A long forgotten fiend escapes Tartarus. It is weak and it must feed. Sensing a powerful cluster of connected nightmares and fears in Ponyville, it goes on the hunt.

Diamond Tiara finds herself in some strange nightmare, her classmates are there too. Something is terribly wrong. somehow she knows what her abductor wants. It wants her to be find her classmates weaknesses and expose them, to reduce them to sniffling wrecks, to be a bully, a monster.

She tells herself that she can't be so easily controlled, that she is Diamond Tiara, she is no one's pawn, but will it be enough. After all, grinding her classmates psyche's into dust is what she does best.