Even the most common sayings can lead into larger things. Twilight sends a letter to Celestia confronting her unjustly founded fears of Twilight's immortality years after the passing of her last friend.

Based off an idea conceived early this morning. Approx 1 hour went into this. Finally have a proper counter to the Twilight Sadfics out there.

The friends we take for granted are often the ones that leave the largest impact on our lives. When Spike falls seriously ill with a mysterious disease and the ponies strive to nurse him back to health, Twilight Sparkle comes to grips with this very realization about her number one assistant--and friend.

EDIT: So this little story made it on Equestria Daily on 10/8/12. Now please excuse me while I pass out on Rarity's fainting couch while murmuring a soft Fluttershy "...yay."

In a world where she sees from a distorted perspective, all Twilight Sparkle can do is cling to the one pony she knows will never let her down: her teacher, the princess... no matter which princess her addled brain tells her that is. Twilight's used to rewriting letters, but when she's the one being rewritten, she finds the sensation to be altogether different.

Many thanks must go to my awesome editors, Varanus, Ebon Mane, shortskirtsandexplosions, Seattle_Lite, and Nick Nack.

Featured on Equestria Daily and The Pony Fiction Vault.
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It is three months after the Royal Wedding, and normalcy has returned to Equestria... for the most part. Pinkie is the same old Pinkie, Rainbow Dash is still addicted to the Wonderbolts, Rarity is still trying to learn Prench... but for Twilight, things are not the same. Ever since the Wedding, she's noticed an almost unnoticeable distance from her friends and from Celestia. This alone would be enough to bother her, but to make matters worse, she has been tormented by a dream that she cannot remember and physically cannot rest for fear of.

The tension is building, and something is bound to snap. If you've felt death and loneliness... what would you do to keep your loved ones from suffering the same fate?

Hello, this is your author speaking.
I know you're anxious to get to reading the story with the cryptic description would just like to point out a couple things before you get reading.

First of all, this is my first MLP fanfic, and it is set as an AU beginning just after the S2 finale, so I would appreciate constructive criticism. Not flaming or silent downvotes; give me criticism!
Secondly, it is important to understand that the AU tag seen above possesses two meanings. Not only is it an AU in the literal sense as it utilizes my own expansive worldcanon (dubbed Nidus) but in addition to that, it is an AU in that it does not accept the events of season three as canon. This is due to it chronologically beginning only 3 months after season two. The events of season three may appear, but they will likely be warped.
Lastly, I need to point out that I will probably be editing the tags and characters as this story goes. This being my first story, I'll need time to get a handle on the nuances of the submission system.
Thirdly, Please tell me if any of the fonts I use in the story go wrong. There are bound to be a few errors even with my prereading, so if you find them do say something.
Finally, I'd like to thank RoseyTail for her permission to use this marvelous image as my cover.

Thank you, and enjoy the story of Dark Horizons.

After nearly being mugged Twilight turns her considerable talent with magic towards self defense. When a fight with Luna goes farther that either of them wants it to, Twilight will need to find redemption in her new position as Luna's bodyguard and stop a conspiracy that wants to bring back a force more dangerous than either of them.

In a world full of magic, mere words can pose a deadly threat. When simply reading a sign can instantly infect the unwary, and cases start to turn up all around Ponyville, Twilight Sparkle casts the only spell she can find that can give her the time she needs to find the cause of the plague. But then she has to figure out how to stop the epidemic... without being able to read.

Editing provided by Spabble
If you like this, try Rainbow Typhoon
Audiobook on YouTube and for download on SoundCloud
Spanish version translated by MIkimoco
Russian version

Sometimes, bad things happen to good ponies. A year following a tragic incident, Twilight Sparkle returns to Ponyville to visit what she has been missing - her town, her memories, and most importantly, her friends. But will everything be as she remembers it?

This story has a sequel titled "In History, Maybe".

Developing new spells is a dangerous game.

When done right, the invention of a new spell can change the world, but even a slight miscalculation can have serious repercussions.

Twilight Sparkle is the best of the best, there's no doubt about that. But when a magical experiment backfires, she has to contend with the most horrible of all unintended side effects: Magic Feedback.

Let the hiccups begin.

Deep in the Royal Library is a book. A terrible book that is said to send whoever reads it mad. A book so dangerous that it has to be hidden away and secured with chains to prevent it from ever being opened.

A book which has just been accidently checked out by Spike on behalf of Twilight Sparkle.

The Star In Yellow is rising once more, and only Rainbow Dash and Spike can save Twilight before it's too late. Ideas live forever. Ponies do not.

This fic is loosely inspired by the 19th century story 'The King In Yellow'.

When Twilight Sparkle first arrived in Ponyville, she thought every pony there was crazy. Nowadays, she fits right in. This is the story of a normal day in her new home.