User blog comment:SayuriDarling/The Mark of Athena Official Discussion/@comment-4902593-20130115122705/@comment-2229042-20130129070232

I honestly think the biggest change in Percy was just the POV. Characters will always seem different through the eyes of the other characters. Instead of always being inside Percy's head, now we're seeing what everyone else thinks of him. Percy himself had very few chapters, actually. Point is, the thing that made PJ&O awesome was being inside his head and listening to all the snarky comments that he was smart enough not to say out loud. Now we don't have that. And also of course, like Dark mentioned, he IS growing up, and I don't think it's so bad...