Original description
“In the preparation of Nightmare Night, Fluttershy decided to go all out and dress the very thing she fears the most; her inner self… Unfortunately, she dressed too well and places Rarity under concern of the pony folk in Ponyville not being to tell if Fluttershy is in costume or in rage.
Now Rarity has the bad luck of trying to tell Fluttershy the bad news… While coming out alive.”