This story is a sequel to Past Sins

Side-story to Past Sins - Spike almost lost Twilight to a hangmare's noose, but now Twilight is safe and Nyx is a filly again. Normal life is returning. Still, Spike can't ignore the fact that Nyx just isn't the same as he remembers her. Her temper is more volatile, and, when she gets angry, all he can see is the rage-driven Nightmare Moon of legend.

And thus Spike has to wonder: Is Nyx truly reformed, or is she one bad tantrum away from calling herself Nightmare Moon again?

This story is a sequel to Past Sins

Side-story to Past Sins - Slowly, the wounds inflicted by Nightmare Moon's reign heal. Ponyville is being reconstructed, and the last refugees are leaving the castle. Nyx is with Twilight. Celestia and Luna rule Equestria and guide the sun and moon once more. Everything is as it should be.

But some things are never washed away. These are the things that remain to remind us of the past. They remind us of the good times we've had with friends and family. They never let us forget the mistakes we've made. Everyone has them. Twilight has them. Nyx has them.

And, on occasion, when you share your scars, your photos, and your trinkets with another, they just might share theirs in return.

Sequel: The Past of a Shy Mare

Rainbow Dash has never been seen around her parents. Nopony knows what they even look like. She's been raising herself since she was a little filly after what happened. She's alone in Ponyville. Her friends have moved on to much bigger things. They write to her and keep in touch, but they never visit. Their schedules are full of other things that need to be done. She tells her parents story now because of the dark secret she has kept since her friends leaving.
This is my first Slice of Life and Sad fic, so I don't know how it will turn out. The idea came from a picture I saw with RD and Fluttershy. I hope you like it!
Also, check the date of this story. I started writing it before we saw her dad in episode 12 of season 3.

This story is a sequel to Past Sins

Hearth's Warming is a time for friends and family to come together, celebrate harmony, and welcome the new year. Nyx is looking forward to just this as she rides the train to Canterlot with Spike and Twilight. She's going to meet her extended family for the first time and wants nothing more than to make a good impression. Yet, the sheen of the holidays can't hide the trouble caused by meddling grandparents, relentless reporters, and a paranoid uncle.

On the moon there is a message addressed to the mighty Princess Celestia. This message is engraved in the eternal dust of this barren desert of nothing, and within this eternal dust, are listed the past sins of the powerful Princess, written by none other than Nightmare Moon herself.

My Little Pony Friendship is Magic has become an obsession in my life and I have lost focus about what is truly important, until one day, I am met face to face with Rainbow Dash, and she has a very special message and an important mission for me.

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?