Jay is poisoned by a Chimera when trying to save Odie, and the other heroes only have a short period of time to bring back aconite from the Underworld's Plains of Asphodel to save him before his soul is lost to Hades forever and the prophecy is broken. Meanwhile, Jay has to elude and fight Atropos, one of the Fates whose duty is to take his soul to rest eternally in the Elysian Fields. With the end of the world coming if the heroes fail, Cronus also attempts to put together an ideal costume for his reign.