User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-10218971-20130601071332/@comment-5927468-20130601120303

In mythology there were 100 giants, although RR may have changed that in order to work in the "Anti-god" angle. Or maybe a lot of them are just meant to be back up for the ones that have Olympian counterparts. So there are either 8 or 96 left to go.