User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-7742465-20130623203319/@comment-3146930-20130623210207

For me, I call the Percy Jackson and the Olympians series and The Heroes of Olympus series the Camp Half-Blood Series, just an over-arching name. However, the PJO series is like the first movie, and HoO is the sequel.