User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-5247339-20130622090134/@comment-7742465-20130623053508

Calm down... remember, Percy is based off Rick's son. Plus, he's Rick's first character in his first book series for kids. There is too much of a connection there to, after 8 books, say "nope, sorry, he's gonna die." It wouldn't make sense. My guess is one of the minor characters are going to die, like Coach Hedge, or Calypso or something.