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

I am Twilight Sparkle. Newly crowned Princess of Equestria. Element of Magic. Student of the magic of friendship under the tutelage of Her Royal Highness Princess Celestia.

Female. Lavender in the coat, indigo in the mane, with purple and pink stripes. Razor straight mane cut, with a little bit of a flip... shimmering ethereal mane and tail possibly pending. Large wings, lavender, barely used.

Beloved daughter of a scientist and a stargazer. Sister to the Captain of the Royal Guard. Sister-in-law to an Empress.

Best friend to five ponies plus one dragon in Ponyville.

Or am I?

Have you ever woken up as a vegetarian cartoon pony? I have, and she won’t shut up about it. I’m stuck in her body as our minds swap control and our memories blur. I can’t seem to do anything right, and it’s even worse when she’s in charge.

Now, we’re in a back and forth war for control of her body. I just want to eat meat again, and have a little personal space. She’s convinced I’m hitting on her friends and trying to score. I’m not sure I can survive the rest of the day, let alone until we fix this.

Edits by: Selbi, Abcron, Breath of Plagues, Refro, Jaestring, The Parasprite, Starbound Gurren
Pre-read by: SkeeterTL, Solidfire, Penjacker, TypewriterError, Pearple Prose
(It took all of them to corral my insanity.)
Cover art by Tsitra360
V1.1-Rated teen sex for strong innuendo.
V1.2-Pinkie Pie now enforcing RIAA guidelines.

Canterlot... For centuries, Canterlot was the shining gem of Equestria, the pinnacle of pony society. Now, it’s a reminder, a bleak and monolithic warning to the world. 

Changed by the chemical and technological poisons that plague the mountain, an abomination of nature, I wander the greatest disaster Equestria has ever seen. 

... I will escape eventually, and when I do, I hope my friends still see me as Twilight Sparkle, and not the monster that hides among the ruins. 

Important notes about the status of this story below

Ever wonder what Equestria's past was like? How did Celestia and Luna come to rule? And what made their rule a time of peace? Well I may have had something to do with that.

Name's Zack. I appeared in Equestria over 3000 years before the show "My Little Pony: Friendship is Magic" takes place. For whatever reason, a few months after my arrival, I was transported to the modern day Ponyville. What happened? Are the Princesses mad at me for disappearing like I did? I only helped establish the greatest country this world has ever seen and then vanished.

That... sounded more innocent in my head. Uh oh...

A/N:
Just to let you know ahead of time, this is a ponified human, 1st person story. If you don't like it, don't bother.
The cover art was made by me, with the exception of the night sky bg (Wertyla).

Edit August 2nd 2016: I want to rewrite this story from the beginning. Read this for more info and tell me what you think.

Edit May 24th 2017: IMPORTANT! I am currently rewriting the entire story and with that, many details and aspects are set to change. As such, it will essentially be an entirely new story, meaning this version of Past, Present, and Future is technically Cancelled. There will be no more chapter updates until I finish the rewrite, meaning that this version will not have a proper ending. If it's requested enough, I may do some kind of Cliffnotes version of how the rest of the story was meant to play out, but for right now just know that if you start reading this version, you will not get an ending. I will post an announcement chapter on this story and Blog on my profile when the writing nears completion and I'm about to start uploading chapters. Thank you for all of your interest in my first public work of fiction. It really means a lot to me.

Commander Shepard remembers firing the crucible. She remembers she had to make an important choice. She remembers good friends, a lover, and plenty of loyal crewmen.

She just can't remember what her choice was. What the threat she was striving so hard to end was. Or what the faces of the most important people in her life look like.

She also has no idea how she wound up in the monster filled forest she's come to call home for the past eight months. Or how she picked up a snarky A.I. making its home in her omni-tool.

Princess Luna finds more than a friend in her sister's student, and Twilight Sparkle gets a chance to study the moon and stars far closer than she ever dreamed possible.

An ongoing series of slice-of-life snapshots. Expect a castle's worth of clop-free d'aaawww.

These stories are in continuity with The Rustic & The Romantic and If the Flight Suit Fits.

