From publisher blurb:
This adventure has been designed for Shadowdark RPG through their 3rd-party license. The system is meant to be accessible to OSR players and modern players alike. Adapting the material to 5e or other systems is a simple affair.
In Gorgon in Fairflow, the characters hear troubling rumors about a criminal organization that assails the city of Fairflow. There have been many unexpected developments: the government has been replaced with puppets loyal to a strange magical entity, a strange statue rests at the bottom of a canal by the boat house, and no one dares confront the corrupt captain of the city watch.
The characters soon discover that a gorgon moved into the depths of Fairflow and is controlling everything from the shadows. A nefarious operation siphons the city's riches away to the gorgon's lair. The situation is so dire that an envoy from the capital already suspects that something is amiss as the taxes have not been paid. The characters must venture into the depths of the city and root out the devilish, seemingly-immortal gorgon from her lair.
This is an adventure that brings the heroes to a city in dire need of heroes, pits them against a legendary foe that might turn some of them into stone, and gives them the opportunity to save the region and earn local renown.