User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-24339098-20130717191747

So, Rachel and Octavian are going to meet in The House of Hades. This could get interesting folks! Does this mean that the Romans attack Camp Half-Blood in HoH (though I always thought it wouldn't happen till book 5) or one of my theories where a small group from Camp Half-Blood sneak away and try to fight/stall the Romans themselves (Rachel would go with this group).