User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-5774152-20130221034225/@comment-5774152-20130310175258

Yeah, he even said at the end of The Mark of Athena that he would use the Archimedes sphere to upgrade the ship so i'm with Dark on that one. And i'm sorry but I just don't think it will be Nico. I just really do not understand why he would stay behind. It would be too devastating for Hazel anyway. And why would you want to crank up the drama between the whole Frank/Hazel/Leo situation? I mean, do they not have enough drama problems already?