Vent: Why Brains Must Self Control Themselves: My Little Pony: Friendship is Magic: and its Everywhere: Final Friendship or IDK What I Wrote or What Tags it Needs but Here it is

And so they are in front of a giant tree.

It has a door.

"This must be Fluttershy's old house."

"It's a library."

"I guess she relized the dangers of a library in time. Let's see if anything can be rescued."

They entered. The place is dark. Light from Twi horn. And they're underway.

Sudden light.

"SURPRISE!"

There's ponies everywhere!

"Hi! I'm Pinkie Pie and I threw this party just for you! Were you surprised? Were you Were you Huh Huh Huh?"

"Why have us turn into the Mare in the Moon: Nightmare Moon?"

"Oh that's silly! What kind of a welcome party would this be if it's quiet? I mean DUH! BORING!..."

That was enough for Twilight to conclude "Spike, we failed." but she listened to every word of Pinkie Pie anyway while seeing the stars get closer to the moon.

"... and now you have lots and lots of friends!"

"This place turned you into Nightmare Moon." said Twilight.

"Come on Twilight! It's time to watch the sunrise!" said Spike.

"Right! Let's rescure and get out!" said Twilight as she rescued all party stuff and escaped the evil library of illusions with surprised Spike.