Star Swirl never did write a time travel spell.

To keep history intact, Princess Twilight and Luster Dawn must go back in time to place a scroll in the Canterlot archives where it can be found by the younger Twilight Sparkle. But when they run into other ponies in the past, will they do more harm than good?

An entry in the Most Delightful Ponidox.

Thanks to Solstice Shimmer, MitchH and Oliver for editing and assistance.

Cover sources: this + this + this.

Twilight Sparkle wants to reestablish her old rapport with Princess Celestia - the close relationship they had when Twilight was the Princess’s personal student. But life moves ever onward and the connections they had in the past will not be enough for the alicorns to overcome the challenges that lie ahead. To make it through their shared trials and revelations, Twilight and Celestia will need to grow beyond their existing bonds and become much more than faithful student and immortal mentor.

A month after her return to Equestria, Princess Luna flies forth to fight a sea monster.

Cover art from the gallery of Cannibalus.

Spanish translation, by SPANIARD-KIWI.

This story is a sequel to For Want of a Horseshoe

Shining Armor's younger sister is many things: studious, awkward, devastatingly brilliant, neurotic, and occasionally, the rebellion's unwitting premier magical researcher in the fight against Nightmare Moon.

What she is not, is an alicorn from the future.

No, this Twilight Sparkle is not Shining Armor's younger sister.

That doesn't mean he's not going to tease her mercilessly, After all, she is still Twilight Sparkle.

A side story to For Want of a Horseshoe. The events herein happen concurrently with Chapter 7. The other stories in this series can be found below.

1. For Want of a Horseshoe
2. A Big Brother's Duty <-- you are here
3. Healing

Princess Celestia is reunited with her former student, almost.

Pre-reading by: Cryosite.

[12/14/2014] Revisions to Chapter 4 and onwards. More info here: http://www.fimfiction.net/blog/416547/fixing-i-think-i-can-remember

Celestia is settling into being a princess. It’s a lot of work, but luckily Star Swirl is a big help, even if Luna isn’t.

Then she wakes up and over a thousand years have passed. Her sister was banished to the moon and came back, Star Swirl is long gone, and Celestia apparently has a small purple alicorn student.

What’s going on?

Not long after Tirek's defeat, Twilight has begun suffering from a medical condition that shouldn't be able to affect ponies and her life depends on Luna. How will both of their lives, and their relationship, be affected during the days and nights together as Twilight searches for a way to reclaim her independence?

* This is a TwiLuna story.
** Cover art by CaptainPudgeMuffin (Commissioned for this story.)

Traducción al español de mi fanfic por SPANIARD KIWI: Todos Para Una, y Una Para Luna

Her coronation over, Twilight has some doubts about stepping into the horseshoes of a princess. Little does she know a greater challenge is rushing to meet her, building like a storm on the horizon, bringing with it an endless night.

(Featured on EqD.)

Princess Luna has always been more at home on the battlefield than in a palace. The reasons for that were left mostly unexamined, for things are what they are, so why try to fight fate? Fish do not fly, birds do not swim, and the princess of the moon cannot be anything other than what she is. But when a dream reveals that in this modern age the impossible can become reality, she begins to examine who she is in an all new light.

A story about identity, discovery, and love.

This is technically set in the same world as Over a Cardboard Sea, but the two stories are only vaguely related and you do not have to read one in order to appreciate the other. It also takes place in the same world as Either Or and shares some themes with it.

Gorgeous cover art by blankflank.

For more than a millennium, it was believed that the princesses were immortal. But as time marched ever forward, it become clear that even the alicorns won't live forever.

Princess Celestia is at the end of her life.

While Equestria must find a way to cope with this new reality, those that are truly suffering are those closest to her. None are struggling as much as her sister, Princess Luna. Not only is she forced to handle the duties of ruling Equestria and taking care of the transition, she must also cope with the imminent death of her beloved sister.

Image source.

Warning: comments may contain spoilers.