Twilight decides to prank Nightmare Moon, then confront her.

Takes place after Nightmare Moon was defeated (she's turned back into Nightmare Moon as you will find out.).
WARNING: This story is a bit confusing when Nightmare tells her story!

Cover art by PedroRabidBunny

Celestia wakes up and expects a day full of boring paper-work and other dull things...

But then she realises her mane is no longer flowing in an ethereal wind, or as Luna says:
"You're mane's ran out of batteries!"

Cover art by SpinnyHat