the girl in the eyes again she'd make a small whimper.

"Awww is the little princess scared?" A ominous voice said from behind them both. "Fear not my child of the night...your mistress of the night shall protect you...you need only give into the darkness and scream for her...scream for nightmare moon!" The voice said clearly coming from over the intercom.

"You think anyone can say you from my wrath little princess?! Hahahahhaha think again!" Rarity said with an evil grin and reached to attack Sweetie belle with a clawed hand after releasing the girls face.

"AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH! HELP ME NIGHTMARE MOON!" Sweetie screamed as loud as she could and covered her face with her hands

"Thy cries have been heard...thy soul is mine...and you are now my child...and none, shall harm my children...not even their siblings..."

The voice said and then the lights died out and there was a scream and when the lights flickered back on...Rarity was gone. Sweetie uncovered her face and shivered and panted wondering if it was all over, did she really just make a deal with the devil to get rid of her sister? She'd always thought about doing that when she wanted Rarity to just go away when she was being annoying but never did she think she'd sell her soul to be rid of her. Standing up and fixing her dress she'd look to see where Rarity was standing and in her place was a small goodie bag and a note attached to it.

'UOM'

Sweetie Belle knew text talk very well thanks to Rarity and her other friends and so she knew that meant "You Owe Me". Gulping down her fear she'd grab the bag and rush off to where she thought she knew the gym to be after popping a piece of taffy in her mouth and giggling at the silly little joke written on the back of it.

"Maybe this won't be so bad; after all everyone is going to be scared tonight right? And now I have protection! Who is Nightmare Moon though?" Sweetie Belle wondered as she entered the gym which looked just as haunted as the hallways but there was music here thanks to Vinyl Scratch; remixes of Horror tracks that were ominous, foreboding and catchy all at once. There were a couple of older kids and younger kids already here; Scoots and Applebloom weren't there yet but she did see a few of her other friends there though. Rushing over to them she'd wave hello, doing her best not to trip over her dress.

"Hey everyone!" Sweetie cheered

"Hey Sweetie!" Said her friends, from left to right it was button mash, snips and snails and Dinky Hooves.

She and all her friends had planned to go trick or treating together tonight they were merely waiting for Apple Bloom and Scootaloo to arrive with Applejack and Rainbow Dash; apparently Applejack had to finish some work on the 'haunted farm' and had to pick up a friend from the train station so they'd be a little bit late but there was plenty to do at the party until then, like a scare walk, monster pictures, dancing with the zombies and plenty of yummy but also nasty looking Halloween themed food like cupcakes that looked like they were soaked in blood with a cherry made to look like a bloodshot eyeball. They all had a certain theme going on, Sweetie was a twist on a princess, Button was dressed as Wesker from resident evil, Snips & Snails were Mordecai & Rigby and Dinky was a mummy.

"So good to see you princess; looking enticingly evil tonight my dear." Button said in a perfect imitation of Albert Wesker. His hair was even dyed blonde and slicked back, he sported the entire black trench-coat look and even had a pair of glasses on and underneath them a set of contacts that made his eyes a bloody red. Bowing politely to Sweetie Belle he'd give his best evil sneer.

"Why thank you Mr.Wesker; my don't you look dashingly menacing" Sweetie quipped in return with a small smile and blush on her face which didn't at all go unnoticed by the others.

"Yeah if you think all black with bad 80's hair is dashing..." Snips said in a very Rigby like tone doing his best to imitate the raccoon. Her was dressed in a raccoon body suit and had his face painted to look like a raccoons face as well.

"Yeah he looks Dashingly retro..."

"Ooooooooooo!" They both said in unison very much like the two cartoon characters.

"Ugh you both are a couple of simple minded plebeians." Button groaned and shook his head. "At least I don't look like road kill and a poor imitation of a stork."

"Ooooooooooooo!" Sweetie and Dinky said in a similar fashion and genuinely laughed.

"C'mon let's go get some bloody punch while we wait! I hear they put zap apples in it this year!" Dinky cheered as she raced over to the snack table but was tripped by one of her bandages by none other than Diamond Tiara.

"Whooops. sorry 'bout that Ditzy" Diamond scolded with a grin.

"Hey! Leave her alone witch!" Button snapped marching up and helping up Dinky, even though dressed as a villain he was ever the hero to his fellow freshmen.

