It's New Years Eve and CRONUS escapes from Tartarus! When he learns of the PROPHECY, Cronus frees the GIANTS and unleashes the fearsome TYPHOEUS in order to stop JAY, HERRY and ATLANTA from discovering their destiny.

Who let the dogs out? CERBERUS did! What in HADES can calm this savage beast? Only ORPHEUS' lyre can do that; problem is the heroes have to travel to the UNDERWORLD to get it... and that's exactly what CRONUS wants them to do.

When a bad moon rises on All Hallows' Eve, THERESA and the gang find out that HECATE, Queen of the Dead, still has a few tricks up her sleeve. Though Theresa has learned a little magic, Hecate wrote the book on it- like, I mean, what's Theresa supposed to say to stop a legion of ZOMBIES?

All is fair in love and war when EROS hands out hate on VALENTINE'S DAY. Using arrows blackened by Cronus' rage, even Neil hates himself! It's up to Jay to bring the gang back together and stop Cronus' new Messenger of Mean.

When CRONUS manages to slip some ancient DNA into a cloning experiment, the heroes have to grab the bull by the horns as MINOTAURS run loose in New Olympia's underground tunnel system. To defeat them though, Odie has to get over his claustrophobia and help the others out of a tight spot.

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.

MELAMPUS, the Dr. Doolittle of ancient Greece, is able to stop the STYMPHALIAN BIRDS and save the heroes- though not before one captures NEIL. When CRONUS steals Melampus' powers, it's all up to THERESA to focus her psychic ability and save their bird-brained friend.