Twilight Sparkle is successfully fulfilling her destiny as the ruler of a kingdom somewhere. Although she has continued to write to Princess Celestia consistently, the latter has distanced herself in recent years. Twilight writes one final letter to her teacher.
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Personally, I prefer the first chapter on its own, but the story does continue in the rest.
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Part 4 in progress!

Nearly thirty years in the future, the Mane Six have married and settled down to raise families of their own. When Andromeda, Twilight's daughter, rediscovers a familiar time-traveling spell, she makes it her mission to fix what was once unfixable. The spell goes wrong and she and the other sons and daughters of the Mane Six find themselves in the past (before the events of Twilight's alicorn coronation). Separated after the jump, they must all find each other in time before they are discovered, or else they risk changing history and even erasing their own existence.

(NOTE: These kids are not shipping children. They have dads, but even I do not know who they are. None of the fathers will be named or physically described in this story because the focus on my story is on the children. Please respect my decision of neutrality by not "guessing" who the dads are. The designs of the children were influenced by their mothers and nothing else. Thank you all for understanding.)

(Cover art by LinaPrime)

This story is a sequel to Millennium Wake: Part 1

A thousand years of magical sleep have stranded Rarity in a future not of her own making. Her friends and loved ones are long gone, leaving behind only enigmatic echoes, twisted replicas that offer more menace than hope. As she seeks to move on, Rarity has managed to make new friends, but how far will she go to ensure their survival?

This is Part II of Millennium Wake, be sure to read Part I, written by Chaotic Dreams, first.

Cover art by DShou

Editing by Zerzviel
Prereading Anarchy Archer

This story is a sequel to Off The Edge Of The Map

When Twilight is sent with Luna on a diplomatic mission to Draconia, they quickly find themselves somewhere that doesn't appear on any map, and Luna is lost in more than one way...

Thanks to RBDash47 of Pony Fiction Archive for formatting it for submission.
Title image by Valcron

Tremendous thanks to Illya Leonov and Scribbler for the Audiobook version.
Now with a Spanssh translation by SPANIARD KIWI: https://www.deviantart.com/spaniard-kiwi/art/Apoteosis-2-3-857110089

Waking up in an alternate universe in which you are a supervillain can be hard.

Finding out your friends are rebels trying to kill or overthrow you isn't very easy to deal with either.

But trying to solve the situation? That's a real horn cracker.

Rainbow Dash unleashes a new stunt she created for the latest Wonderbolts tryout session. Feeling confused about her chances at becoming a professional stunt flyer she returns to Ponyville and await the impending news. But things aren't what she exactly remembers.

Years have past since the changelings were driven away from Equestria, giving room for peace and love. Suddenly, Twilight is captured in the middle of the night, and is brought to the hooves of Queen Chrysalis. Seeing that she has captured the element of magic, she is determined to gain her revenge against both Twilight and anyone that has ever wronged her.

Using her dark magic, the queen transforms the unicorn into a horrifying creature. Will Twilight hold on to her sanity, and more importantly, her devotion to friends?

Or will she slip into the darkness, and lose all hope.

Props to chaos2012 for bringing me this idea. The story is mine though

Evilpresident is also onboard as a Pre-reader.

Okay, new cover art! This time it was actually made for the fic, so credit goes to BronyInvestigator
I cannot thank him enough.

Luna's isolation and difficult reentry into Equestrian life has left her without the confidence to communicate with the ponies around her. Especially the one pony she most wants to talk to. Celestia is angry, Twilight is upset and it's all her fault. Then she has an idea... She'll invite Twilight into her dreams. What could possibly go wrong?

Finding herself with wings and unusually powerful magic, Twilight Sparkle proceeds to have breakdown after breakdown, until with the help of her friends, she confronts Celestia and Luna about it... And learns that she's a far more important little pony than she ever imagined - for all the wrong reasons.

Awesome painting by Drezzer can be found here!

20 megapixel version is here (10MB JPEG, 210dpi strangely, 24"x20")!

Thanks, man!

During her entrance exam, Twilight's powers goes far out of control, leaving Celestia a shell of herself and Equestria in ruins. Now Nightmare Moon is free, but even she can't stop the Tyrant Filly. She flees through time and space, finding herself in an Equestria familiar to us but odd to her. Can the Mane Six help her stop a Twilight out of control?

Fanfiction.net link here!
Weekly featured fic in Authors Helping Authors group

TV Tropes Page, with sincere thanks to DrTempo.

Cover art from here.