Prologue
“…Even after Nightmare Moon was defeated, her power still corrupted the land. She was not a fool and knew that in time some unfortunate pony would find one of her relics and summon her once again, her majesty princess Celestia knew that it would be so and sent her most loyal and powerful students to retrieve them, how unfortunate that she had underestimated the immense power that dwelled within them….”
-The Complete History of Equestria volume V, by Quillam Mankenshire Esq.