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 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?

One day, as the Mane 6 and Spike are having a nice day out, a strange cloud appears to them from beyond the horizon. This cloud starts to cause immense chaos with its magical lightning bolts, with the chaos looking similar to the kind Discord had created before. After defeating the cloud, Twilight starts to act strangely, and the next day, Twilight's body parts start to change into different animal parts! Not knowing what to do, Twilight and her friends race to talk with Princess Celestia about this, with Twilight changing more and more with the more chaos she causes...

What if during the Summer Sun Celebration, Twilight didn't meet Rarity, Applejack, Pinkie Pie, Fluttershy, or Rainbow Dash? What if she met different ponies? And they're all stallions? How would things be different? How much would things stay the same?

This is basically a retelling of MLP but with different characters. Twilight is still here, but the rest of the main six are not present, instead other characters will be taking their place. Alternate Universe pretty much.

The lessons I plan to put into each in one of these chapters (besides the first two) are lessons that I either need to learn myself or lessons I learned the hard way.

Concept Help by Psychotic Nekomata and Judoshrew
Co-Written by Emerald Comet
Edited by Nonagon

Now with Audio Drama!
Chapter 1

The Sequel to Number 12.
The Doctor and Twilight leap into the future, though it may be a far darker place than they envision. In the mean time somehow the Doctor keeps crashing around Ponyville, something to do with Fluttershy, but what?