A/N: I did this for Mark of Athena, now it's time for House of Hades. LOL House of Hades the first book in both PJO and HoO that is an literation. Of coarse I notice that. :-D
All the POV's last time were from Greek demigods, so this will have the Roman (Jason, Frank, Hazel) and Percy or Annabeth would would be the fourth so we know what's happening to them. Choosing Annabeth keep the 2 boys 2 girls thing like in MoA, but somethings telling me it'll Percy.
Nico will be apart of HoH, like on board ship, not a minor role like before.
Roman camp will have the same role as before. I'm not sure how Rick will do it, but he will, maybe a iris message before/during/after the battle with the Romans.
If #3 is correct, that will be how they get the prophecy; the book needs its own prophecy.
I've heard people saying Nico will die because stupid Percy made him promise something(Really Percy, you knew the prophecy). I don't think that will happen, but if it does, Hazel will save him like he saved her.
Speaking of people making promises, did Octavian make a promise. Maybe when it says that he looks like Luke(That's how he's described, right) it was forshadowing them sharing the fate.
7. Rickhanger! (Duh)