What do you do when you know terrible things are coming? Lie, and tell yourself it will be okay.
What do you do when those around you will shortly disappear, smiles on their faces as mortality bears down on their unsuspecting necks? Smile back, and tell them it will be okay.
What do you do when the day has come for you to die? Say a cheerful farewell to everyone, and tell them it will be okay.

What do you do when the end is here, when the universal illusion melts away, and the mere thought of you winks out of time and space forever?

You ask "Who?"

Image can be found here http://www.animalhi.com/Mammals/ponies/cartoons_sunset_reading_unicorns_books_my_little_pony_twilight_sparkle_my_little_pony_friendship_is_17499

Every really really hated somepony? Ever wanted to call them rude names and always get away with it? Well look no further! 'Why ___ is a Dumb Dumb' is a book just for you!

This story is a sequel to How Not To Use Your Royal Prerogative

  In an Equestria where the Sonic Rainboom never happened, Sunset Shimmer is the prized pupil of the Princess of the Sun. As Sunset struggles to make up for her past misdeeds and come to terms with the pony she wants to be, Celestia sends her to find the classic work The Application of Unified Harmony Magic from the Royal Canterlot Archives.
  Right after lunch, some meddling by her friends and meeting somepony with firsthoof experience of the Sunset she used to be.

Featured on Equestria Daily on August 18, 2016!
Appeared in the FimFiction Featured Box!

Cast: Sunset Shimmer, Moon Dancer, Minuette, Twilight Sparkle & Princess Celestia

Stories set in the Wavelengths Timeline in chronological order:

Origins Arc
The Alchemy of Chemistry
Bards of the Badlands
Grading on a Bell Curve
Habits of the Equestrian Phoenix
How Not To Use Your Royal Prerogative

Applications Arc
The Application of Unified Harmony Magics
Princess Celestia: A Brief History
The Cloudsdale Report

Dreamers Arc
Tactics of Snowbound Unicorns
A Study in Chaos Theory
Teahouses of Saddle Arabia
As the Raven Flies

Cover Credits
Cover Design by Amber Spark
Sunset Shimmer Vector by TigerBeetle
Pony SciTwi Vector by Osipush
Canterlot Bookshelves Vector by FavoriteArtMan
Sunset Shimmer Cutie Mark by MillennialDan

Beta Reader Credits
Ebon Quill - Worldbuilding Writer on The Manehattan Project
Quantum State - Technical Director of The Manehattan Project
The Albinocorn - Master of Sunset Shimmer Stories

Strongly Recommended Stories:
The Brightest and the Best by Pineta - The events in this story are considered to be completely canon to this timeline and explain Twilight's entrance exam to Celestia's School for Gifted Unicorns. I cannot recommend this story enough.
MLP Annual 2013 - "The Fall of Sunset Shimmer" - As above, the 8-page short comic in the beginning of the Annual is also considered to be canon, though with some major variations.

Version 3.0 Edit: Extensive grammatical and mechanics changes. Adjustment to timeline of Sunset's second mirror experience.

Twilight Sparkle in brought in for a short interview on her recent discoveries concerning recent global 'phenomena'.

Sequel to 'Can't Run Away Anymore'

This story is a sequel to City of Monsters

When a frantic Night Guard seeks help in finding his long-lost wife and daughter in the middle of the Everfree Forest, he finds only Fluttershy able to guide him on his dangerous quest. But as they search, they find far more than they expected, and in the end, he may be forced to accept the painful reality that the daughter he seeks may not want to return with him.

The only thing in the Everfree Forest more frightening than a father trying to find his lost daughter, is a mother who does not want to let go.

Editors: Tek, Peter, ChappedPenguinLips, Docontra
With a review by PaulAsaran
Credit for the vectors used in the cover art:
Hellswolfeh - Nightmare Night in the Everfree Forest
Dragoart.com for the bat, which I vectorized and adapted.

When some of her friends develop a relationship after spending a few days out to solve a friendship problem, without finding any friendship problem in the first place, Twilight Sparkle start to think something is wrong with the Cutie Map. She's mostly right.
Warning: Story is very silly and we can only hope it never turns out to be canon.
Rated T for some sexual references.
Proofread by the awesome Nephox Venom.
EDIT: Featured in 18/10/2016! YAY! THANKS GUYS!

This is only a tiny part of my story but I guess this is the end of the line for me. I've had a great run but I guess even I have to make mistakes sometime.

Discord once had a lover, fiance, special somepony whatever you would call it but after a terrible accident he promises he will never love again, but after thousands of years what if he finds that one of his lovers Descendants is an exact replica of her?

(Posey cover art was made by Sunley on devianart)

After hearing Nightmare Moon's perspective of what happened 1,000 years ago, the mane six agree to help her, instead of Celestia.

So Nightmare Luna knows this isn't a trick, she puts up six trials for each pony, each with the same theme: Their worst fear.

Rated T for Tia's behavior in the second Prologue. (nothing really bad. )

Not all chapters are sad, here are the ones to look out for if your feelsy.
Apples to the Corpse
Blind and Homeless

Twilight always loves a good problem. Actually, it would be more correct to say that Twilight always loves to solve a good problem. Problems left unsolved make Twilight act like a silly pony.

So today, Twilight attempts to-

A collection of short stories starring purple-smart and her lovely assistant. I don't claim to understand what I'm writing about. This is mainly due to the fact that many of the themes in each chapter pertain to topics that are far beyond my understanding. But that didn't stop me.

Please bolster my self-confidence with nice comments. It makes me feel delightful.
Blehh.