User blog comment:CardMaster2412/Seven Half Bloods Parent and Identities/@comment-184.9.167.74-20110922002644/@comment-3459279-20110922003040

there is nothing saying it couldnt be a hunter, and in fact using a hunter would get around the fact that Hades hasn't broken the oath from the first great prophecy (if the Roman halves had to follow the oath too, we don't know that). I still think that the 7 cities for the 7 Godly parents of the 7 Demigod Heroes are a sure thing though. What I think is going to happen is that Percy is not one of the 7 (sorry guys!) and that this book is introducing 2 new kids a child of Ares (Frank) and a child of Poseidon (Hazel). The next book we get the new kid of Athena and the kid of Ares, one (or possibly both) could be hiding among the ranks of the Hunters...who knows?