From publisher blurb: Up from the Depths! Dark and disturbing dreams of the deep wash over Marriwell harbor, and the townsfolk wonder if that nightmare of a vast wave was terrifyingly real. For the heroes, something has changed as their bodies now crave the salt and the brine, with their skin slowly sloughing away to reveal gills and scales. The scummiest seaside wharves hold secrets long hidden, and a voyage into the deep must brave savage storms to reach a sunken city where maelstroms above and below the surface hide a fleshwarping tide of mutation and madness that threatens surface dwellers and merfolk alike. What strange magics are bubbling up from the ocean floor in The Diluvian Disaster? The Diluvian Disaster is an 8th-level 5E adventure that combines urban intrigue with aquatic exploration. It features harrowing combats and expanded rules for madness and mutation, and promises to challenge your heroes as they plumb the depths of the sea to uncover the secret of stopping this seaborne devastation.