Twilight Sparkle never was a Unicorn and she didn't even know it.
What happens when her true heritage comes to light? Will she willingly embrace it? Or will she be forced to?

Beware of spoilers in the comments!

Edited by uTTerAbsurdity, Zervziel, Stormwatch and Gwenio

Cover art by the talented Cartoonlion and colored by the equally talented Stormwatch, original can be found here

Click here for the Tvtropes page

Cheer up, Twilight. It's not every day somepony changes species. In fact, no pony has ever changed species. It's something new and you like discovering new things. Granted, Equestrians don't like new things, especially things that fundamentally alter their government. So maybe there is reason not to be happy after all.

Although Chrysalis had no doubt that her plan was going to work she had to sure that, if her plan were to fail, that her race would survive. But her plan failed, utterly and completely failed. She had thought that her plan was fool proof but one mere child had managed to derail her plans in one fell swoop. Oh how the queen wanted her revenge and oh she was going to get it. She reveled in the irony of the situation for the pony that had sentenced her and all her children to a slow, painful death in the bad lands would also be the savior of her race. So as the Queen released her final breath she was content in her final revenge.

Thank Pink Pearl for the cover art

Big thanks to Arctic for doing chapters 1-14 on this story!

It is the year 3070, and Mankind is once again at war. The battlefields of the future are dominated by fierce, robotic war machines known as BattleMechs, and under their auspice empires have risen and fell. Now with the worlds of the Inner Sphere once again facing the drums of war, two mercenary units have set off on their respective missions, their only tie a common ride upon the back of a JumpShip.

Yet when a cosmic accident causes a misjump, they find themselves thrown into a world that they cannot fathom: a world where magic is a force of nature, where mythical creatures live and thrive, and colorful ponies live protected under the aegis of their monarchs. New choices lie ahead, decisions must be made, and the inner character of Humankind will be put to the test when the question is asked: to conquer, or protect?

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It is the year 1023 after the ascension of Celestia and Luna to the dual thrones of Equestria, and Ponykind is at peace. With Luna cleansed and Discord sealed away even more thoroughly than before, all looks bright for the future of the colorful equines. With friendship and optimism, they face each day with hope and vigor.

Yet, when the heavens scream as a foreign object tears its way into their reality, the princesses and their subjects face a new threat that they cannot fathom: creatures and machines from a world of death and darkness, where magic is unheard of and the avarice of powerful men drive the engines of war to crush the innocent under their bootheels. Can they survive the coming of these coarse beings, and can they maintain the magic of friendship in the face of Man's Inhumanity?

With Russian Translation provided by Undermind.

A crossover with the Battletech universe, though this is an alternate BT timeline of my own devising. [WARNING: Fandom related material and fanboy rant to follow. Non-Battletech fans won't care, read at your own risk.]

Because **** the Word of Blake and their munch-tastic "armies from thin air" BS. Yes, I know the Clans were almost as bad, but at least they had some sort of justification in-universe. Wobbies? No. Just no. I don't care that it was 15 years, you don't go from "fringe group of mutually-antagonistic and argumentative sub-groups following various degrees of religious mania" to "WE ARE THE SPACE NAZIS ALL WILL BOW BEFORE US" like that.

So for BT fans, this is a 'verse where the Second Star League is still around, the Wobbies still had their temper tantrum though it was smaller and more in line with a bunch of religious fanatics. No stupid "knock everything down for ClickyTech" Wizkids/Fanpro approach, nor any "hey let's shove a bunch of cheesy Level 3 stuff at the players to make the game even more complicated" Catalyst Games stuff. This is just good ol' fashioned 'Mechs wailing on each other, only with ponies. Who will also be wailing on 'Mechs. GLORIOUS.

Cover image by Icaron of DeviantArt.

Celestia sends Twilight a very special book that contains some of the oldest and most powerful magics known to ponykind. Included in the book is the way by which alicorns are created. Twilight visits her teacher in Canterlot to learn more, but gets much, much more than she bargained for.

I wasn't really sure what to tag this story. I chose the adventure tag because I see this story as an intellectual adventure for Twilight. Let me know if you think it should be something else and I'll change it.

Big thank you to GorisTheDeathclaw (my editor) for putting up with my typos and grammar fails, and for helping me in writing this. Also edited by my brother, but he's not worth mentioning.

Twilight loves her. She is the Princess, the beautiful, powerful, kind ruler of Equestria. But when the Princess denies her, Twilight vows to become stronger, to be better. Until one day, she will be so powerful that not even her mentor can ignore her any longer. One day, she would make Celestia love her back.

Twilight becomes alicorn of the stars. This is sort of a problem, because Luna kind of already was alicorn of the stars. Oops!

TV Tropes

Twilight Sparkle has always admired Princess Celestia. Her fortitude, her wisdom, her eternal grace and love for all her subjects. Twilight has often fantasized about what it would be like to be in Princess Celestia's horseshoes. She never imagined those fantasies would come true.

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Events take place a short time after the Crystal Empire's return (early S3).
Proofreading from chapter three-onward provided by Daemon of Decay.
Cover image used with permission from TexasUberAlles, thanks!
Inspiration for Sunny Skies from PhantomFox.