User blog comment:SayuriDarling/The Blood of Olympus Official Discussion/@comment-4503464-20150423130321/@comment-23932365-20150423184148

^^ You have a point. The shift in POV could be why Percy seems different in HoO. Still, Percy isn't the same character that he used to be. To some, this is a good thing, and to others, not so much. You could say that Percy grew up, or the narration of HoO is simply different to that of PJO. Nevertheless, pre-HoO Percy is still the best in my opinion.