User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-120.149.153.238-20130226091759

I seriously want the gorgon sisters to try to get their revenge on Percy and Annabeth while they are in Tartarus. Also excited to see what Calypso's role in the story will be!

I think the POVs will be Jason, Hazel, Frank and Percy or Annabeth, but I would MUCH rather have another Percy POV (no hate on Annabeth!)