"Aw look a blade wannabe here to save the little mummy" Diamond chuckled

"C'mon D.T. lay off her, can't we just go into the haunted house and record people getting scared?" Silver Spoon protested.

"Inna minute Silvy we'll get to that"

"Why don't you just pissed off you spoiled little witch!" Button snarled.

"Why don't you go back home to your video games and your mommy you little twerp?" Diamond Tiara sneered evilly. "But I guess mommy wants some alone time tonight huh? Can't stand what an annoyance you are and gets her holiday jollies by letting any old enough trick or treaters treat her to a little trick..." Diamond said instantly seeing she struck a nerve.

"W-What'are you..." Button said visibly trembling.

"She really ought to wear something a little less revealing for Halloween; it's no wonder only the adults and teenagers go by your house." She laughed.

"D.T....chill..." Silver said trying to reign in her friend but clearly the girl wasn't listening.

"You take that back you little-!" Button snarled but then stopped when Diamond showed him a picture of his mother dressed in a sexy version of Medusa and his face paled and he clutched his fist.

"Ah, ah, ah; wouldn't want the little secret about your dear sweet mommy to get out to everyone in school or possibly even the police would you? I think I remember seeing a few of the freshmen going in there..." Diamond sneered

"Just what do you want Diamond Tiara?!" Sweetie shouted

"Simple; all your candy..."

"No way!" Sweetie and Button shouted.

"Then I guess the school paper is gonna be running this little picture..."

"You think we'll let you get away with this?" Button asked, hate clear in his voice

"Oh I KNOW you will because I've got dirt on each and every single one of you...and tonight I'M gonna be winning all that candy, but just in case Ms.Luna wins like she always does I want to have as much as possible; so be sure to be as cute and scary as you can for all those houses out there; I wanna see full barrels when you get back...except you two idiots, I have use for you..." Diamond said showing a few other pictures, one of Rarity covered in red and green slime and goo from sweetie belle's little prank last year and of Derpy Hoove's sharing a kiss with Time Turner when at the time she was currently dating Carrot Top, she then would have Snips & Snails act as her lackey's the two stooges not even hesitating knowing that Diamond Tiara would make their lives absolute Hell if they refused in any way

Sneering and giggling evilly Diamond Tiara put the photos away and waved a shooing hand at them all.

"Now run along little monsters, your queen wants many a sweet treat by the stroke of midnight, failure to appease her will result in the destruction of all of yours and your friends social lives...try me if you want too....C'mon Silvy; lets go see how many people have pissed themselves on the haunted walk!" Diamond turned to leave, she was dressed as princess morebucks from the powerpuff girls while Silver Spoon was dressed up to look like a banshee. Silver Spoon would cast a longing look at the group of friends her expression saying all it needed to say...she didn't want to go with Diamond Tiara and to right the wrongs she was going to commit but she had no idea how and simply with her anyway.

Sweetie, Button and Dinky stood there in shock and seething with anger and hate for the pint sized spoiled witch. Sweetie Belle felt like screaming and running to her big sister for help but that would only make things worse and Diamond had a habit of getting out of trouble due to her father's influence since he was the riches man in town rivaled only Celestia and Luna who much to everyone's surprise, had actual royal heritage and the two sisters had amassed quite the amount of wealth but decided not to flaunt it. Sweetie's brain racked for an idea, a way; anyway to get back at Diamond Tiara and keep her well earned candy by the end of the night. She wanted Diamond to suffer and scream and cry like the little bitch she was and she didn't care if that was unladylike or unrefined, she just messed with sweetie's sweets and that was a very...VERY big no, no. Patting her friends on the shoulder she'd adopt a sneer of pure deviousness.

"Don't worry you guys...when the clock strikes midnight...she'll be the one screaming and giving up her candy...I promise." Sweetie said her voice dripping with joyful malice

"How?" Button and Dinky asked.

"Simple...We play her little game for now...and I call on a favor from the devil..." Sweetie said walking off toward the snack table taking another piece of candy out of the goody bag she'd gotten early and looked at the note and turned it over and it showed a phone number that said above it.

"Holler if you need me" ~ N.M.

"Yes, we shall have our vengeance and put that vile little witch through the rings of Hell!" Button proclaimed.

