Enemies of My Enemy (Patreon)

In the 11th installment of the Savage Tide, the characters head down the River Styx to treat or face off against the likes of Iggwilv, Orcus, Malcanthet, Obox-Ob and Charon. Dungeon Magazine #149 laid out this Abyssal adventure in great detail.

Player, DM, Gridded and Non-Gridded versions of these maps and more are on this Adventurer post: https://www.patreon.com/posts/117103790