River in Hades (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">river in hades</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for styx that I've seen before include "Underworld river; sounds like remote area" , "River crossed at death" , "River Charon rowed on" , "'River of Hate' in Hades" , "Mythological river ferried by Charon" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">river in hades</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lethe that I've seen before include "Mythological river in Hades" , "River whose waters caused the souls of the dead to forget completely their life on Earth" , "Underground flow of water" , "What could make one forget" , "River whose waters caused forgetfulness" .)