User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-75.101.96.187-20130531165025

So I was re-reading The Son of Neptune and at the end Hera says the giants can't be defeated until the Doors of Death are closed. So that could mean that they close the doors in HoH and Percy and Annabeth aren't in hell in the last one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! That made me so happy.