This story is a sequel to Princess Celestia The Changeling Queen: Stories Behind the Mask

At the Royal Wedding, Chrysalis and the Changelings were revealed to all of Equestria.

But another mask was torn away that day. A mask born for a thousand years. A mask created on one promise. A mask, that has become synonymous, fused, to its bearer.

A mask that when ripped off, causes Twilight, her friends and Luna to question everything they ever knew about the one pony, one very important pony.

At the Royal Wedding, the meaning of the phrase 'Princess Celestia' changes forever.

NOTE: Chrysalis is NOT Celestia!!! That'd be impossible to pull off.

Credits to: Plainoasis for the design of the cover art
Note 2: Original cover art here: https://angelea-phoenix.deviantart.com/art/Contest-entry-Changeling-Celestia-337023552

Pre-read/edited by Zervziel,
Blankscape,
FinalFan,
Courage Fire
Aurora Borealis

Side Stories to this can be found: here.

An audio-reading on youtube up to Chapter 21 is up by StraightToThePoint Studios. I'm aware there are others but this is the nearest complete one: [embed]https://youtu.be/X3eMW673CSY[/embed]

There are also 2 print versions of Princess Celestia:The Changeling Queen. Nonexistent Publications run and Ministry of Image's run.

Contribute to the TV Tropes Page (thanks to Babs_Seed72 for getting it up)

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

Celestia sends Twilight a very special book that contains some of the oldest and most powerful magics known to ponykind. Included in the book is the way by which alicorns are created. Twilight visits her teacher in Canterlot to learn more, but gets much, much more than she bargained for.

I wasn't really sure what to tag this story. I chose the adventure tag because I see this story as an intellectual adventure for Twilight. Let me know if you think it should be something else and I'll change it.

Big thank you to GorisTheDeathclaw (my editor) for putting up with my typos and grammar fails, and for helping me in writing this. Also edited by my brother, but he's not worth mentioning.

Midnight is a changeling... who works and lives at the Golden Oaks Library with Twilight Sparkle herself. It wasn’t a very smart decision, but the reformed changeling needed a place to stay. Now she’s building herself a new life in Ponyville, but as the events of season three play out it gets increasingly harder to keep her identity secret. Combine that with her new friendship with Lyra and Bon Bon and sporadic appearances from the Doctor, can she keep her cover and defend her new life in Ponyville?

Derpy Hooves is secretly a changeling.

Nopony particularly notices, or cares.

(New 9/15/19: Spanish translation by Spaniard Kiwi! Thank you!)

Our little ponies find themselves at humanity's interstellar back doorstep. Having some idea of the ongoing problems humans face when it comes to friendship and harmony, one pony in particular takes it upon herself to throw an introductory party right away. What could be a better idea than to wage party with the help of some multi-ton war machines the wayward Equestrians have found?

Immediately following the events of Appletheosis, Applejack must relearn her place in the world as the new Princess Mara of Equestria. Meanwhile, her family and friends have their own troubles with the changes. Through it all, little Merry May, first in the service of her goddess, tries to hold things together and keep everypony sane and happy.

I won't tell you what to do, (this time) but reading Appletheosis first is highly recommended. The Shadow of the Goddess also provides useful background and will become very relevant in later chapters.

==Originally written spring 2011== Equestria Daily Post==
GLaDOS is free of Chell, free to continue testing, when she discovers a portal gun Wheatley tried to repair with duct tape. When the portal gun catastrophically fails, the enrichment center, GLaDOS, and Chell are literally dropped in the middle of Equestria. The mute test subject soon finds the world of ponies far more welcoming than the human world. But GLaDOS sees possibilities. Let the testing begin... for science.

For most of Applejack's life, she didn't know what she was. True, she understood who she was well enough.
But ponies don't change shapes, nor do they get strength from love.
Applejack never thought too hard on it... until the events of a certain wedding brought about some harsh realizations.
Now, with Equestria still reeling from the surprise attack, will Applejack manage to come to terms with what she is? Will she even be able to keep her secret safe?
For if the royal guards don't get her first, the conspirators in the shadows just might...

Image provided by Heilos -

Applejack's life is turned upside-down after she suddenly inherits the full powers of a goddess. She insists that it isn't a big deal and that she's the same pony as always, just bigger. Meanwhile, everypony else starts making demands on her and placing expectations on the 'new princess'. When the constant stream of petitions and gawkers starts interfering with farm work, Applejack reacts a bit strongly. Luna, fearing the worst, is determined to rescue Applejack from corruption, further irritating the farm pony. Will Applejack accept her destiny, or is destiny what you make of it?