This story is a sequel to Veil of Thoughts

After surviving a spell that merged Twilight and Dash into a single being during the story Veil of Thoughts, the two mares are still struggling to get back to as normal a life as they can have. Except, didn’t they used to have more friends? Why is it so hard to remember…

The boundaries of reality are starting to crumble apart. Half dreams haunt their waking world. Memories of another life seep through their mind. What they were is quickly becoming little more than Fragments of Memories.

Friends, family and even enemies will come together to save Twilight Dash before it’s too late and there is nothing left to save.

The long awaited, highly anticipated, sequel to Veil of Thoughts. Don't forget to remember.

Twilight's friends may not be immortal like her, but she's not going to let a stupid little thing like death get in the way of friendship. Now the ruler of Equestria, Princess Twilight Sparkle discovers the truth of life after death: More life. Armed with this new knowledge, Twilight ventures from Canterlot Castle to find and befriend the reincarnations of her oldest friends, whether they like it or not.

Image used with permission of Heavens and Asteri

Feature box story of December 27, 2013. Thanks, everyone!

While researching a new spell, a miscalculation leads to Twilight and Pinkie Pie switching bodies. They decide to hide the accident and live as one another - for Science! What could possibly go wrong?
(With apology to the scientific method)
Cover art by Conicer!

"Suppose I killed them all?"

In a yard, all alone, a pony whiles away the time caring for the lawn and the roses. Roseluck can understand that, to a point. And she's determined to help.

First-place winner in the /fic/ write-off "Lost in Translation."

Featured on Equestria Daily!

And now featured by the Royal Canterlot Library!

Reading by obabscribbler, Present Perfect, Goombasa, and Reverb Brony.

A minor injury leads Apple Bloom to learn that she and the other Crusaders aren't like normal ponies. Not having their marks has always been their common bond, but as the trio uncover their unique nature, it becomes clear that their lives are intertwined on a much deeper level. As they learn the secrets of their shared past, it leads to revelations about their friendship, families, and their long sought after talents. What they discover and accomplish along the way is beyond what anypony would have thought possible.

There is now a sequel! Three Wishes: The Hole In The Sun

And a (more or less) standalone Christmas Special set between this and the sequel. Cinder Claws: The Caribou Legend Of Kol-Klor

Big thanks to totallynotabrony, Dusk Watch, AugieDog, and Piquo Pie for prereading and editing help!

After an unknown accident Twilight Sparkle and Rainbow Dash awake to find themselves sharing the same body! Now they must struggle to hold themselves together as their world is turned upside down. How long can two ponies exist in a single mind? It’s a race against time as they search for answers before it’s too late. When all is said and done, you’ll never look at Twilight Dash the same way again.

The war has gone on for far too long. To end it, Celestia just has to sign the treaty.

Go read the comments. They're way more interesting than the story itself.

Now with an audio version
Now translated into Russian and with an audio version.

Twilight Sparkle loves being a librarian. She gets to spend all day surrounded by her favorite things in the world—books—and best of all, nopony ruins it by trying to talk to her (or at least if they do, they have to be quiet about it).

But when the new head of the Equestrian Library Association gives her an ultimatum, Twilight's future as Ponyville's librarian will hinge on her ability to face the most horrifying creatures she's ever had to deal with:

No, not her new boss (who's clearly up to no good). Not the cult of the Dark God Cacophonon. Not even the strange book that won't. Stop. Staring. Worse than all that.

Library Patrons.

At 3:15 AM, Adams woke me with a loud knock on my front door.
"Put your boots on," he said when I answered. "There's a biblical monster in my house."

* * *

A Visual Companion, by the author
Interview with the author, from the Royal Canterlot Library.
Audiobook by Robin Jacks and Wubcake.
Audiobook by Scribbler.
In-depth analysis by the Heroic Tales cast.
Literary Analysis by ScarletWeather.
Special thanks to GaryOak.
Reviews:
City of Doors
One Man's Pony Ramblings
PresentPerfect
Louder Yay
Between Lines
Bad Horse