Following the events of "School Raze - Part 2," Cozy Glow spends a night in the Canterlot dungeon before she gets taken to Tarturus. While there, another inmate tells her the story of the Boogeymare: a spider-like mare who comes at night to feed on the souls of naughty fillies and colts. But that's just an old pony's tale. It can't be true. However, when the midnight hour comes, Cozy finds out what it truly means to be punished for misbehaving.

(Idea based off the game "Boogeyman" by Barry McCabe: https://store.steampowered.com/app/412770/Boogeyman/)