For Luna, nothing ever seems to go right. Except when it does, it's wrong.

Sonata realizes that she may have a crush on Sunset. Not exactly knowing how to deal with her new found feelings, she asks Adagio and Aria for help, which probably wasn't the best idea.

Princess Celestia has something to tell Sunset Shimmer.

Something about her parents.

It's nothing strange at all.

Yep.

Rated Teen and Sex for a very brief mention of how babies are made.

There was only one explanation. For all of it. All of the strange, erratic behavior. Her irrational fear of the sun. Her nocturnal habits of locking herself in in the dark and closing all the blinds. Wearing her sunglasses everywhere, even inside! It was time to invest in some silver, garlic, and a wooden stake.

"My name is Sunset Shimmer, and there are two Twilight Sparkles who are both madly in love with me.

Please help."

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.

A lone vampire bat sneaks through the mirror portal and ends up in the human world. Instead of apples, it now craves something far richer. And unfortunately for Sunset Shimmer, she's its next snack.

Sunset can't remember any of her activities past sundown. The light hurts not just her eyes, but burns her skin. And she's thirsty.

So very thirsty.

It's up to the Rainbooms to save Sunset from herself before she drinks the whole city dry. Too bad Twilight Sparkle is her primary target.

Thanks to Saro0fd3monz for the inspiration!

Edited by DrakeyC and HenryAnthonyCourtler

Now with a TVTropes page!

Now with a French translation!

Twilight Sparkle was annoyed to say the least, when her mentor Princess Celestia dismissed her warning of the Mare in the Moon and assigned her to go to Ponyville to supervise the Summer Sun Celebration. 'Make some friends' she says.

The thing is, Twilight already had friends. Friends she's had ever since she got into Celestia's school for gifted unicorns, friends she's taken for granted for many years, friends who she just happens to bump into before leaving Canterlot and invite themselves along to the celebration.

Between the crazy ponies in this little town and the crazy ponies who call themselves her friends, she finds herself at her wit's end while being constantly sidetracked in trying to prepare for the fabled Nightmare Moon's return. After all, it's not like these old schoolmates of hers are going to be able to help prevent eternal night and the end of Equestria as they know it, right?

For years Trixie has been living with a secret that has drove her to challenge Twilight Sparkle for the title of Equestria's greatest magician. Till now, no pony knew what that drive was, and once it is learned, can things ever be the same for them again? Or will this revelation bring about a change? Whether if it is for better or worse is for fate to decide.

My second entry for the Everfree Northwest 2014 Writing Contest

Featured on 2/27/14

After putting on the Element of Magic, Sunset Shimmer was shown just how much of a monster she really is. But that wasn't all the Elements did to her.

Sunset has now been forced to serve penance by answering any question truthfully and by doing anything asked of her, whether she wants to or not.

And she really doesn't want to.

Until all of the hatred in her heart is gone, Sunset is at the whim of her peers, unbeknownst to them of course. Can her new "friends" help her down the road to redemption?

If not, there's always that other Twilight Sparkle she keeps running into.

Current editor: Nomad_Sigma
Guest editors: Cerulean Voice, Flint Sparks, Starlight Nova, and Sholan
Extra thanks to Icarus_Gizmo, JustAnotherTimeLord, and HenryAnthonyCourtler

Cover art customized by Amber Spark!

Now with it's own TV Tropes page!
Posted on EQD June 25, 2014
Wanna read it in French?
Or, read the E-Pub version here or the online version here
Now available in print format!