There are many different explanations as to why Equestria fell. The true answer is quite simple: Nothing can kill Friendship more than a mother having to bury her own child.
Right before the Elements struck, the Nightmare unleashed a spell out of desperation. A substitution spell. Otherwise known as the correct use of Kawarimi.
A young woman, who knows little about MLP, find herself in the world of Equestria with a strange but familiar body with others who had experience the same change
I was a young filly that used to fear the darkness, like everypony else. Until Princess Luna showed me the stars. And then I became a Child of the Night.
Nightmare Moon is not just some evil version of the night princess, she is a culmination of malice, darkness, jealousy and pure unfettered burning HATRED for her sister. So why does she feel so alone?
Worm: a grim-dark world where anything that can go wrong, will. A world of killers and monsters, despair and loss, a world of nightmares… But luckily for Taylor Hebert, she now has a Nightmare of her own.
It is a different Equestria, Luna is the reigning princess & Sunset Shimmer her devoted student. Now a year after defeating Daybreaker Sun an ancient order which desires revival has created a humonculus filly named Helia, now sunset's has to play mom
Nightmare Moon has always felt negative emotions, but if there was one thing she didn't expect it was that she; the part from Luna's negative feelings, would feel a positive feeling towards the unicorn who defeated her: love.
A young boy in Orlando, Florida gets four lost girls guests to his house until they can find a way home, which happens to be in Equestria from My Little Pony: Friendship is Magic.
When Crosspatch and Lazybug finally discover what became of their parents after the Zap-O-Lantern fiasco, they end up helping Twilight Sparkle uncover a significant gap in Equestria’s recent history.
The adventure begins, with us waking up in a pastel colored, pony inhabited world, and I meet the most pecilular ponies in a small town with a castle nearby, Who am I, I Am Sans the Skeleton...