A thousand years after Princess Luna's banishment, an old flame will return, bringing a potential threat to Equestria. Out of desperation and driven by conflicted feelings, a journey will begin, taking a group of ponies to the furthest reaches of Equestria. Ancient and lost secrets that even the Princesses have forgotten, and new revelations that bring into question the nature of those celestial ponies will be unearthed, pushing the adventurers into a spiral of mystery, discovery, and tragedy.

Spring Mist, night guard of Everfree, is in love with the night and forever loyal to Princesses Luna and Celestia. Yet in wishing to be more, he will happen upon a series of events that will change not only his own life, but the face of Equestria for the next thousand years. As Luna is seized by the Nightmare and transforms into Nightmare Moon, Spring Mist will be there as a piece of the puzzle. But what happens when the Nightmare begins talking to him?