Everything changes for Twilight Sparkle and her friends when a mysterious extraterrestrial ship crash lands in Equestria. When Twilight messes around in the ship's systems with her magic, she ends up transported to an alien world unlike anything she imagined: a box canyon in the middle of nowhere.

To get home, Twilight must enlist the help of the eccentric Red and Blue soldiers that live there... if she can get them to stop bickering first! Additionally, she finds herself being pursued by the enigmatic military agency known only as Project Freelancer. Back in Equestria, all is not well for Twilight's friends as forces involved with the crashed ship make themselves known. Reds, Blues and ponies will all have to work together to discover the mysterious connection between Equestria and Project Freelancer.

A crossover with Red vs Blue. Written with the intention for the story to be followable without having watched the series. (just don't expect to get all the references).

Now with editors! BradtheBrony and Rough_Draft.

I made a blog post explaining things. You should read it.

TvTropes Page.

Once upon a time, there were two friends who ran a farrier shop in Canterlot. The oldest fed the forge and used his earth pony magic to produce strong steel shoes, which the younger enchanted with his powerful unicorn magic. They worked together in harmony, creating beautiful shoes for all who visited until one day they met a young mare in their local bar. She was a mysterious creature, overstressed by her job in the palace and needing the company of two friends far more than she realized.

Until one night, when her sister returned during the Summer Sun Festival…

Created as a Collaborative work between Georg and Tek, who made all the good parts.
Editor: Snaproll

Cover art Horseshoe and Rose by public domain clipart, edited in Paint3D
Now featured on Equestria Daily

Luna's descent into Nightmare Moon could have been stopped by the ponies around her, if only they had not been so embroiled in their own petty squabbles and selfish desires.

'Experience is simply the name we give our mistakes.'
~ Oscar Wilde

We all know the story of how the Princess’ young student and five friends defeated Nightmare Moon and brought Princess Luna back to our lands. But what if the tale were false? What if the young Twilight Sparkle on the event of her entrance exam had not been rescued by Princess Celestia, but instead lost her mind among the power of her youthful surge and had to be sent away, far away before she could destroy all of Canterlot with her newfound power. Now the feral unicorn prowling the Everfree Forest only vaguely remembers her past, slipping away from constant terrifying attempts to capture her.

And she is beginning to remember what true power felt like.

Editors include: Peter, Justin, Featherprop, Mitch H, and Bad Horse
Featured on Equestria Daily
Reviewed by Chris on One Man's Pony Ramblings and by Paul Asaran on his review blog
Now with a TV Tropes page

Physical books are available on Lulu.com
Monster in the Twilight (Paperback) 272 pages
Monster in the Twilight (Hardback)

In the stars, a hundred years' journey away, the alicorns gather, to mourn, to mate, and to give birth to the new. They call to their sisters across the galaxies, and Celestia hears them.

Meanwhile, Dotted Line wants her to review tax rebate applications.

(2nd place out of 113 in the "No Regrets" write-off. Dotted Line is from "Whom the Princesses Would Destroy" by GhostOfHeraclitus. Picture by Earthsong9405 & AquaGalaxy, found by Georg. Reading by Super Trampoline. Russian translation by Doof Ex Machina.)

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

While Europe sinks into bloody war and the powers of Nazi Germany dominate the continent, a new dark power begins to rise that could destroy them all.

The Nightmare is returning. And all will bow before her glorious night.

Editors: Tek, Mitch H, Cerulean Blue
Photo Credit: Russian documentary on the Nazi saucers in Antarctica.

Nazis and alicorns and rockets, oh my.

The history of war may be written by the winner, but the Royal Historian is the one who provides the notes and background to the writer. The recent events that some have called ‘Mare Wars’ or ‘The Invasion of the Barracks’ are no exception. The Royal Historian has painstakingly compiled this folder of notes and background material on what should more accurately be called, ‘The Opening of the Guard.’

Please remember to return the folder back to the Royal Historian when you have completed reading, in the event we gather more material that needs to be included.

Musty Pages, Royal Historian

Source for inside photo
Featured on Equestria Daily and the Royal Canterlot Library
With sequel, The Night Guard - Night Mares
And an interview by Benman

The worth of a dragon is measured by their hoard, so what happens when a dragon finds something so valuable as to make all other hoards small by comparison, but so precious they cannot keep it for their own?

A young dragon discovers the answer when she finds the priceless treasure kept by the Sisters of Song.

A tiny alicorn, named Cadenza.

Editors: Tek, Skywriter, PaulAsaran, Mitch H.

Cover picture credit: Harwick on Fimfiction or Harwicks-art on Deviantart.com
Wonderful reading by Illya Leonov here on YouTube

A guest author part of the Cadence of Cloudsdale series by Skywriter, set several decades before the second chapter of The First Time You See Her and the blessed Sister Kale.

Filly Cadence turns her first heart. Part of the "Cadance of Cloudsdale" cycle; familiarity with the previous work is not required. Thanks to G.M. Berrow for the inspiration.