How far does a sister's love extend? How far would one go, to bring the other back?

Cover image is Bitter Sea of Regrets, by Karnella.

Luna and Celestia hold a slumber party to celebrate Luna's return from the moon.

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Everypony tries to cope as the laughter is suddenly torn out of their lives.

'Pretty in Pink' on EquestriaDaily
Dramatic reading by Azekahh

This story is a sequel to Past Sins

Touch, Smell, Taste, Hearing, Sight

This is the order the five senses develop in for foals as they rest, cradled in the warm safety of a mother’s womb. But for one, her womb was a thorn bush in the dark of night. For one, the safety and warmth that should have carried her into the world was replaced with pain and cold.

These are Nyx's first hours.

[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?

Rainbow Dash has a secret. A secret she has kept since she was a little filly. If it gets out, it could be the end of her reputation, the end of her carrier, and even the end of her friendships.

And what's worse, is that a resent shortage threatens to expose her.

(Inspired by Don Ko and the image to my left.)

(It should also be noted that this story is non-canon both in relation to the actual show and in relation to my personal Head-canon, which is what I usually like to write about.)

/post-Twilight's Kingdom/ Because surely forgiveness wasn’t that easy, was it?

Discord has lived for quite a long time. Centuries as a ruler, a millennium as a rock, years as a reformed draconequus, it all gets very tiring. A nap is exactly what he needs. But when you live forever, time loses its meaning, years pass in the blink of an eye, mortals come and go like mayflies. And that's fine.
After all, any being that is truly important will live forever. Discord would never associate with anything less.

One night, an amazing display lit up the sky over Ponyville. A comet, brighter than any in living memory, was making its way through the sea of stars. The residents of the town gathered en masse to witness the spectacle. As was the tradition for such an occasion, many ponies made a wish on the celestial body, hoping that maybe, just maybe, some of them might come true...

On a dark night filled with even darker magics, an insane cult attempts to give Nightmare Moon a body and life of her own, utterly separate from Princess Luna. But, when the spell is interrupted by Celestia, something unexpected is created.

Now, a little black alicorn filly named Nyx finds herself living under the care of Twilight Sparkle, only to be haunted by memories and emotions from her past. Is she Nightmare Moon reborn or is she simply a doppelganger with a soul and mind of her own? Can Twilight Sparkle protect Nyx from those who refuse to see past her dragon eyes and black coat?

Or, will Nyx be forced to inherit the sins that may not even be hers and become the greatest evil Equestria has ever known?