[quote=@Prince of Seraphs]
<Snipped quote by PharaohAtem>

The Isle of the Bless is the high end neighborhood section of Elysium. It's still part of the underworld which belies the ability to make a living human child as there's a lack of living human women in that area.

Though that is one of the less used versions of the myth in the context of Zeus being the least bit merciful. Given that we've sort of set Zeus up as incredibly selfish and more than willing to go to war with his fellow gods mercy doesn't seem to really be his strong suit. But let's say that we did go that route and Chronus was allowed out of the underworld. Why isn't he the one spearheading the fight against Zeus. The world was his until Zeus stole it from him. Why would he be cool with letting Zeus keep it? And if we assume he is both free and fighting against Zeus why hasn't divine battle already broke out rather than simple the rising of tensions as a prelude to battle that has been established so far? Basically if Chronus is free all logic dictates that we should be in the middle of the last Percy Jackson book rather than attending school.
[/quote]

Fair point however if we go with him m still being trapped it still works for the same reason eventually he will be released even if it's not by Zeus and once he is free he can go back in time to farther a mortal child.