With her new apprenticeship under Nightmare Moon, Empress of Equestria and Queen of the Eternal Night, the orphan filly Twilight Sparkle plunges head-first into the conspiracies, secrets and intrigues of the Empire.
Nightmare Moon beat her sister and now the night lasts forever. She couldn't be more than happy. When she finds out a fatherless foal, Nightmare Moon decides to adopt her.
Twilight and her mother, Luna, return from the moon a year early. Things are great for the mother and daughter duo... at first, but something amiss. What could it be?