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.

Twilight asks Discord for a game of chess. Discord agrees - in order to make a point.

And in order to ask Twilight to complete one simple task.

Cloudsdale. Bastion of the Pegasi, linchpin of weather control, home to the Wonderbolts. A magnificent metropolis gracing the skies of Equestria. So what happens when an oblivious human starts stumbling around in a sailplane? As they say, hilarity ensues.

The princesses gave their magic to Twilight to prevent Tirek from stealing it. As a result, they end up stuck in Tartarus.

Marvelous place, Tartarus. Really brings ponies together. The fact that things manage to go downhill here says a lot about the wonders of family and alicornhood.

Spanish translation by SPANIARD KIWI

Audio Drama by Espa_Roba_5 and Ajvasquezbrony28
Live reading by The Living Library
Live reading by Astro-Brony

Proofread by Octavia Harmony

A friend advised me to write something, so I sat down and typed up this. I had fun, anyway, and hopefully at least one of you will, too.

A monster threatens to destroy Ponyville, again. More importantly, it wrecks havoc with a certain clockmaker's schedule. Quite infuriating, that.

EDIT - KwirkyJ has recorded an audiobook version! I think he did quite well, considering the source material.

Twilight is invited to Canterlot to compete with some of the greatest magicians in the world for the Moonstone Cup, a prestigious award for the most powerful and skillful magicians, unicorn and otherwise. Can she win? What sort of competition will she face?

Awesome cover image was taken from NoOneBahtim

A few days after the Nightmare Moon Incident, Spike awakens to find Twilight acting a little...odd. Or odder than usual anyway. All of a sudden she's being all motherly, sure of herself in ways she's never been before, and even more outgoing.

But…it’s kind of creepy how she just seems to know everypony’s name, or their habits, and even some stuff nopony else should know.

But she's still good old Twilight...right?

Featured 5/28/2014

This story is a sequel to Promises

Scootaloo's settling in to life with Rainbow Dash. It's smooth sailing from here right?

Once again this story wouldn't be possible without the pre-reading and editing efforts of:

juter4397, The Patriot, eggynack

So if you like this, go give them a thumbs up.

You probably don't need to read Promises to understand what's going on, but it would be useful.

Featured on day 1, thanks guys.

One beautiful morning, Twilight Sparkle decides she wants a free salad. After a small amount of theft, assault, battery, and arson, she sits down to enjoy what is sure to be the best tasting salad ever.

...Or she would have, if it weren’t for the Equestrian Intelligence Service locking her up as a potential threat to national security. Now, Twilight must escape a maximum security holding facility hidden deep underneath Canterlot. And to do it, she’ll need a paperclip, a spymare catsuit, an escape plan, and an alliance with the dastardly Drakbog, King of Frogs.

After a recent cluster of calamities cursing her farm, Applejack's livelihood stands on the brink of financial ruin. Desperate, she asks Twilight Sparkle for a loan to keep Sweet Apple Acres running.

But when Twilight's unexpected answer inadvertently causes the two mares to butt heads, the stalemate threatens not only Ponyville's food supply but also their friendship.

With the two obstinate mares sticking to their principles come Tartarus or tidal surges, can Pinkie Pie bridge their ideological gap and save Applejack's farm?