A Pegasus named Alice Goldenfeather who lives in self-exile not because of what she did, its what never happened
and one night she entered this door, that led her to another world
She then met Discord, The Lord of Chaos
and as they stay together the more Alice discovers about herself, and what terrible secret lies inside, that's waiting to be sprung out if she doesn't come to terms with it
A creature that has been long thought destroyed resurfaced, and unless Alice can find how to stop it, it will undo everything....

(credit to equestria stories deviantart)