Trixie and Rarity must bond to escape from Tartarus and survive the odyssey across realms and planes of existence on their way home. Along the way they encounter gods, demons, heroes, and friends old and new.
Myths and Birthrights side-story: Velvet Sparkle recounts her younger years in a nation north of Equestria and the events leading up to her becoming the mother of Shining Amour and Twilight Sparkle