Twilight Sparkle failed her entrance exam, and the consequences were far more deadly than anypony could've predicted.

Where many ponies would see this as a terrible tragedy, a creature only spoken of in the darkest of legends sees the poor filly's fate as an opportunity...

Ever drank too much and woken up in a different place? I have several times. Ever woken up in a different body than your own? No, that one is new.

Hello, my name is Storm and I am a 24-year-old dude. Or I was yesterday, now I am some kind of filly and everyone is calling me 'Flurry Heart'. Everyone thinks I am 10 and that I am confused and traumatized. Probably doesn't help that I keep asking for a drink and am a bit lost with what's going on. I just hope that these ponies, frequent disasters and one scary pink pony don't kill me before I can go home.
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Now translated into Chinese by Aeri: https://fimtale.com/en/t/31675
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Credit for the Cover Image goes to SkyeyPony.
Link can be found here: https://www.deviantart.com/skyeypony/art/Flurry-Heart-908403193

Twilight Sparkle has spent months researching chaos magic, developing a new spell to unlock magic nopony has ever experienced before. But when something goes wrong with casting, Twilight finds herself turned into a Draconequus and unable to control her new chaos magic. If she ever wants to be a pony again, there is only one who can help her learn to control her new magic.

Of course, learning from Discord was never going to be simple. And after a while, being a draconequus doesn't seem so bad anyway....

Based on the concept by Lopoddity

Editing by DB_Explorer
Proofreading by Mac349 (Ch. 1-11), Trippy998, Just A Fabulous Cat (Ch. 1-5), Doctor Candor and skysthelimit (Ch. 1-11).

A thousand years ago in Equestria, Luna's frustration and desperation has been building for years and years as her social and political isolation grows, but just before Luna's jealousy and resentment can turn into murderous hatred against her sister, a new event triggars Luna's mental collapse and pushes her over the edge. When Luna by circumstance finds herself alone in Celestia's room she reads her sister's diary out of curiosity and discovers all of the disparaging criticism that Celestia has leveled at her over the years about how much of a nuisance Luna has been to her, but has been too polite to say directly to Luna's face.

Luna and Celestia had always supported and stuck with each other all their lives. Even when the common-ponies critisism and shunning of her was at its worst, the knowledge that her sister loved her kept Luna going. The realization that nopony, not even her own sister valued her or thought she was fit for the throne completely shattered whatever remained of her fragile psyche.

And so Luna just gave up...

She gave in...

If no one wanted her there...

Then she wouldn't stay there...

She would leave.

For almost a thousand years, the immortal Nightmare Moon has reigned over Equestria as Empress. To the average pony, Nightmare Moon is an overarching enigma whose rule is absolute and whose wrath is terrible. But to Twilight Sparkle, who as an orphan has never known her parents, the Empress is something else entirely. When the young unicorn is brought under the royal wing as an apprentice, she learns a great deal more about the supposed tyrant than she ever knew. But as Twilight is introduced to life with her new mentor, she is thrust into a world of political intrigue, conspiracies and secrets. Secrets that were never meant to be revealed. As allies and enemies plot against the very peace of the nation, will Twilight fall prey to the perils of her new position? Or will she prosper and find in Nightmare Moon the mother she never had?

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My eternal gratitude to my editor, LordOfTheWrongs, without whom Night's Favoured Child would not be the story it is today.

Now with added TVtropes!

The supernatural: Ghosts, zombies, werewolves, spirits... vampires...

Twilight Sparkle always thought that the supernatural was just a bunch of superstitious nonsense, just some scary stories to tell around a campfire. She couldn't have been more wrong.

After an occult ritual gone horribly right, Twilight finds herself among the ranks of these so called 'myths', whether she likes it or not. Due to the same force that changed her, dark shadows have begun to spread across Equestria, bringing to life these ancient fairy tales. And Twilight might just be the only one that can stop them...

For better or for worse, Twilight has been changed. Will she embrace this dark gift and become the hero Equestria needs, or will she eventually succumb to temptation and become the very thing she fights?

With some changes on Star Swirl's time spell, Twilight accidentaly gets trapped in the past. But after saving two fillies and enlisting them to be her students in magic, they go on adventures together to survive the ruthless world they live in. With new friendship and foes, they discover what it truly means to be family by choice.

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Now with the collaborative efforts of Angel Bunny, Fausticorn and soulwinds!
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Art by awsdemlp.deviantart.com
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People who I am in deep gratitude for offering help:
amacita
MidnightDancer
Skunktrain
Cerulean Starlight
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And FAN ART by 1110soulite!

We all know the story of how the Princess’ young student and five friends defeated Nightmare Moon and brought Princess Luna back to our lands. But what if the tale were false? What if the young Twilight Sparkle on the event of her entrance exam had not been rescued by Princess Celestia, but instead lost her mind among the power of her youthful surge and had to be sent away, far away before she could destroy all of Canterlot with her newfound power. Now the feral unicorn prowling the Everfree Forest only vaguely remembers her past, slipping away from constant terrifying attempts to capture her.

And she is beginning to remember what true power felt like.

Editors include: Peter, Justin, Featherprop, Mitch H, and Bad Horse
Featured on Equestria Daily
Reviewed by Chris on One Man's Pony Ramblings and by Paul Asaran on his review blog
Now with a TV Tropes page

Physical books are available on Lulu.com
Monster in the Twilight (Paperback) 272 pages
Monster in the Twilight (Hardback)

It should have been so simple, just make some friends, find the elements and beat the villain that tries to make the night last forever, then find out she's Celestia's actual sister and absolve her as they hug… Well, perhaps not simple per say, but expected.

So then why when they defeated Nightmare Moon did Luna ignore her sister Celestia? And why did she instead hugged Twilight as if she was happier to see her then her sister? Why was it Celestia who soon after groveled and begged Luna for forgiveness, rather then the other way around? And what's with this godmother thing?

For that matter, what else changed?

After a horrible accident, Luna is forced to resort to drastic measures in order to save Twilights life. While unconscious, Twilight meets a powerful stallion who claims to be responsible for death, sleep, and all other states of unconsciousness. He turns out to have quite a tale to spin for her, and what he reveals may well be the undoing of one thousand years of harmony.

And so, the rewrite has begun.