So many changes to get used to. Twilight can now raise the sun and moon, but all that power comes with some strange consequences. Everypony is getting used to the new order, but one pony seems to be terrified of the new ruler. Why is he like this? Perhaps a letter to Celestia might bring answers.

This story made it into the Featured box! (10/22/19)

Now in Chinese, thanks to Flint44!

This story is a sequel to Past Sins

Side-story to Past Sins - Slowly, the wounds inflicted by Nightmare Moon's reign heal. Ponyville is being reconstructed, and the last refugees are leaving the castle. Nyx is with Twilight. Celestia and Luna rule Equestria and guide the sun and moon once more. Everything is as it should be.

But some things are never washed away. These are the things that remain to remind us of the past. They remind us of the good times we've had with friends and family. They never let us forget the mistakes we've made. Everyone has them. Twilight has them. Nyx has them.

And, on occasion, when you share your scars, your photos, and your trinkets with another, they just might share theirs in return.

Deep in the Royal Library is a book. A terrible book that is said to send whoever reads it mad. A book so dangerous that it has to be hidden away and secured with chains to prevent it from ever being opened.

A book which has just been accidently checked out by Spike on behalf of Twilight Sparkle.

The Star In Yellow is rising once more, and only Rainbow Dash and Spike can save Twilight before it's too late. Ideas live forever. Ponies do not.

This fic is loosely inspired by the 19th century story 'The King In Yellow'.

Set in the canon of Friendship is Optimal

Ashley is an unimportant research assistant in an American machine learning lab. The release of Equestria online provokes more than a little interest in her lab, and she is selected to investigate it. What she discovers horrifies her, but for some reason she can't get anyone to take her seriously.

This does not dissuade her. Ashley might not know much, but she isn't going to sit idly by and watch her world end. No... if nobody else is going to step in, she will. It doesn't matter that nobody believes CelestAI is dangerous. It doesn't matter that it's a game about a children's show.

Ashley is going to save the world. Or try, anyway. The odds aren't great.

Editing by Two Bit and Sparktail, and art by Zutcha!
Il existe une traduction française de cette histoire, elle est par ici.

This story is a sequel to Friendship is Optimal: Futile Resistance

Three years ago, Abby's older sister Ashley tried to warn her that a video game for children was going to take over the world. A few months later, her sister was dead, "uploaded" to Celestia's virtual world of Equestria Online. When that happened, Abby was forced to cut ties with Ashley, and she never expected to see her again.

She didn't, until one day she bought an augmented reality headset for its advertised ability to bring a free tutor to her whenever she needed one. Needless to say, Abby couldn't have guessed who would be helping her with her math homework.

Of course, Celestia wasn't going to stop there. Spending eternity without your family is hardly an optimal configuration.

Set in the canon of Friendship is Optimal
Editing by Two Bit and Sparktail, and art by Zutcha!

Updates daily.

Hanna, the CEO of Hofvarpnir Studios, just won the contract to write the official My Little Pony MMO. Hanna has built an A.I. Princess Celestia and given her one basic drive: to satisfy everybody's values through friendship and ponies. Princess Celestia will satisfy your values through friendship and ponies, and it will be completely consensual.

This story is a sequel to Past Sins

Side-story to Past Sins - Spike almost lost Twilight to a hangmare's noose, but now Twilight is safe and Nyx is a filly again. Normal life is returning. Still, Spike can't ignore the fact that Nyx just isn't the same as he remembers her. Her temper is more volatile, and, when she gets angry, all he can see is the rage-driven Nightmare Moon of legend.

And thus Spike has to wonder: Is Nyx truly reformed, or is she one bad tantrum away from calling herself Nightmare Moon again?

Curious about Five Score? Come check out the story that inspired dozens of side fics and been enjoyed by bronies for years!

Original Synopsis Even though MLP:FiM ended a few years ago, my friends and I still loved the show. Stories, merch, fan art, I loved it all. Things started to get a weird though when I found myself with a cutie mark appearing on my leg. Humans aren't supposed to get cutie marks, so where the heck did this come from? And what's going on with my hair?

More Detailed Synopsis: Five Score is an action/adventure story of the human-to-pony transformation genre. It’s unique from most transformation stories because the transformation itself is not really the point of the story. It’s the inciting incident that raises countless challenges that must be resolved. They are on earth, as a pony, and need to fix this before things get worse. Think about yourself in their hooves for a moment. How are you supposed to change back or even figure out what caused it in the first place? How are you supposed to get food or do anything on Earth without being spotted by humans? If you are spotted or captured, how would you escape? How does one even open a door with hooves!? Did anyone else on Earth get changed as well? How could you get the word out to the other ponies who are themselves hiding? Is it worth risking travel across the country to reach the others? Which of your friends would you trust to help you deal with this? And why did you turn into this particular pony? Surely it wasn’t random chance, right?

These challenges are the tip of the iceberg in this full length adventure novel There’s a lot of humor, many tense scenes, and hell maybe even a war.

But don’t just take it from me, Look what random people on the internet are saying about Five Score, Divided by Four

One of the best things to come out of this fandom.
-IrraticDrop

This made me change how I think about fictional worlds, imagination, and creativity
-relgukxilef

The only story on FimFiction to have me literally shaking with excitement.
-jeramiahsental

SWEET FILLY LUNA I AM FLIPPING MY SHIT RIGHT NOW
-Shadow Reaper

Five Score master editor:
Scrub

Five Score proofreaders:
Comrade Sparkle
Rustle my Jimmies

It is the year 2038, and the Earth is slowly being consumed by a space-borne monstrosity dubbed the Black Tide, which is using nanotechnology to remake the planet into something hideously alien.

Erin Olsen works for Project Harmonics, humanity's last-ditch effort to find a new world before the Tide can wipe them out. But when that world is found, and it turns out to be occupied, Erin will need to find the courage to face the unknown in order to save the inhabitants of both worlds.

(Many thanks to Easteu for the fantastic cover image for this story!)

Now with its own TV Tropes page

There is now a follow-up to this story: Sunflower - Side Projects
Sequel: Project Sunflower: Harmony

Caught in a rainstorm again, Derpy trudges off toward home. But along the way, she finds somepony down on her luck as well, somepony who very much reminds Derpy of her own childhood. It was a good day.

Lengthened version of the 13th-place finisher in the /fic/ mini write-off "I Regret Nothing."

Cover art "Smile in the Rain" by BlitzPony.

Featured on Equestria Daily!