The potion used to transform people into ponies has gone through many, many interations. When one of the older potions is used, results aren't quite what was expected.

EDIT: I used a piece of fanart which I thought was wonderful as the cover image :3

This collection of stories is set in an alternative Conversion Bureau timeline where Mankind reigns triumphant, having destroyed Equestria and sent it back into the sea. The only remnants are Celestia's severed head and the now-docile earth ponies that are made from her blood.

As mankind claws itself back from the brink of extinction, it must build a new society and move forwards into the future, with a changed destiny shared now by two sentient life-forms. In this collection, stories will be spun about sacrifice, loss, and nobility of spirit, of two hands and four hooves.

new title card from http://mi9.com/shattered-horizon-intro_77122.html

Fantastic, I finally get to visit my favorite cast of awesome talking ponies to have one small thing keeping me from enjoying it to its fullest. I CAN"T FREAKING INTERACT WITH ANYTHING. I guess being a ghost in Equestria isn't the worst thing that could have happened, at least I can shadow my favorite ponies and see what going on in their lives. Heh, I guess I've become the ultimate stalker, I do miss having someone to talk to that wasn't me, myself or I though.

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Set before the events of season three.

Rated teen for now for safety, rating may change later on based on where the story goes. Characters will be added later if they get added to the story.

After being sucked into the magical land of Equestria, YOU find yourself as the legendary Brony Hero in this exciting interactive adventure. Will you find the Time Orb and restore peace to the land? Or will you marry Fluttershy? Will you defeat the evil demon king Tirek? Or will you marry Luna?

With 21 endings to choose from, only you can decide your fate!

While pursuing a splinter of Hive Fleet Behemoth, Captain Sicarius and the Ultramarines 2nd company are caught in a warp storm that carries them and their prey to an unknown planet. Meanwhile, Princess Luna notices something strange in space that could spell danger for all of Equestria. Swept up in a war between the terrifying Tyranid swarm and the vengeful Ultramarines, the ponies must fight for their lives in a war that spans a galaxy.

Thanks to thirdstring_overlord and GiftedMonster for proofreading my newer chapters. thirdstring_overlord also writes an excellent 40k crossover that needs some fans. Go check it out!

Disclaimer: I do not own My Little Pony: Friendship is Magic and Warhammer 40k. They are the properties of their respective owners.