**************************

Meanwhile in the school chemistry lab

Having slipped into the labs unnoticed about an hour ago the gang of girls gathered around a black cauldron that was being heated by several burners boiled a glowing bluish purple and black substance. The girls gathered from left to right were Trixie dressed as a witch, Gilda dressed as a punk rock zombie and a new girl who had purple hair with black streaks, her skin was pitch black, her eyes an icy blue and she was dressed in an evil queen like dress. As Trixie mixed the items in the large black metal cauldron and mixed it with a yardstick she found in the room, she would speak an incantation from a black magic book with arcane markings all over it.

"Is it nearly finished?" The woman in the dress asked

"Almost Mia, just a few more minutes, once it thickens and cools it'll be ready for use." Trixie said.

"This oughta get those dweebs screaming their heads off in no time, and where did you say you got this stuff?" Gilda asked looking over the gooey black substance in the vile that this Mia had given her.

"Made it myself; I remember when I went to this school; Halloween was always my favorite time and it's been so long since I've heard the screams of the children...it'll be so nice to finally make my grand reappearance...and to say hello to an old friend..." She giggled deviously holding a hand over a crescent moon shaped locket.

"Ya really think they aren't gonna toss you in jail for this?" Gilda asked

"As long as I don't get caught, I'm only here for this one night and then I'm leaving, I simply wanted to torment this little place one last time before I make my final escape....and I couldn't leave without seeing my dear, sweet little ray of moonlight one last time..." She grinned and opened the locket and saw a picture of a young Luna together with her younger self as they appeared in High School. "Fret not Lu-Lu...We'll be seeing each other real soon."

"It's ready Miasma..." Trixie said finishing her brew.

"Excellent! Now you two go make the last of the preperations and mingle...I'll handle the rest here..."

"Ahem?" Gilda said extending her hand as if expecting pay and was right away met with a stack of twenty dollar bills.

"Your greed knows no bounds does it?" Miasma said

"Gotta keep the drugs flowing somehow right?"

"Um...is Trixie allowed to leave now? She'd very much like to get back to her date..." Trixie said casting a look at the door.

"Ah yes, yes Trixie you can leave and as promised you can keep that little book, I won't be needing it anymore." Miasma waved a hand at Trixie shooing her away.

"Thank you!" Trixie said grabbing the book and leaving along with Gilda.

Giggling sinisterly she'd lick her lips and look over the still steaming cauldron and sneered evilly.

"Prepare yourselves CHS....Miasma Shade has one last trick up her sleeve.....hhehhehehehehhahahahahahahhahahahahahahahahha!" She laughed throwing her head back in insane glee and when it finally died down she clutched her face with a hand and grinned a toothy grin through her fingers. "The time has come to become the darkness...tonight...everyone will know true fear...true terror...they will know..." Miasma took out a knife from a nearby equipment drawer and then took out a small black gem from her pocket. Slicing her palm she'd place the jewel in her bloody hand and would tighten her hand into a fist draining blood into the cauldron and coating the gem and then dropping it in the mixture causing it to bubble and shake violently and then exploded a ominous purple and black light that ominously illuminated the woman's face.

"DARKNESS!"

***********************

Meanwhile across town.

*Ding Dong* The doorbell rang and upon opening the person on the other side was met with a round of cheery 'Trick or Treats!' for a few little kids but almost all of them were scared away by the big girl wielding a chainsaw clad in a hockey mask. All except on little girl who was dressed like Weiss Schnee from RWBY. She had pure white hair and sky blue skin and her eyes were grey, her costume was a accurate version of the costume Weiss usually wears and she even had a little toy sword. The girl in the mask lifted the mask to reveal it was Aria Blaze and she slightly scowled down at the young child.

"Hey why ain't you runnin'?" Aria asked annoyed

"I'm blind...." Snowdrop said. "Trick or Treat!" She said still with a smile.

"Here ya go! Ooooh nice costume!" Sonata Dusk said coming out of the house and giving the little girl a few pieces of candy, she was dressed up as a rotten taco...her worst fear! The girl felt the candy drop into her bucket and gave a smile and thank you and skipped away to her mother who was dressed as Glinda Goodwitch.

"That one doesn't count since she was blind, you know that right?" Aria said scowling still.

"Do you really have to scare all of them like that?"

