User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-5929284-20130702143952/@comment-4890664-20130704132821

Prophecies are riddles that only ever make sense after everything has come to pass and overthinking it just confuses people... The whole Prophcy is 

" Seven Halfbloods shall answer the call,

To storm or fire the world must fall,

An oath to keep with a final breath,

 And Foes bear arms to the doors of death"