Sombra and Radiant finally assembled the missing pieces of Princess Amore to bring her back to her homeland. But what they find is a soul stripped of her memories. What could Amore hope in this world without knowing who she is?
A few months prior, Starlight Glimmer drank a potion which showed the tragic demise of one of the worlds she affected when she sabotoged the first Rainboom. Now, she must undo the damage she's caused before it can get any worse.
Twilight learns of Sombra's past, and finds him alive but weakened. She decides to learn how to use his Dark Magic for Good, by taking him back to Ponyville.
Princess Luna disappears from Equestria with hopes of saving the world and is accompanied by the enigmatic Sombra. Meanwhile, Celestia tries to bury secrets as immortal as she is and Cadance must choose her loyalties carefully...
Twilight Sparkle traverses the Arctic with Sombra as she tries to learn about the mystery that was Starswirl the Bearded's life. But are these secrets what she thought they would be? And just who was Starswirl anyway? Sombra seems to know, but why?
Sombra is by no means an easy opponent. He is a manipulative wild card who has cheated death twice, and seeks to do so one more time. But, how many ponies can cheat death forever?
Lately, Princess Cadance has been feeling inadequate. She's spoken of this briefly to Twilight Sparkle but her longing for a grand adventure is really starting to get to her as are the thoughts that she isn't doing all that she can.
Equestria faces its most dire threat yet as Grogar and his legions march upon Canterlot. Meanwhile, Cozy Glow, Chrysalis, and Tirek prepare to betray him and seize power themselves. Can the Mane 6 save Equestria?