"Its friggin' Halloween you dunce; they come here to get scared, not my fault these kids are so pussy and wimpy..."

"You're the worst."

"you are" Sonata said

"You are!" Aria replied

"Are not" Sonata said

"Are too" Aria said

"Are not" Sonata said again

"Are too!" Aria shouted

"Are too!" Sonata shouted

"Are not! I am...I mean...gah! Why you little-" Aria realized that Sonata just bugs bunny daffy ducked her and grumbled.

"Hehehehe and you say cartoons don't teach me anything?"

"Whatever; anyway is cheese head done whoring herself up yet?" Aria asked

"You talkin' shit?" Adagio said coming into the room a hand on her hip "Cause your bitch ass can stay right here and finger yourself to scary movies again if you want..."

"ONE TIME! ONE FUCKING TIME AND I WAS DRUNK!" Aria snapped blushing furiously as Adagio brought that back up. It was a sex scene in a horror movie, she was horny bored and drunk on Halloween last year and thought Sonata and Adagio would be out longer.

"That didn't seem to stop you when we got home, good maker I knew you were a screamer but goodness Ari have a little control huh?" Adagio viciously teased

"Hmp says the one who moans and shouts like a damn opera singer when she has to stir the pot?" Aria grinned savagely

"My I didn't know you were listening sister; trying to tell me something about yourself Ari? The act of incest isn't illegal among sirens in case you forgot so if you want to take this to the bedroom be my guest but I will NOT be gentle with you...but since it's you I'm sure you'd want it that way anyway." Adagio quipped by incredibly fast.

"Argh fuck you Cheese head..." Aria huffed and blush deeply deciding to give up before Adagio pushed any further.

"Not now maybe later pigtails" Adagio said with a devious smirk

"Pft If i did I'd be fucking the volume out of your hair." Aria quipped getting ready to head out.

"Better men and women have tried and failed dear sister you know that..."

"This is gonna be sooooo much fun! We're gonna get so much candy!!!! Oh, oh , oh do you think we can hit a few parties before we come home?" Sonata asked grabbing her candy bucket.

"I think that'd be nice but where around here are any going down?" Adagio asked

"Um I think CHS is having one....and its supposed to be like; the biggest party in town, most everyone in town is probably going to be in that area for the night at least..." Sonata answered.

"I dunno; what if we run into the raingoons?" Aria spat

"Rainbooms..." Sonata corrected

"Whatever...what if we run into them and they shoot us with their freaky rainbow magic again?"

"We're powerless mortals now remember? Besides we aren't going to go cause any more trouble than anyone else tonight so I'm sure we'll be fine; more to the point we've avoided them for months, I'm pretty sure if we do see them they'll either ignore us or if they do try and talk to us, be our friends..."

"And?"

"I say we give it a shot, after all what do we have to lose right?" Sonata chirped "I mean they seemed really nice; I dunno about that Sunset girl though, she might not like us so much after we ganged up on her in the halls..." Sonata downcast her eyes

"Well from what I know she's got a checkered past just like us so if they gave her another chance the same can hold true for us; now c'mon, lets go out and raise some Hell ladies...just like the good ol days back in Equestria during nightmare night..." Adagio grinned her old sneer and walked out the door clad in her costume which was that of the devil wearing a very tight but form fitting red body suit complete with a tail, pitch fork and horns. Looking out to the night sky Adagio could tell this night was to be an eventful one, there was a familiar yet ominous chill in the air that sent shivers down and up her spine and this feeling had always somehow been a pleasurable one to Adagio, the thrill of danger had always excited her in a way and Halloween was one of her favorite holidays because she could dress up in almost anything and have the humans adore and worship her more so than they usually did on a daily basis when she had magic but now she had no magic, just her looks which were magical enough for her so she'd live with it.

'And who knows? Tonight I might just bring a little treat back home to help make a couple of extra screams well passed the midnight hour' Adagio thought with a devious sneer.

"Get ready CHS...because by the pricking of thy thumbs..." Adagio licked her lips. "Something wicked your way comes..."

Author's Note

Aaaaaaaw shit! it's goin' down ya'll! Special thanks to Shadowmane Px 41 for giving me the idea for Miasma, I made her full name Miasma Shade as you can tell she has a little history with our beloved vice principal.
Also how did you all like my Nightmare Rarity? is she evil and menacing enough?