The Queen of Blackriver (2010)

From Introduction:

A Dungeonslayers adventure for levels 1-4.

This dungeon is the hiding place or home of a hideous Gorgon, a woman who has snakes for hair and whose gaze turns living creatures to stone. It is essentially a cave with a network of tunnels with an underground river near the entrance that was probably carved out purposely; perhaps by some magical means.

Located in an isolated location far from any civilized place, just outside the cave entrance are several statues scattered about of people and creatures arranged in horrified poses and whose faces seem to express terror; no doubt the victims of the Gorgon’s gaze.