A strange artifact arrives at Twilight's library and turns her into a dragon. From there, everypony she touches suffers a similar fate and the contagion begins to spread! Twilight and her friends struggle to avoid spreading it further in this comedic misadventure of dragons and the fiery spells they weave. Can Twilight find a cure?

Throughout all of history, one concept has kept both the written and spoken word from becoming an unintelligible mess. That concept is that most holy of grounds known by some as "grammar." It sets down rules for language to follow, and keeps it free of distortion.

Yet something is wrong. The rules are failing. And only one pony so much as suspects that something is wrong. Something that goes deeper than a simple appearance of errors. Something that could be an attack on the very root of language itself.

Twilight is very excited to have perfected a new transformation spell. While trying it out on Cadance, however, an ill-timed sneeze turns everypony in the room into cats, including Princess Celestia.

Stuck in the form of a tiny (and adorable) kitten, without access to magic, Twilight has to find a way to fix everything, all while dealing with her growing feline instincts, the hazards of a pony-sized world, and a Princess Celestia who seems to have forgotten she ever was a pony.

This story was commissioned by DbzOrDie. It features cover and interior art by the talented Elbdot.

When Applejack unwittingly gets caught up in Twilight's perfectionism, she quickly learns far more about the unicorn than she ever expected...

Twilight had planned to visit Sunset Shimmer and her friends over in the other world for a nice, quiet weekend, away from all the worries and problems associated with being a Princess of Equestria. Unfortunately, things rarely go as planned.

After an accident cuts her off from Equestria, Twilight finds herself stuck in the human world until the gateway between the two worlds can be fixed. Which wouldn't normally be a problem...

...If she wasn't still a pony.

Now with TvTropes page!

Cover art
Proofread by Dusty Old Qrow, RQK, Dusty Tomes (Ch. 2), Emtu, and Doctor Candor.

Princess Twilight Sparkle lay there in anguished silence for almost a minute until she decided to let Scootaloo, Apple Bloom, and me help her. It came out as a whisper: "My special talent isn't magic." Of all the ponies we might help, I had never imagined our first might be Twilight, or that it would essential for Equestria that we got it right.

Featured (as high as #2) from Oct 18th through Oct 22nd 2015 for 100 hours.
Thank you everypony!

This is a fic based on the Time Loop Files, the format of which was first codified by Innortal on fanfiction.net.
Here's a brief guide.
The basic idea is, one character (the Anchor, usually the main character of a fictional setting) is looping back to the very first moments of their parent series every time either they die or some kind of time limit expires. They of course end up monumentally stir crazy given enough time.
Eventually others start to loop as well.
The reset is not always perfect. Sometimes a loop's history will be different to the "prime" loop, or canonical plot.
"Crossover" or "Fusion" loops also occur, randomly. These can involve the home loopers having a guest, or the anchor for one universe spending time in another, or replacements of one character by another.
Vacation Loops are where the Anchor (or others) decide/s "buck it" and lets off steam by doing whatever comes to mind. There's little or no attempt to maintain the original timeline.

In addition, and particularly more recently, it should be known that this story has a collaborative element to it - people may submit loop ideas or loops, ideally at the Spacebattles thread (a link to the current version of which is on the Trope page), and they may become included.

There's two page image options, thanks to Filraen - the current page image has been edited by the original creator from this work of theirs.. The other one is here:
http://hourglass-vectors.deviantart.com/art/MLP-Loops-466030169

This story is a sequel to Celestia's Twilight

We all know the story. One thousand years ago Princess Celestia was forced to banish Nightmare Moon to the moon to save all of Equestria, but what if Luna had been hiding something from her sister, scared of how she would react? When Luna had no other choice, she cried out for Celestia and Celestia came. For one thousand years, Luna wondered what happened when Celestia left; now she's finding out...

But is it already too late, or will Luna be able to take the role she had so long dreamed of? The dream of being a mother?

editor Don't Look At My Name Bro! and RK I am lost without you!

Princess Celestia, tired of the constant pressure that ruling a nation puts on her, decides to take a day off and let Luna take her responsibilities for a day, something the younger alicorn is more than happy to do. She disguises herself as a pink maned pegasus pony named Sunny Skies and decides to go walking around Canterlot without any supervision. Unfortunately for her, not all parts of Canterlot are as safe as the palace, and she finds herself at the wrong end of a gang of muggers, who decide to kidnap her for a ransom when they see how much money she has on her.

Luna freaks out.

Celestia thinks it's hilarious.

Find this story and more in a print copy! Just click these words here!

Featured on Equestria Daily 8/15/13

Go here for the French translation!

[img]http://i.imgur.com/CUBPvKI.png[/img]

Edited wonderfully by sqarishoctagon and Cloud Hop

Updated cover art by Dominatore

This story is a sequel to The Monster in the Twilight

Now that Luna has returned to the throne, and the aftermath of her brief appearance as Nightmare Moon is being cleaned up, the story is over. Right?

Not quite.

Twilight Sparkle had nearly been destroyed in the chaos of Nightmare Moon’s return, but now with the assistance of her five friends, she is facing a fascinating new world filled with wonderful things. No longer the scarred monster who nearly destroyed Canterlot and raged through the Everfree Forest for over a decade, now she has been healed by the Elements of Harmony and is living at the edge of town with her adoptive mother Zecora. Not all the fears of her past can be left behind that easily though, and now she must face the consequences of her actions as she faces the most daunting challenge of her life.

Ponyville.

Letters is a sequel to the alternate universe story The Monster in the Twilight. In this story, Twilight Sparkle exchanges letters with Princess Luna, two ponies with a common problem of fitting in and making friends after the destruction of Nightmare Moon.

Normally I would try to talk you into reading the sequel even if you haven’t read the original story, but in this case, you’ll probably be more confused than entertained. But go ahead. I don’t mind if you don’t read the first story. You’ll never find out what an Urlock is, but that’s fine. It’s your funeral.

Editing Assistance by Alicorn Priest, Peter and Tek

Credit for the incredible picture All Night Study Group goes to Bibliodragon at Deviantart

Physical books are available on Lulu.com (up to Chapter 82)
Letters From a Little Princess Monster (Paperback) 726 pages
Letters From a Little Princess Monster (Massive Hardback) 780 pages