User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-6064271-20130725011339

Ok so in the books it says Hera chose 4 of the 7 (Jason, Piper, Leo, and Frank) and that she visited them early in their life (except Piper) but I was thinking maybe she also chose Annabeth and Percy. I mean that would explain why she helped them in the battle of they labrynth, not just because she knew they were going to play a big part in the Titan War but because she knew if Gaia was close to rising then she would need Percy and Annabeth. Thats why she acted nice to them and wanted to gain their trust during the events of that book. And if youre asking about Hazel, I think in a way Gaia chose her, or maybe Juno didnt visit her because she was from a different time but i doubt that was the reason since Pluto knew her future or at least part of it, so maybe Juno did not visit her because she excludes the children of Pluto (as she did to Nico in the Battle of the labrynth).