User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-4649443-20121022205841

What I'm thinking--Series starts of with oe of the other five going to NYC, meeting the Romans and convincing them to hear them out. Reyna agrees but says it has to be in CHB so that if they're lying, they can retaliate. When they get there, Octavian will be all like "Kill them!" but Rachel suddenly comes out of her cave, says a prophecy, and passes out. Then talking, shouting, explaining, etc., than switches to Tartarus in either Percy's or Annabeth's POV.

Just a theory about the first chapters.

BTW, what's anon?