User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-5774152-20121226062547/@comment-5881112-20121226064414

All prophecies are different. Just because one great prophecy has to do with a child of the big three turnning 16, dosen't mean that all great prophecies have to have the same thing happen. There are also other prophecies, like the one in Percy Jackson and the Lightning  Theif,  that have nothing to do with a child of the big three turning 16.