A normal day was all it took.
A simple failed prototype, a missed experiment.
There was an explosion, and I woke up. I don't really know what happened between those two events, but I'm fairly certain I shouldn't have awoken in a small, dark box.

I'm scared.

Cover art by the amazing Avatar of Madness!

This story is a sequel to What Have You Done?

Chrysalis, the Changeling Queen, has taken her prize, unhindered by Equestria's precious heroes. Celestia is little more than another prisoner of war now. The Bearers of the Elements of Harmony are lost, and the Elements themselves have turned away from Equestria's plight. As the world they once knew begins to crumble, a single question is asked among the people as they look up at their fallen heroes.

There is no such thing as "miserably ever after," for someone will always be fighting for things to change. Hope doesn't die just because someone's turned off the lights. Truth doesn't vanish when deceit begins its reign, and Harmony can only shine brighter among chaos.
Even as this world falls, we'll work to build it up again.
Even as you lose yourself, you can find greater things within you.
Even as fear rises up like a tidal wave, we'll forge a sanctuary to stand against it.
Even as you break, someone will always be standing there next to you to carry you through it.

Cover art is by Odin-odin.
Story theme (Equestria in Grey) is by Omnipony.
Main Characters are Twilight, Velvet, Discord, Nightlight, Luna, and Chrysalis, in that order.
See you in the comments, my dear readers.

Twilight Sparkle comes across a small, battered diary detailing a new form of transportation. While the research is sloppy and the notes incomplete, Twilight takes it upon herself to see that the ancient project is completed.

Of course, nopony said it would be easy.

This story is a sequel to Celestia's Tiny Student

(Title changed from "Ponyville's Tiny Librarian" for reason pointed in this blog )

Twilight Sparkle is a one-kilogram pony the size of a large rat, shrunken by Princess Celestia following her entrance exam to the Celestia’s School for Gifted Unicorns to ensure that her power surges would not pose a danger to the ponies around her.

She’s spent thirteen years full of hard training at her new size, facing the life-threatening experiences that came with living in a world of giants. To survive those thirteen years of hardship and joy, of learning and adventure, and of pride and humility, Twilight has challenged herself to be stronger, to overcome any obstacle.

Now that tiny Twilight is on her way to Ponyville to oversee the preparations for the Summer Sun Celebration, how well will this miniature mare fare outside of the confines of the castle? How will the other Element Bearers react to her? How will Nightmare Moon react to the tiny unicorn? Is Twiny prepared to face Ponyville, and, more importantly, is Ponyville prepared to face her?

Credits:
Art cover - kc day

Top editors: (editing and rewritting for months, hope quality is to your liking).
Kydois
Georg

Nightmare Moon's sentences editor:
Bahatumay

Applejack accent editor:
Crimson Star (Chapter 1 - Applejack)
Rebel Brony
The Notebook is grounded

Pinkie sentence's editor:
Plump it UP

Other editors:
Hereward
tana1100
Lab (small editing from prologue to chapter 4)

Pre-reader:
Rated Ponystar

To celebrate the release of this sequel, I created a group called “Twinyverse” for all fans of this story where you can talk about it and track all side stories with ease.
The Twinyverse Group

This story is a sequel to Nightmare Moon's Tiny Adversary

Twilight Sparkle is a one-kilogram pony, shrunken by Princess Celestia following her entrance exam to the Celestia’s School for Gifted Unicorns to ensure that her power surges would not pose a danger to the ponies around her.

She’s spent thirteen years full of hard training at her new size, facing the life-threatening experiences that came with living in a world of giants. To survive those thirteen years of hardship and joy, of learning and adventure, and of pride and humility, Twilight has challenged herself to become stronger, to overcome any obstacle.

After defeating Nightmare Moon with the help of her friends and the princesses, Twilight is ready to start a new chapter of her life in Ponyville. What kind of secrets and surprises await the little but powerful unicorn? Will this eventful town survive such an unpredictable citizen?

List of editors:
Top editors:
Nagel+Navari
Kydois
Georg
Plainoasis

Zecora lines editor:
Discord_Lexia

Luna lines editor: (helped a lot with old Equestiran)
bahatumay
Rated+Ponystar

Pre-reader (pointing out issues and giving suggestions how to improve the story):
Skydrake
Rated+Ponystar

Seconary editors:
lucia+merinero
Solstice+Shimmer
HeartLinda
tana1100
Pump+It+Up - some of Pinkie Pie's setences

If I forgot to add someone due to a long time that has passed, please PM me.

In order to improve their skills at detecting changeling infiltrators, Twilight Sparkle and the Council of Friendship ask their new friend Thorax to help them with a little training exercise. Their goal? Figure out which of their six friends is actually Thorax in disguise.

Dialogue heavy, as this story focuses on the cross-interrogation of the game itself.

Note: This story takes place before "To Where and Back Again."

The Piano Man has spent the last month in captivity, forced to play the piano as part of The Great and Powerful Trixie's traveling show. Now he's free, and recovering under the care of the Equestrian monarchy while Trixie awaits trial for her crimes.
All is not well, however. The Piano Man has a long road of recovery ahead, and all the time he must compete with overbearing carers, his own mental trauma, and even discrimination from members of Equestria's unicorn supremacist subculture.

This story is the kinda (can't stress that part enough) better-written sequel to 'The Piano Man'. Because the first story involved some rather dark scenes, I have included a helpful catch-up in the first chapter - so if you have no interest in reading a dark story, then you can ignore the first piece and skip straight ahead to this one.
'The Piano Man: Act II' is most certainly not a dark story, and neither is it sad. The sad tag is in place for scenes in which I reference the previous installment, and nothing else.

The absolutely amazing cover image was created by the even more amazing WIL_I_ZIN, (deviantART) who is just... just awesome, for helping out.

Celestia has lived for countless centuries. Looking over Equestria like a caring mother and tending to the needs of even the smallest of creatures. But now her time grows near. As she looks down upon Canterlot one evening, she has an unexpected visitor - a small, exuberant filly.

Her name is Death.

Princess Cadance, just like everypony else, needs some time of leisure from her many duties. While Shining Armor is taking care of their daughter, Cadance enjoys her lone trips to the nearby Nephrite Forest, where she can be away from all of her burdens and obligations for at least a short while.

She was simply destined to get mugged eventually, wasn’t she? Why not by somepony who takes his job very seriously.

Also available in Mandarin Chinese (translation by keplebletbett) and Spanish (translation by SPANIARD KIWI).

There's a lot of things about Cadance and Shining Armor that never quite made sense: their sudden appearance before the Royal Wedding; their suspiciously convenient suitability as rulers of the Crystal Empire; their oddly abbreviated pregnancy; and even their quick change of heart after Spike asked them to forgive Thorax.

Twilight Sparkle knows exactly how deep that conspiracy goes — she was there in the beginning, when her hive's queen created Shining. And she wasn't happy about it.

Finalist in the "Things Left Unsaid" December 2015 Writeoff! Rewritten and greatly expanded to fill in more backstory and to account for Season 6 canon.

Rated 'Worth Reading' by Titanium Dragon! "If [you like] the idea of a story which hints at a greater conspiracy behind the scenes which explains some of the plot holes we see in the series, you’ll likely enjoy this."
Reviewed by Matthewl419!

Cover art by Lo-23, using Twilight from "Deception is Magic" by Heilos.