Now featuring cover art by the inimitable Cerraka (formerly xaztein / crenair)!

Almost all chapters originally written as separate entries for flash-fic blog Thirty Minute Ponies (TMP). I highly recommend a visit to TMP if you're looking for some of the best 1000-word gems in pony fiction. Many thanks to TMP for inspiring me to write!

Plan C - In which Cadance learns that Celestia is the chessmaster, and that her backup plans are the most fun of all.

Game, Set, Match - Twilight tries her hoof at arena combat. Victory or defeat, she's sure to end up a winner with this opponent.

Countdown - Luna swore she'd never do this again, but there's something about that little librarian from Ponyville that tests her resolve.

Twilight Hustle - Rarity's heard some steamy rumors about Twilight and gathers the girls to dish juicy gossip.

All the World’s a Stage - Luna had a wonderful evening with Twilight and sang her heart out about it. Oh, and she might have left the door open.

Every Morning After - Twilight and Luna shared a wonderful, magical night; unfortunately, immortal Princesses sometimes forget about thousand-year-old laws which could ruin the mood ever so slightly.

Names - Luna's had many more names and titles than "Mare in the Moon", and Twilight discovers which of them meant the most.

Great Minds Think Alike - Cadance and Celestia's plan for Twilight and Luna comes to a head, slightly off schedule.

Third Time's the Charm - Twilight's Nightmare Night costumes aren't cutting it. Now Luna's in town, and that may change her opinion on what makes a proper costume.

Monster - Ponyville's been through the ringer lately, but whose fault is it really?

Impossible - Luna's having a bad night, and Twilight came all the way to Canterlot to do something about it.

Early Observances - If you're going to interrupt Celestia's sleep, you'd better have a very good reason.

THAT Letter - Luna and Twilight have to tell Celestia how serious their relationship has become, and they decide to send a letter. Surely they couldn't disagree about how to make such a simple announcement - could they?

Your Turn - Twilight and her friends reveal some personal secrets, and Twilight's is life-changing.

Trembling Joyful Whispers- The Big Day is here for Twilight and Luna! Hear the congregation's comments as events unfold.

The Power Vested in Me- The Big Day is here, but Luna and Twilight are so very, very far from ready. Will their fears get the better of them?

Awkward - Twilight and Shining Armor have dinner with their parents along with Luna and Cadance. They'll probably wish they'd ordered takeout instead.

Absence - Luna deals with a thousand years of angst all at once; maybe she just needs a gentle helping hoof to make sense of it all.

You Were There - A quiet night between Luna and Twilight is almost derailed by a lesson in ancient mythology.

Between Sun and Moon - Luna reads a bedtime story with which she is all too familiar.

Postcards from the Edge - Twilight leaves to study abroad for three months; in her absence, Luna has a stack of mail to open.

Insert Princess T into Slot S - Twilight want to be Princess of Something. Careful what you wish for!

Ups and Downs - Newly-crowned Princess Twilight needs flying lessons. Careful whom you ask!

Amethyst Throne - Princess Twilight is pretty sure she's seen these petitioners somewhere before.

TD, the human first seen in No, I am NOT a Brony, GET ME OUTTA EQUESTRIA!!! has been in Equestria for a little over a year now and he's just beginning to fully adjust to his life there. However, when he wakes up one morning to discover that five of the Mane Six have switched cutie marks, he endures a significant change when he helps them out.

He is less than pleased.

Edited wonderfully by Strike89

Buy a print copy here!

Terrence found himself lost in a sea of solitude while living his dream. Until a chance opportunity forces itself upon him. Now he finds himself in Equestria, where the horses and ponies he grew up raising are now sentient and find him to be... rather odd. Except one. And she finds him to be her one chance at happiness.

Author: This is my first fic EVER, so yeah.
Props go to tallestbrony, he helped me through all this.

What does a Princess do when she is immortal, ruler of a kingdom and utterly alone? When there is no one to call your own or friend to turn to. This is the problem facing Princess Celestia. She has no real friends except her younger sister Luna. When that isn't enough, one event will change her life forever. Come join Celestia as she finds what she is longing for in the most unlikely of places.