After a being severely injured in a battle with Discord, Applejack needs to be healed by the Elements of Harmony, however after getting back on her feet, Applejack begins to undergo strange changes.
(I asked one of my friends to challenge me to write an original story, and he gave me this pitch, I took it and ran with it, however it got a little out of hand and became this, this can be considered part one, the rest is so radically different I decided it needed to be uploaded separately, I hope that doesn't break the not uploading chapters as separate stories rule Part Two: Retexo)

When dark creatures begin appearing in Equestria, Princess Celestia and Princess Luna summon the bearers of the Elements of Harmony to Canterlot. Before the six ponies can arrive, though, four strange ponies are expelled from a portal that appears in the throne room, and they explain that Equestria is not the only place at risk from these creatures. Thus begins an adventure that will reveal a greater destiny for Ponyville's librarian than she could have ever dreamed of.

Kingdom Hearts/My Little Pony: Friendship is Magic crossover. Pairings undisclosed.

Twilight Sparkle is called away to tend to Luna when she falls ill. As Luna grows sicker and Twilight more determined to help the younger princess, she begins to uncover dark secrets about the elements, the alicorns, and her own past.

Twilight Sparkle wakes up one morning to find she's undergone some changes. She shortly discovers she wasn't the only one. (New cover art by Jamey4 on deviantart http://jamey4.deviantart.com/)

Warning, this work of fiction contains multiple fourth wall breaks, massive silliness, and more than a trace amount of alicorns.
The author may or may not have snapped at times in the writing of this work, and it shows. Bring a towel, you may get wet.

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

Finding herself with wings and unusually powerful magic, Twilight Sparkle proceeds to have breakdown after breakdown, until with the help of her friends, she confronts Celestia and Luna about it... And learns that she's a far more important little pony than she ever imagined - for all the wrong reasons.

Awesome painting by Drezzer can be found here!

20 megapixel version is here (10MB JPEG, 210dpi strangely, 24"x20")!

Thanks, man!

Applebloom wakes up to see that she has both a horn & wings! Will she have to leave her friends & family for a boring life as princess? (My first fanfic, people. Don't be too shy on the comments.)

(...Don't look at me like that! I am NOT trying to gain readers by cashing in on the "alicorn" cliche! Which reminds me...)

(AllponiesarepropertyofHasbroandLaurenFaust.IownnothingexceptthisTOTALLYORIGINALfanfic.)

(Huzzah! The rights have been doubled!)

Luna discovers something hidden from Celestia for twenty years, now, with emotions running high, she enlists the help of the Mane 6... but what seemed to be a single mystery, soon reveals a darker and much more complicated plot that will soon decide the fate of Equestria.

Check out the Empty Room TV Tropes Page (Warning: Spoilers!)

Revised chapters edits and proofing (with many thanks) by: lammy, Trevor, Nick Nack, Fifth Alicorn

Should you form attachments to mortals if you yourself will never die?

Losing the last of her friends in a battle that should never have been fought, Twilight Sparkle's world falls apart, until meaning and purpose come back into her life in the most wonderful way imaginable. But she forgets, again, that every living creature must eventually die...

Sequel to Not My Destiny, which you can read here. PG-13 for some mild psychological horror and plot-relevant, non-gratuitous injuries. I'll try to keep to the same chapter-a-day release schedule as I did back over New Year's.

Glorious cover art: Secreta Altare Window 3: Twilight Transcendent used with the kind permission of the magnificent confused--guy!

Celestia and Luna were born as unassuming foals in troubled times. But already marked for greatness, the simple earth ponies stand to face a world set against them, full of danger, fear, and sadness. A world they will change forever.

A sweeping epic taking place before Equestria was made, where Celestia and Luna must rise from normal foals to become the Princesses we know them as, beset from all sides by monsters, other ponies, and even the forces that govern nature. Their tale is as tragic as it is triumphant.

Currently on hiatus. For more info, go here.

(Cover and internal art by Madmax)
(Editing credit predominantly Lightside Luc)