User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-122.164.236.246-20130325030339/@comment-6064271-20130327015453

Out of the 3 i think Reyna will have the most important role at some point because she made it clear to annabeth that she wants the romans and greeks to work together but she cant allow herself to look weak in the eyes of the romans because they would kick her out and Octavion would be Praetor and the romans and greeks would never work together because octavion hates greeks. So i believe she will make the romans realize that they must work with the greeks when she sees the best oportunity for it. In MoA many Romans didnt want to befriend the greeks but she convinced them until Leo got possessed and things got ugly. Also there are a couple people who have barely been mentioned in this series that i believe we should keep an eye on, like Rachel Dare, Clarisse, Chiron, Grover, Tyson, etc because i believe that Rick is saving one of these characters for a really big important role near the end of the series. It might be Grover since his only appearance this series was in a telepathic dream Percy had in SoN. I think Rick is making us forget about these characters to shock us in the end.