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.

Chrysalis is miserable. The swarm is scattered, her hopes are dashed by defeat, and her royal rump is freezing off in these mountains.

The only thing that could make this worse is a baby drone who wants a bedtime story.

Part of the Hellpiercer 'verse, but knowledge of that story is not required.

Dramatic reading by Sojourner.
Cover art by LittleDarkDragon, used by permission.

Pinkie Pie can’t wait to join Madame Rarity in a trip around the world. There’d be new ponies to meet, vibrant cities to explore, mechanical marvels to behold, and adventure waiting for them around every corner!

However, adventure proves to be more elusive than she’d expected. Despite this, Pinkie will find adventure, and nuisances like lucky breaks and common sense will not stop her.

Set in a steampunk universe inspired by the game 80 Days. No knowledge of the game is required to enjoy this story.

Written as part of horizon’s 80 Days in 16 Days Challenge.

Why is the sky blue? How are gemstones formed? Why are there so many different types of apple? How can we tell what is underground without digging? Can friendship help wild animals? How can a lake explode?

An open-ended collection of science-themed shorts, which can be read in any order.

Long ago, Commander Hurricane set an example that still resonates with all pegasi who fall in love with their ground bound kin. Every pegasus knows the story, the tradition is deeply engrained and held dear to their hearts.

Now, if only Twilight could curb her curiosity long enough to enjoy and appreciate just how important she is to Rainbow.

Pre-reading and editing assistance by Melon Hunter and Timaeus.

Art originally by ELZZombie

Princess Cadance wakes up to care for Flurry Heart in the middle of the night, but notices something. She's growing. This makes her realize her little baby isn't going to stay little for very long, and thinks ahead to all of the wonderful things yet to come.

Cover Art and Inspiration by the Magnificent Ravvij
Spanish Translation by Spaniard Kiwi

This story is contained in my book "Dash Tries to Win Your Heart and Other Short Pony Stories"

If you have interest in purchasing this non-profit book, check out my online store at this link: https://www.lulu.com/search?adult_audience_rating=00&q=flutterpriest

Long ago, the founders of Equestria built a magical portal on sacred ground, hiding their greatest secret on the other side. Generations of leaders stepped through the portal so that they might emerge as the equal of their forebears.

Celestia and Luna were the last to enter. For a thousand years, the portal lay forgotten, its purpose lost.

Luna thinks it is time that Twilight learn what it means to rule.

There is now a Spanish translation of this story, courtesy of Spaniard Kiwi

Shining Armor is an eager young officer in the Royal Guard, fresh out of the West Hoof Military Academy. When his mother asks him to help family friend Vinyl Scratch deal with an overenthusiastic admirer, he jumps at the chance to aid a damsel in distress. Perhaps he'd have second thought if he knew just how much of a mess he would be getting himself into...

There is a hidden village deep within the untamed forest surrounding Neighagara Falls. Should one ever journey to this village, those who live there will welcome them for a simple price: love.

When the village accepts a new family from Cloudsdale, a not-quite-altruistic pair of changeling siblings offer a young filly friendship and a chance to find her place in the strange village she hopes to call home.

New cover art done by Arcticwaters.

Amethyst Star used to be Ponyville's top organizer. Everything from balancing the Mayor's schedule, Nightmare Night, and even Winter Wrap-Up were dropped on her desk. When the mess ups and the mistakes started to pile up, however, she was only too happy to pass the torch to the new resident librarian.

But, with Cranky and Matilda's wedding under her belt, she can't help but wonder if she threw in the towel a little too early . . .

Good thing there's a pair of friends, dancing around their feelings for one another, that could use a little matchmaking. Amethyst just might be the perfect mare for the job.

Cover art by the illustrious Rossby Waves.
Edited by Jondor and Melon Hunter.
Preread by auramane, Crystal Wishes, and Carabutt.
By special request, pre-preread by Tchernobog