From the introduction: A Tales of the 13th Age adventure for 13th Age characters of 6th level, in five two-hour sessions. The adventurers start the adventure captured by the Diabolist, and must escape her dungeon. Their escape is complicated by traps that the Diabolist has set to slay the weak, and squads of Cambion Assassins who are trying to win a commission from the Diabolist to kill an icon. Of course if the adventurers win out then they will have proven themselves ‘worthy’ of her service.