Rainbow Dash's morning was pretty much ruined.
She tripped getting out of bed and landed flat on her face, giving herself an aching muzzle.
She forgot to buy her favorite brand of hay flakes at the store yesterday and had to eat plain toast for breakfast.
She found out she had to pull double-duty today and tomorrow on the weather patrol.
Oh, and she found a nearly-dead foal, broken and bleeding at the edge of Ponyville.

The rest of her day became a whirlpool of stress and worry but the colt woke up, thank Celestia.
Something's not right, though. Nopony can find his parents, he's not in the registers, and there's an unsettling look in his eye...

-
YouTube reading by Fire Hearth

Chinese Translation by forgivenlove

Russian Translation by Likantrop

TV Tropes page, if you're interested in that sort of thing.

A freak lightning storm, strange lights, and an unassuming, yet mysterious stone obelisk. What do these things have to do with an average college student from North Tonawanda? At first, nothing. But when nineteen year-old Connor lets his curiosity get the better of him and lands in the center of a cosmic coincidence, he probably should have left well enough alone.

Now he finds himself stranded in an impossible world where magic is real, and "normal" takes on a whole new meaning. A world populated by sentient creatures calling themselves "ponies." A stranger in a strange land, Connor's yearning for answers and a way back to Earth will try both his patience and his sanity in the days following his arrival, even with the support of his new equine friends. But as he witnesses his life slowly spiral out of control, he will call into question his definition of home, humanity, destiny, and what it means to truly belong.

Rated Teen just in case for occasional swearing. This story takes place shortly after the end of Season 2, and the main character is from an Earth where MLP never existed (in order to preserve proper characterization). Or just assume he's never heard of it, that works too.

The title is not an Evangelion reference, I was just inspired by the wording scheme.

After the Canterlot Invasion. a changeling becomes lost in the Everfree Forest. When he’s finally discovered, it will take Twilight, her friends, and even Celestia and Luna to show him that there is life beyond the changeling hive. Follow Shade on his journey through light and darkness as he learns to embrace his inner strength and become more than he ever thought possible.

Enjoy the follow-up:

Faded Memory: The Rise and Fall of Sombra

Everything dies. Sometimes, a life is left unfulfilled and with many regrets. The problem is, there are no do-overs. No second chances.

Not usually, anyway.

Sometimes, cosmic beings of unknown power just like to provide people with those second chances one such person thought impossible. Why? Who knows? All she does know is that she's now a small blue pony with wings.

A very young blue filly at that, and one who has to deal with the scars of her secret old life while living under the shadow of an older sister who doesn't know what to make of her.

Life is never simple, is it?

Inspired by: Gilded Sister by Kind of Brony.
Cover art made by Skijarama!
Reading can be found here.
Featured on 13/07/2017.

Following the return of the Crystal Empire, Twilight begins some intensive research into the history of the Empire and its late king. Modern historians know next to nothing about the enigmatic dark mage. Who was he? Did he have family? Loved ones?

The answers to those questions changes everything the Element of Magic knows about herself, and in doing so catches the attention of a shadow that yet clings to the frailty of life...

Cover art made by Skijarama!
Reading can be found here.
Edited by RC2101_Copey.
Featured on 20/10/2018.
Russian Translation: Here

A young girl, having been robbed of her childhood and very life by illness finds herself given a second chance in a strange world and with an even stranger body. With a new life, family, and even a brother, she tries to cope with the bizarre world she's found herself in while also trying to embrace her role and become worthy of the gift she has been given.
Being a princess can be hard however, even if it's only an honorary title, especially when you're the twin sister of Prince Blueblood.

Warning, very slow burn.

This story is a sequel to Necromancy For Foals

Twilight Sparkle and Rainbow Dash find themselves drawn by the call of the cutie map to a jungle in the middle of nowhere. Drawn further by the knowledge of an ancient temple, they are confronted with icy cold and a sense of dread.

A Necromancer was sealed away in this temple a thousand years ago.

Now, he is waking up...

((Sequel to Necromancy for Foals. Artwork by The-Minuscule-Task on Tumblr.))

Set only a week after the banishment of Princess Luna to the moon, the realm of Equestria is in a state of upheaval. Celestia's royal guard attempt to regain control over the vast empire once ruled by dual monarchs, and the young alicorn's actions as a ruler have become a subject of scrutiny after her sister's attempted coup. Two factions have risen in the turmoil: The Knights of the Sun and The Bright Moon.

Far away from the political infighting and sword rattling exists a small mining town on the outskirts of Equestrian territory. Where once the royal guard would have no trouble fending off raids from bandits or other criminals, the panic of the capitol has caused a withdrawal of military forces to more essential cities and trading ports. Completely undefended and without a spell or sword amongst them, this town was soon overrun by a band of bi-pedal canines calling themselves the Diamond Dogs. As brutal as they are lazy, the Diamond Dogs have forced the local population to work until collapse to collect gems from the town mine.

Outraged by his inability to fend off these bandits and thieves, a young unicorn named Bone Marrow tries with all of his might to find his purpose in life - his cutie mark - and hopes that it will be enough to drive off the invaders of his home. He will soon discover that his special talent is far more than he bargained for.

((A Sequel will begin for this story as soon as I finish I Am a Pet Changeling. Stay tuned on Discord! https://discord.gg/nDXd3AB ))

On a dark night filled with even darker magics, an insane cult attempts to give Nightmare Moon a body and life of her own, utterly separate from Princess Luna. But, when the spell is interrupted by Celestia, something unexpected is created.

Now, a little black alicorn filly named Nyx finds herself living under the care of Twilight Sparkle, only to be haunted by memories and emotions from her past. Is she Nightmare Moon reborn or is she simply a doppelganger with a soul and mind of her own? Can Twilight Sparkle protect Nyx from those who refuse to see past her dragon eyes and black coat?

Or, will Nyx be forced to inherit the sins that may not even be hers and become the greatest evil Equestria has ever known?

Ardi was a young wolf -- not a Diamond Dog -- from the forests outside Stalliongrad stealthily wandering Equestria. Until the day he ripped off a dragon's hoard in the Everfree, got chased into Ponyville, and ended up stuck inside of a enchanted ponysuit.

With only one painfully-shy Pegasus, three little fillies, and a blackmailing baby dragon to cover for him, how long can a wolf hide out in a town full of crazy ponies intent on turning him into a wolfskin rug? Especially when he's forced to pose as not only a well-known local pony, but as one of the Elements of Harmony?

And when fear of Changelings is also ahoof in Equestria?

Thanks to some very kind fans, mainly Jordan1179, this story now has its own Tropes page: Tv Tropes Wolf In Pony's Clothing

Now with a sequel! Queen Vespid joins Rarity, AJ, and Fluttershy on a little trip to Manehattan to model some clothes for Carousel Boutique and search for stray Changelings -- who might not want to be found. Right here at Manehattan Madness