On secret assignment from Princess Celestia herself, Twilight investigates a powerful magical artifact for clues to the mystery of Luna's transformation in the evil Nightmare Moon. Incautious use of the artifact sends Twilight hurtling back in time. Can Twilight discover what caused Luna's transformation? And will she ever make it home again?

Kickass cover art used with permission from Bitz.
http://allthebitz.tumblr.com/

This story is a sequel to Trixie's Gettin' Back On Her Hooves

Trope Page

"Good job, you really are a lot like I was when I was a kid. Keep up the good work. Some day you might be just like me."

When she first heard those words, Diamond Tiara was excited. A rich and powerful business pony said one day she could be just like her. What was not to like?

Then it all came crashing down as the insidious Checker Monarch's web of deception was pulled away, revealing a sociopathic monster willing to torment her own family if it got her what she wanted.

Not only did Diamond Tiara see a pony she admired fall from grace, she witnessed something far worse. Her potential future self. The monster she could be if nothing changed.

Can Diamond Tiara change the winds of fate and alter her future? Or will the nightmare the monstrous Checker Monarch unleashed be repeated?

A direct sequel to Trixie's Getting Back On Your Hooves, taking place next in line chronologically.

My Little Pony Belongs to Hasbro!

thanks to Alexwarlorn, birthright1979, and ItsfromPeople on DA for betaing!

Thanks to Slitherpon for the cover art!

In the alternate timeline where Sombra was not stopped, a human finds himself suddenly in Sombra's body... just after the dread tyrant has conquered Equestria. Now trapped in a world where just about everyone hates him, he must try to keep up the illusion that he is the villainous conqueror, while at the same time try to win over his new subjects.

However, this will not be so simple, as the real Sombra is not quite dead... and he is most definitely not happy.

Part of The Ocean Of Time series.

Takes place in an alternate universe where Celestia and Luna used the Elements of Harmony to slay King Sombra.

Celestia and Luna are no more. The sun and moon have collided, and the heavens torn asunder in the aftermath of their final battle. The Elements of Harmony are missing, presumed forever lost. The fiends of Tartarus are on a rampage, and no one can stop them. And to make things perfect, the ruler of the nation of Boardor has decided to invade.
Desperate, Clover the Clever's last living student gathers together 108 virgin mares, in order to perform a ritual that will revive King Sombra. They succeed... kinda.
A human, in King Sombra's body, suddenly finds himself in an Equestria in a downward spiral with a bunch of technicolor ponies begging him to save them. Convinced that he's either dreaming, stoned, or insane, he tries to go along with it as best he can, although the voice in his head, a very angry voice with a hunger for conquest, crystals, slavery, and stairs, isn't doing much to instill confidence in his own sanity...

New Cover Art By Shadow Bolt!

This story is a sequel to The Best Nightmare Of My Life

Jeanne Tempest Jones, or Tempest to her friends, leads a rather ordinary life. At least for a teenager. However, one night everything changes. She wakes up in a mysterious land in a strange body, one that is feared and hated by the locals. Meanwhile, her boyfriend, Brian, and his twin sister Brianna find themselves along for the ride halfway across Equestria. Under the tender care of the Thestral (Bat Ponies) community, they will have their own challenges to face.

Now faced with numerous troubles, the largest being that no one seems to trust her, just how exactly will Tempest and her two friends reunite and find their way home?

Marked as a sequel to The Best Nightmare of my Life, as the concept being further explored is the one that sparked the Halloween One-shot. This is less comedy-oriented and more serious as to the topic of "Human looking like a villain" though.

(Title is once more a twist on the song "The Best Day of my Life")

One strange day, Harry Dresden turned into a tiny pastel horse with two girly tattoos on the rump.

She was not pleased about this.

And as strange and horrifying as this was, even by Chicago's only professional wizard’s standards there was a new job to do, and some new bunch of bastards to thump until they stopped their dastardly pony plans!

Except… there seemingly wasn’t a culprit to be found. No dark gods with a thing for horses had risen. No doomsday cults with a thing for pastel had declared their vile, equine intentions. Not as much as an ifrit with a lisp...

It seemed as if whatever had turned so many humans into ponies would simply be a strange and unsolved mystery.

Reluctantly, life simply had to go on, even if it was with double the number of legs as normal.

Now, months later however, this country with the rather silly name of Equestria wonders what became of one of their lost champions, and just why she never returned to them...

Five Score universe by TwistedSpectrum.
Dresden Files and all characters belong to Jim Butcher.
MLP:FIM is Hasbro's, but you should know that by now.

Written as a small Christmas 2014 gift to my followers.

Character tags to be added once done, to maintain surprise.

Story contains spoilers for the Dresden Files series, up to Skin Games! Also, spoilers in the comments!

Cover given by the amazing Tulip.

Sunset Shimmer was Celestia's top student until she betrayed her. Now she has escaped to the world through the mirror. However, instead of her becoming the tyrant queen of Canterlot High, an accident happens on the first day there, causing her to lose her memories. Now an amnesic Sunset Shimmer is alive in the human world, not knowing what her goal in life is or where's she from. The question is: Is this a good thing or will she still become a demon anyways?

First featured on Fimfiction's main page on 8/18/2015!

Cover image by the awesome: MixMassBasher

Note: There will be spoilers in the comments! You have been warned!!!

Also, this story is old. The early chapters are very low quality! You have been warned!!!

Twilight Sparkle, Princess Celestia's most prized and faithful student, is being sent to Ponyville to learn about the magic of friendship.

This is going to be fun!

A spinoff of Letters From A Disgruntled Friendship Student by milesprower06.

Shining Armor has many secrets. The first is that he has a diary, that he lovingly calls his Shining's Logs. And the second is that he is a reincarnated human. See how both secrets effect the life and relationships of Shining Armor, and help shape the future.

Explores the relationship between Twilight Sparkle and Shining Armor, and how it set both of them on their respective paths. Also explores the development of Shining Armor into the captain of the guard, his relationship with Cadence, and the powers of love and friendship.

Pinkie Pie finds a magic button that makes instant cookies out of thin air.

Twilight Sparkle, understandably concerned and insatiably curious, turns to science for answers, and makes a terrifying discovery.

She and her friends soon find themselves in a race against time to save Ponyville, and all of Equestria, from a terrible chocolatey fate.

Also, kittens. Lots and lots of adorable fluffy kittens.

(Cookie Clicker crossover, because what better time for a Cookie Clicker crossover than several months after everyone stopped caring about Cookie Clicker?)

(Now featuring crappy cover art, created by me at 3 in the morning!)