Cult of the Blue Crab (2019)

From the publishers blurb:

Exciting lower-level adventure for any game system!

The small city of Shallow Bay is plagued by a gang of smugglers who sell contraband alcohol and luxury foods to the people. The mayor’s expensive lifestyle has depleted the city coffers and the head of the city guard orders his men to investigate the smugglers and put an end to their activities. Unbeknownst to most, the smugglers are a front for a radical chaotic water cult that wishes to sweep earth free of “the wicked”. The money made with the contraband is intended to buy better equipment and hire powerful allies for an expedition to the lost Temple of the Chaos Elemental. By awakening this ancient evil the cult can take the first steps towards their ultimate goal of destruction and mayhem.

Features:

6 full color maps of all the major sites in the adventure. (And even more maps here)

The write-up is suitable for any "F20" and OSR game - simply map the monster names to your monster manual! More detailed advice is given for 5th and 13th edition games in the appendix.

A flamboyant enemy that does not simply wait for the players to act but follows her own agenda.

Tips on how to run this adventure in one or in several sessions.