User blog comment:North star/Trinity of my curiosity/@comment-184.61.121.184-20110708205805

I think it's Jupiter (Jason) Aphrodite (Piper) Hepheastus (Leo) Poseidon (Percy) Hades/Pluto (Don't know) Athena/Minerva (Still don't know) and Ares/Mars (And... still don't know. Frank and Hazel are part of the seven, we just don't know their parents yet.