User blog comment:SonofMeridia/What does Nico Know about the Prophecy of Seven?/@comment-4573762-20111124044117/@comment-4357135-20111124052934

LIke you said, in some cases gods know the end of a prophecy. So Nico, spending so much time in the Underworld, might have gotten hints accedently by Hades. He probably put the hints together like a puzzle.