Celestia is dead. Luna is Dead. Their celestial bodies are dead, dying in the case of the Sun. It's up to Twilight, at the behest of Queen Umbra and King Solas, the parents of Celestia and Luna, to find one creature with the power to restore the Sun and Moon and bring their beloved princesses back to life. Friendships will be tested. Loves will be learned and lost. Lives will be sacrificed. But whose? And why? Just to revive the princesses? Is losing two of her friends really worth life on Equestria? What will Twilight Sparkle decide to do. After all, the King and Queen left it up to her. Didn't they?