Hades is an interesting character to encounter very different from the Hades and Persephone in the Sandman. While Percy is down there they learn a couple things we didn't really talk one like Hades has had his missing like he uses as his own magical artifact that's missing, just like Zeus does. So somebody is trying to frame him play Percy yep to start this Like you know the son of Poseidon is doing the stuff to start a war  that's what we learn when they're down there.