West Marches: Westmoor
A ravine and cave system north east of the Lakeside Ruins inhabited by goblins. It can be found at the base of a twisted old tree.
Inside the ravine is a series of ancient Elven ruins and a large likeness of the demon Dranzilthl carved into one of the walls. The carving’s mouth provided an opening into a more expansive set of ruins.
Eventually the ruins come to the edge of a gorge and a rope-bridge to the other side, which leads to Dranzilthl’s Palace.