Twilight and Applejack get more than they bargained for when they agree to get Pinkie Pie out of Sugarcube Corner for the day. Pinkie's sudden obsession with the bakery's back door leads to an improbable adventure that sweeps Fluttershy up in its wake.

Now with a TVTropes page!

SF (canon species only; no humans) Ponies were magically and genetically engineered to be the perfect servitor race. They are powerful, adaptable, intelligent and completely under the control of their creators. A laboratory accident frees one such pony from her mental chains, but how can one mare save herself and the rest of her kind if she doesn't even know she's a slave?
This is not the Equestria you know and these are not your little ponies... not yet, anyway.

Tags: Adventure, Diamond Dogs, Gryphons, NO HUMANS (did I mention that already?)
Other tags: historical, mind control, Clarke's 3rd Law, excessive use of high energy physics, before they were famous.
Detailed review by PaulAsaran.
Cover art by endrome , used with permission.
Russian translation (partial -- 'unofficially' completed in the comments)
A Soot-Covered World, book 1.

Everypony loves Pinkie Pie but she's just about the worst employee in all Ponyville. Cup Cake & Carrot Cake finally have to put their hoof down.
Contains non-sexual disciplinary spanking.

*PLEASE NOTE; THIS IS A BABYFUR STORY. IF THIS IS UNPLEASANT TO YOU, PLEASE LOOK AWAY AND JUDGE ME KINDLY*

Late one night, Mrs. Cake found Pinkie Pie staring intently at her two babies, a look on her face that she could not recognize. She watches her charge over time, trying to understand what is causing her to do this. And Mrs. Cake realizes that it might be Pinkie being Pinkie, but Pinkie is something more important and precious than she first realized, and that herself, Mrs. Cake, is a bit more, too.

The first chapter of the first babyfur story I've written. At the gentle insistence of a friend, I have posted on this site for somebody's enjoyment. I hope you like it, and please tell me if there is anyway I can improve this. Also, why isn't there a family or friendship option for the tags?

Sweetie Belle is a normal filly, at least she thinks so. But even among her fellow Cutie Mark Crusaders, she had always been different. Maybe it was some slight bouts of immature behavior or taking after her older sister. But lately she has felt some strong feelings looming over her, she knows why but won't tell a soul. She won't even be honest with her self. So what does she do? The choice is obvious: She hides. She hides from friends, she hides from families and teachers. She hides her feelings where they can never pop out and ruin what life she has. But is hiding enough?

Editor: Albert Manhattan

Proofreader: Thunderchaser23

Warning: This story deals with things of a slightly mature and definitely 'taboo' nature. I would say exactly what it's about but it is a mystery, just don't be surprised if a few chapters in your brain explodes.

Note: Sorry if your brain explodes.

To save her sister and her faithful student, Celestia herself must travel into the ancient tunnels beneath the ruined castle in the Everfree Forest. She, and the guards who accompany her, must face the dark, twisting corridors. Still, what was Luna and Twilight's purpose at the old castle? Why were they unable to return of their own accord?

And what watches Celestia from beyond the light's edge?

The royal court of Canterlot welcomes its newest member with open forelegs: the human philosopher Voltaire, from Earth.

On Earth, Voltaire is known as the greatest enemy of tyranny in the history of literature, and a legend in his own mind.

On Equestria, the court betting pool is giving him a week before the Princess banishes him to the Moon.

Note: This story doesn't have sequels per se, but there are a couple of short follow-ups set in the present day ("Parade Coverage" and "Secret Histories"), and a prequel of sorts in "At the Inn of the Prancing Pony".

TV Tropes page.

Rainbow Dash is a well-known pegasus mare in Ponyville, but her parents know her as a colt, Sonic Dash. When they come to visit, she must confront both her parents and her friends with the truth of her identity. Will her parents accept her as their daughter instead of their son, and how will her friends handle the secret she has kept from them for so long? A story about family, gender identity, growing up with the wrong body, and, of course, friendship.

Frequently Asked Questions

Pinkie Pie has an existential crisis while painting her room. This self-parody is dedicated to Professor Piggy, who once told me that I could write a story about Pinkie watching paint dry and weave it into an incredible psychological journey. Let's see if he was right.

Featured on Equestria Daily.

Dramatic reading by MicTheMicrophoneZero.

Cover art by chaosdrop.

Twilight and her friends are approached by Princess Luna who presents them with a set of questions that trigger a long and perilous journey.

Did you ever stop to wonder what became of Trixie, Gilda and Blueblood after your encounters? What did these episodes truly mean to you? What role will they yet play in the lives of the Elements of Harmony?

Last, are these questions as relevant as the journey towards the answers? Who will benefit from seeking these answers - you, them, or I?