When Halloween rolls around and Pinkie gets into the holiday spirit, Sombra ends up having to get involved. That includes dressing up.

This idea was inspired by scoots2, and since she's brilliant and hilarious, you should totally check her out.

Part of the Equestria Girls SombraPie Storyline:
Dismissed
Class Resumed
Answered
Found Out

Another side story:
Distractions

Cadance and Night Light share a pleasant conversation in a café. Everything somehow manages to get really weird, really fast.

Proofread by Octavia Harmony and Selbi.

When Button Mash finds an old game in his attic, the Crusaders and their friends gather around to play it, completely unaware of the consequences.

Minor ButtonBelle in the story, though it's not a big part of the story. But, in all seriousness, Ouija boards are SCREWED UP and you should absolutely NEVER use one unless you know for sure how to use one(unlike the Crusaders, of course).

So, if you want to know more about Ouija boards, here are some links~:
How to use the Ouija Board
4 Ways to Use a Ouija Board
23 Terrifying True Tales of People Messing Around With Ouija Boards