Board Thread:Spoilers!/@comment-1916997-20180306160338/@comment-34657163-20180507185655

8Rob wrote: Not even Hades could free someone from the River of Lost Souls Did he ever say that?

I also think because Arthur was the prohesized benevolent ruler of the Underworld, he'd maybe have some sorta "i am the ruler! you are now free! magic!"