When a time travel experiment goes awry, Rainbow Dash finds herself a decade into the future. The whole of Equestria, and in fact, the whole planet, has been engulfed in toxic green goo, with a dangerous planet on a collision course straight toward them. Can Rainbow Dash rebuild the time machine, travel back into the past, and save Equestria from its doom?

In case you couldn't tell, this is a semi-crossover with FusionFall. After finding out that OpenFusion exists, it sparked me to this idea.

My Little Pony belongs to Hasbro.
FusionFall belongs to Cartoon Network.

It's Hallows Eve, or as some would call it, Nightmare Night. In Ponyville, everypony's having a fantastic time! Only, that time will soon run out. In a graveyard not too far away, a blue hoof strikes through, leaking with Negative Energy. The Nightmare has awoken, and has taken back control!

Meanwhile, close by, a Halcandrean in Pony form by the name of Doctor Vohr T. Tex received this negative charge and went to investigate. Soon, he shall see how real Nightmares can be. They will see. Both him AND her...

Written by: Dr. Tex
Publisher: TexTek Inc. and DTI (Drew Tech Industries).

Doctor Tex, Professor Nique, Shadow Tex, and Carter L. are owned by me.

Sunny Bright, Nightmare Sunny, and Charmy (was that her name?) belong to the YouTube user Sunny Bright.

All other characters belong to their respective owners.

The Dimensional Observatory is a location where a Vortex Master can learn other worlds' difference with the Prime World.

Dr. Tex just gained access to the famous Dimensional Observatory, where he learns of many other Equestrias, and how they differentiate from Equestria Prime.

This is a series where Tex observes many different possibilities that could happen in the show, had the the characters chosen the other choice. It MIGHT bring attention to some other stories though.