Nightmare quickly, used her magic to hold them; A strong, metal, small, cage appeared by her magic too and threw the four little fillies into the cage. BAM! It closed as the cage shut tight.
“You’ll never get out,” she said like she was talking to a little, tiny, foal. Nightmare went to The Castle of the Two Sisters. She hid the three fillies in the castle where no pony can find them. “I hope you feel great in here, wait... No you won’t. MAHAHAHAHAHAHAHA.”
It wasn’t long till Nightmare left. The fillies were trying to get out. But, they couldn’t!
Nightmare thought of a plan on making the greatest revenge in Ponyville. Bringing back the dead! She zoomed quickly, to go to the cemetery. As she finally got there she used her strong powerful magic, to awake the dead!
Most dead are nice ponies who just happen to be metabolically challenged. Sure, they need to eat brains to make they pain of death abate, but no pony is perfect.