After the Pure War, Iwano W. Morgan and his people in Imaginundia were safe once again. After becoming a brony, newfound darkness was born in his heart, taking him to Equestria. The dark of Harmony awaits the Mane Six, the Princesses, and Iwano.
Rainbow Dash finally became a Wonderbolt, after years of training. However, becoming a Wonderbolt leads to secrets and a hefty price to pay if it goes out.
Fluttershy is no longer herself and needs convincing from her friends to return to normal. However, the more they try, the more distant she becomes, and Twilight worries that they may lose their friend forever.
All is well until, one by one, the inhabitants of Ponyville begin acting… strangely. Shaken by a terrible feeling of dread, Rarity believes she may be the only one left to save everypony from the rising darkness.
A gem containing what remains of King Sombra has been found. Now that Twilight has stepped into her role as 'Princess of Friendship' she takes it as her responsibility to help Sombra or rid Equestria of his evil once and for all.
Twilight wasn't supposed to say anything about magical blue boxes or her secret love who should have never been alive, but Discord is a jerk who made sure she told all her secrets.
Twilight wakes up in a hospital near the border of Changeling country, but something about her is...off. She remembers nothing of her adult life, and she seems to be juggling a bit of an alter ego. An evil alter ego.
A time-displacement spell from the distant past brings Twilight face-to-face with the one pony in history she respects the most. But... does she already know him?