Equestria is growing, and magical savant Twilight Sparkle is disgusted by the crime and corruption this change has brought. Her life is changed forever when she discovers the Death Note, a notebook with inexplicable and deadly powers. She uses this book to pass judgement on those she deems unworthy of life, aiming to create a perfect world free of crime. But when the two Princesses put their best pony on the case, a mysterious detective known only as L, a psychological game of cat and mouse erupts between the two.
Comments contain spoilers. Artwork by blu-red, opening by Anon3mous. Now with its own TV Tropes page.

A sleeping Rarity mysteriously appears in her friends' beds, and nopony knows how or why. Her friends are determined to discover the truth behind Rarity's night-time snuggling spree.

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.

In high Canterlot, there is a pony who is a Prince, but not an alicorn. His friends are what his wealth and splendor can buy. His pride is his name: Blueblood. His vanity and arrogance knows no bounds, his aunt has no idea what to do with him, and his bubble of power and prestige remains secure.

But before that, he was just a very small pony in a very big house, with much life still not lived. This is the story of those days, and all that came after.

After being shipwrecked in Illyrimane, Applejack disguises herself as a stallion so she can make her own way into the world and serves the Duke Spike, who sends her to woo the Lady Rarity for him. Applejack is soon shocked to discover that the unicorn has fallen for her instead!

How will she untie this tangled knot? More importantly, how will she win the dragon she loves when he thinks she's a boy?

Based on William Shakespeare's play Twelfth Night.

Matthew Williams, a citizen of New York City, leads a pretty good life, an alright job, a nice place. Sure, he has dreams and aspirations like the normal humans of the earth, but he was rather content at the moment. That all changes, when six ponies drop right on his head, and soon finds himself in a variety of situations that will spin his life in all different directions.

Rated PG-13 for Language, Violence, Mild Crude Humor, and Some Sexual Content.

Princess Celestia is in your bed, and you don't know why: what do?

Cute, funny, and short. Have fun reading!

Proofreading by RaylanKrios.
Now with audio reading by CaptainBron3y
Second audio reading by MeloncholyIguana.

Based on this story:
Princess Celestia is (still) in your Bed
Princess Celestia Has Stolen All Your Bed Sheets
Drunk CelestAI Is In Your Bed
Fimfic Authors Are In Your Bed
Princess Celestia is in Your Washing Machine

This is an idea that wouldn't leave my head, inspired by Fairy Slayer's "Mommy Nearest," Aldea Donder's "Alicorn," SoundofRainfall's "Play" and RainbowDoubleDash's "Lunaverse"

Alternate Universe: Instead of Twilight Sparkle, Princess Celestia made Rainbow Dash her personal student instead! Follow her through the events of the 1,000th Summer Sun Celebration. A reimagining of "Friendship is Magic"

My Little Dashie by ROBCakeran53 left many wondering 'What happened next?', ty500600 took the initiative to give the story an ending, to grant closure to all those saddened hearts. The ending gave closure, as intended, but still left the readers with many questions, myself included. I have taken the liberty to answer some of those questions in this epilogue/story.

Note: In this story, ty500600's Epilogue is only true to a degree, yes it happened but it happened differently.

Dad has been in Equestria for five years now, but what has happened during his time there? What will happen in the future?

This story was initially going to be just an epilogue but I've put some thought into it and I wish to continue the tales of Dad and Dashie.

My Little Dashie : http://www.fimfiction.net/story/1888/My-Little-Dashie

My Little Dashie : A Sequel : http://www.fimfiction.net/story/5284/My-Little-Dashie%3A-A-sequel

My Little Dashie: First Bath : http://garuuspike.deviantart.com/gallery/#/d4ckqll

When your life is as dull a gray as the world that surrounds you, the mundanities can make it all seem meaningless. Sometimes all we need is a little color -- or six -- to reintroduce us to what truly makes life worth living.

*6-16-2017 Edit, added Rainbow Dash tag because it triggered knighty.*