When Twilight sees Pinkie Pie standing alone one night in the midst of a terrible storm, she decides to let her stay for the next couple of days. Little does she know how much her life will change in the nights to come.

Every choice we make denies ten thousand possibilities.

Cover Art by Relaxn

Special thanks to my editors!

Sourichan
Zeta040

Rainbow Dash has always held a carefree life. No worries, and surrounded by good friends. However, a visit from an old friend changes that and Rainbow Dash is suddenly left with a package that changes her life forever.

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?

Why does he cry? Because he doesn't know what he is.
Is he an Angel? Never knowing a god's kiss.

How long has he lived? Ask him if you wish.
Will he answer though? He's as fragile as a dish.

Will you love him? Give him what he craves.
Will you hate him? Throw him into the flames.

Opening themes: Hello - Pol Rossignani (Evanescence Cover) - Part 1

I'm Alive - Shinedown - Part 2

Emperor's New Clothes - Nathan Sharp Cover - Part 3

        Dark Star.
        His uncle gave him that name before he passed away, bless his soul. He always wondered why the name was so important, why his uncle had named him.
        What's in a name?
        He joined the guard to protect his family. He was persistent and loyal, some say to a fault. It was just him and his family. No friends. Just his family and his name.
        What's in a name?
        Dark Star had many questions. After moving to a small town, he might just get them answered. But there is one question in particular he wants answered.
        What's in a name?

Two years after Nyx was stripped of the Nightmare's power, Twilight Sparkle is attempting to raise Nyx as a normal filly. But as Nyx's magical abilities begin to grow out of her control, the pair quickly earn the attention and ire of some powerful ponies who do not have Nyx's best interests in-mind.

During the night, the Elements of Harmony mysteriously vanish, and Princess Celestia enlists the aid of their bearers to find them. Twilight is forced to choose between her duties to her princess and her duties to her daughter. In the process, she discovers a web of conspiracy surrounding her daughter that reaches back a thousand years into Equestrian history. Will Twilight be prepared to face the things she learns along her journey's path: about Nyx, about Celestia, about Equestria, about the Elements...

...about herself?

Based on Past Sins by Pen Stroke Pony.
Alternate universe, because Twilight never became an alicorn or princess in this story.