I'm delighted to share that I have now completed the first keyed zone of the Drowned Labyrinth, the megadungeon at the heart of my new West Marches campaign.
The Unfinished Halls: a new adventure for Old-School Essentials
Building a New Campaign, Part 3: The Drowned Labyrinth
Ten miles west of Greyhold, a maze of sea caves leads into a sprawling network of flooded halls and corridors. Few who dwell there or plunder its treasures know the truth: that it is an ancient prison of a dreaming god.