Princess Luna has been through a tough life. A thousand years ago she could not control her jealousy, envy and rage and became the infamous Nightmare Moon. Then, she spent a thousand years on the moon, only to return, still as Nightmare Moon.

However, despite everything she has been through, her return to Equestria was warmly celebrated. Princess Luna is a pony that everypony loves, and she is completely forgiven for everything that's happened.

So, when Princess Luna is suddenly and unexpectedly killed, the entire nation of Equestria is thrown into grief and despair. Ponies everywhere find themselves unable to deal with the tragedy.

But the worst hit is Princess Celestia herself...

Finally, after years of begging, Celestia gives Twilight permission to access the Forbidden Wing of the Royal Library, a wing so secret even the other princesses can't access it. Twilight rushes to Canterlot, excited for the research potential.

Then she finds those books…

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On a fateful night in a world far away from her, Princess Celestia mourns the idea that her two most beloved students are fighting. One battles for her friends and home while the other opposes, seeking her own selfish desires. When only one of them returns home, Celestia knows the worst has come to pass.

Still, hope lingers in the darkness. Sunset did return—but not as anyone remembers her.

Can Celestia, given a second chance to do things right, give Sunset the chance she never had?

Submission for the More Most Dangerous Game contest under the prompt of Past Sins.

Massive thanks to Cerulean Voice, vren55 and The Albinocorn for editing and prereading! Without them, this story may not have happened.

This story is a sequel to The Secret Life of Rarity

After the events of The Secret Life of Rarity, Sweetie Belle must find a way to cope in a world that she does not understand anymore.

There is a threequel too.

Now with a TVTropes page!!!

Cover art by the wonderful Viofriedsebe

Luna, sister to Princess Celestia, and Princess of the Moon, has been hiding a secret that she has kept from everypony, even long before she had been transformed into Nightmare Moon...

She has been killing ponies while they slept, taking their souls to who knows where...

What thoughts in her mind have clouded her sanity, and driven her to do what all ponies consider to be the most heinous and unforgivable crime in all of Equestria? What happens when she takes a loved one far too soon before their time, and her horrible secret is brought to light?

After Twilight returns from the Human World, Celestia is desperate to know of her former student, Sunset Shimmer, and what happened to her. Upon learning of the horrible things her former student has done, Celestia breaks down in tears as Twilight asks why she was so important to Celestia and why she never told anypony. Celestia tells the story of her and Sunset. How they were so close, and how one secret ruined everything between them.

Spoilers in comments.

Thanks to Biker_Dash, ugugg93, and The Abyss for edit and Pre-reading

Thanks to SilFoe for letting use the art

Rainbow Dash works the night shift at Freddy's for five terrifying nights.

...Except she doesn't.

Now with added Pinkie Pie!

Cover image belongs to Gardelius.

She's been assured by her sister a thousand times that they are equals, so where the hay is her throne?

This story is a sequel to An Affliction of the Heart: Volume Four

With her newfound responsibilities as Queen, Kuno has seen fit to lead the changelings towards a life of coexistance with ponies.

But there are those who would wish to see such an endeavour fail, and they're not above taking action to make it fail.

Cover art commissioned by Iakovl, drawn by Derpah.

Last night, Dusk Shine-favorite student of Prince Helios and newly ascended alicorn-went to bed in a Ponyville where all of his friends were stallions and a major event was about to happen the next day. When he woke up, Dusk Shine had swapped placed with an alicorn mare named Twilight Sparkle. And, all of the friends and ponies that were male in his Ponyville were now female.

But, with the Princes (or is that Princesses?) coming tomorrow, Dusk Shine has no time to figure out what happened or what went wrong. Preparations need to be made and friends need to be consulted to get ready for the event. After all, everything else was just like his Ponyville. Surely it shouldn't be a problem, right?

Right?

A story that is inspired by and runs parallel with One Of Those Days by Taranth.

Proof reading and editing help provided by Door Matt.