AKA The Costumed Curse Catastrophe

Nightmare Night, a night in which ponies dress in crazy get-ups and have fun dancing, partying, and collecting goodies from your neighbors for free! What could ruin a night like this?

How's about a nice curse to throw in the cauldron?

That's right. Something has gone wrong, and an ancient curse is unleashed. Now ponies all over Equestria have been transformed into the creatures they're dressed as!

Ghosts, ghouls, chickens, you name it!

Now, with the help of Austin, the Mane 6 must race against time to break the curse before the sun rises and Equestria becomes a freak-show.

But is there another behind this dastardly plot?

Stay tuned!