User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-5247339-20130605194433

in the sypnosis it said they have to close the doors to prevent the rise of Gaia and since the Romans are attacking in one month it could be possible that the last book deals with them trying to bring peace to the two camps and that this one focuses on them just closing the door of death and slaying the last giants so Gaia wouldn't be able to rise.Also think why does Rick make the Romans wait so long since I doubt Reyna could hold of an attack for no more then a couple of days and with Octavian he will want to attack as soon as possible, it could also be possible that Gaia rises actually from the hate between the two camp and just made it seem like she needed a sacrifice to rise since one of the gaints said she had many plans like the layers of the earth.

Gaia also said that she will rise in excatly 1 month this seems such a long time for the actual plan of destroying the roots of Olympus when they are very close to Greece already and it did no take more then 2 weeks to get to Rome.