User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-4531192-20130821185530/@comment-24339098-20130823152639

HoO could either end on August 1st or after the 7 (or what's left of them) return to Camp Half-Blood/Camp Jupiter, those are the 2 scenarios that make the most sense to me but of course nobody but Rick will know until October 2014 when the fifth book comes out.