A Nightmare in Equestria

Rarity was busy as ever working ona new dress when a knock came at the door and she came out to find a note that read,

Left you a present at the basement of Sugarcube Corner

"Hm. Must be one of Pinkie's presents." Rarity said to herself,

"Sweetie Belle! I'm going to Sugarcube Corner. Keep the shop secure and don't touch the dress I'm working on!"

"Okay Rarity!" Sweetie Belle shouted back.

When the fashion maker arrived at Sugarcube Corner and went into the basement all she could see was darkness. She flipped the switch to find in shock the dead body of Rainbow Dash.

"Oh my word. Not Rainbow Dash, It should of been me!" Rarity shouted.

Then she noticed a bloody message on the wall that read:

Hope you enjoyed your gift. Wonder how your sister looks like as a dress.

Freddy Krueger.

'Freddy Krueger? Who the hay is he? ... Oh no. Sweetie Belle!' She thought.

Krueger was going to cut Sweetie Belle into little pieces. She then quickly rushed to get back to the Carousel Boutique.

Sweetie Belle was drawing a picture of her and Rarity hugging together when she heard the sound of metal scratching metal coming from downstairs. She trotted downstairs and found the dress Rarity was working on. She was about to try and sew something onto it when she heard the scratching sound but this time on a wall.

"Uh uh uh. No touching the dress Miss Rarity is working on." A voice said.

She turned around to find a burnt figure scaratching a claw against the wall.

"Who are you?"

"I'm the creature that haunts your nightmares." The figure said.

"*gulp*" Sweetie Belle said.

Rarity had finally made it back home and rushed in to find the place a wreck and gutted Sweetie Belle on the ground.

"No... It just can't be." She said.

It was hard to believe. Her own little sister... dead at her hooves. She slowly approached her and turned her over and saw a bloody message cut into her and it read:

This filly put up a quite a fight.

Too bad I couldn't make her into a dress.

So I sewed her heart to the dress you made.

Rarity looked to see a heart tied to the dress she was working on and found that there was a heart shaped cut into her chest.

"Oh Sweetie Belle." The sad unicorn said.

He brought her deceased sister into her grasp and cried her heart out.