There is no such thing as a gut feeling, not really. If you suddenly start to feel afraid for no apparent reason, it's very unlikely to be anything serious. But it doesn't make it feel any better does it?

Twilight is up burning the midnight oil again, when suddenly every sense she has tells her that something is terribly wrong. There can't be anything really wrong though, not in reality.
Can there?

A short experiment in atmospheric horror.
Featured in the Royal Canterlot Library on 26/04/19
Now featuring readings by ColonialPone here, and by MrSnarky here.

"My name is Lyra Heartstrings, and you will not remember me. You won't even remember this conversation. Just like with everypony else I've ever met, everything I do or say will be forgotten. Every letter I've written will appear blank; every piece of evidence I've left behind will end up missing. I'm stuck here in Ponyville because of the same curse that has made me so forgettable. Still, that doesn't stop me from doing the one thing that I love: making music. If my melodies find their way into your heart, then there is still hope for me. If I can't prove that I exist, I can at least prove that my love for each and every one of you exists. Please, listen to my story, my symphony, for it is me."

Cover pic by Spotlight: askspotlight.tumblr.com

After an expedition into the Everfree Forest ends in disaster, Applejack and Rainbow Dash take refuge in an abandoned cabin until morning.

This is probably a poor decision, but it's only one night, after all. How bad could it be?

Equestria has been through a lot lately. An evil alicorn escaping from the moon. A mad spirit of chaos turning the world into his plaything. An invasion by evil shapeshifters. A monstrous lord of fear returning from exile. An attack by a vast, unstoppable mass of vines.

But nothing had yet compared to the ravages of Lord Tirek, who stands virtually unopposed in his quest to absorb all the magic of Equestria, especially now that even Discord, the Lord of Chaos, has betrayed the ponies and decided to help him.

Unopposed, that is, except for a single pegasus filly. Her name is Cozy Glow. And though neither of them realizes it yet...this is going to be the start of a beautiful FIENDship.

This story is a sequel to A Stitch in Time

Having discovered the message left for her by Star Swirl the Bearded in the distant past, Twilight once again finds herself caught up in the middle of a struggle against forces far greater than herself. In order to even stand a chance she'll need to travel further and wider than she ever has, and forge some unlikely alliances with old enemies. All to bring down the powers that have manipulated and shaped her entire life, and retake control of her own future.

The conclusion of the Time Loop Trilogy, which began with Hard Reset
Available in Spanish thanks to dgs1993
Series TV Tropes page

This story is a sequel to Hard Reset

After the events of Hard Reset Twilight's life and mental well being are slowly returning to normal. Her recovery is cut short, though, when a letter arrives informing her that the time loop spell she cast is causing severe damage to space and time itself. In over her head, Twilight tries to summon anypony who will know how to fix it. The pony she gets is the last one she ever thought she would meet... and nothing like she expected him to be.

Available in Spanish thanks to dgs1993
Series TV Tropes page

Twilight isn't having a very good day. An experimental spell blew up in her face, an army of changelings is attacking Canterlot, and she just died. Yet somehow, it looks like it's going to keep going downhill from here.

Given the chance to correct what's gone wrong, Twilight swears she's going to fix all this even if it kills her. Which it will. Frequently.

Cover art by Pixel Prism
Spanish Translation
Series TV Tropes page

Anon takes over Spike’s job of transcribing Twilight’s friendship reports. He does exactly what you’d expect.

Companion fic containing Celestia’s replies up to Letter 120 - To: Anon, From HRH Sunbutt written by Snow

This story is a sequel to Dear Princess Sunbutt

When Anon takes the liberty to inject his particular brand of humor into Twilight's friendship lessons, Celestia feels the need to respond, more often than not.

A somewhat unofficial sisterfic to 2Merr's Dear Princess Sunbutt

There may not be a response to every letter, and letters 1-11 were taken from my comments in said sister-story.

Please support 2Merr's story too if you like this one. This is written with encouragement of the original author.

(Note: Picture used without permission from Derpibooru. Upon request it will be promptly removed.)

EDIT: Apparently someone's done a reading of this and its sisterfic over on Youtube! Why does nopony tell me these things.