First of the Savage Skies series.
After running afoul of timberwolves in the Everfree Forest, Fluttershy is saved by a mysterious young colt with a most unusual and disturbing feature. Realizing that he is alone, without anyone else to care for him, Fluttershy realizes that she must try to bring this lonely foal out of the forest and give him a life of love and friendship. The problem is that this colt's...unique qualities have made him more than a few enemies, including some who are closer to home than Fluttershy realizes.

Now with a sequel: The Promise of a New Day.
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What Spike saw in the doorway of King Sombra's crystal palace hasn't left his mind. The fear of Twilight abandoning him haunts him through recurrent nightmares. Anxiety taunts him when he's at his most vulnerable, reminding him of all his failures, all his inadequacies, all his wounds.

One night, this fear and anxiety manifests itself in a full-blown nightmare, dragging Spike face-to-face with his greatest fear. What if Twilight never needed Spike in the first place?

Takes place right after the Season Three opener (before Episode Three).

Thanks to RGLloyd for editing.

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Rated Teen for some dark elements.

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?