User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-10218971-20130603061220/@comment-10218971-20130604071450

Hang on. I just relized something. The romans will meet the greeks at the doors of death, while the others are trying to close them/free Percabeth.

In the prophecy, it says: And foes bear arms to the doors of death. So that means the romans would meet them there. You guys/girls can write how you think it can go. I'm just stating an idea.