The Heroes of Olympus — Hyperion Press
Issue: #4
At the conclusion of The Mark of Athena, Annabeth and Percy tumble into a pit leading straight to the Underworld. The other five demigods have to put aside their grief and follow Percy's instructions to find the mortal side of the Doors of Death. If they can fight their way through the Gaea's forces, and Percy and Annabeth can survive the House of Hades, then the Seven will be able to seal the Doo...
First appearances: Favonius, Achlys, Chione
Creators: Chris Dickey, Orpheus Collar, Rick Riordan, Robert Venditti
Characters: Polybotes, Nico di Angelo, Hazel Levesque, Favonius, Rachel Dare, Achlys, Chione, Calypso, Pasiphae, Hecate, Hyperion, Creus, Pluto, Cupid, Nyx, Geryon, Coeus, Iapetus, Arachne, Percy Jackson