Board Thread:Spoilers!/@comment-26443838-20160111023755/@comment-25926288-20160325204459

JennaMae wrote: I think in 5x16, 5x17, and 5x20, there were set pictures of Hades holding a piece of paper - most likely a storybook page. He hands it over for them to look at in 5x20. So whatever the heroes are looking for, Hades probably has it at the moment. Right! Unless that's the contract....

However, that makes the most sense as that may be right before Hades' centric.