User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-4405022-20130224224515/@comment-122.167.24.94-20130225080129

I don't think the final battle will be at the doors of death. If the demigods wanted to stop the war then they should have sailed back to America by the end of MoA. Percy is on his own in Tartarus.