The first was the Forest of Fear, which was some distance further into the Beast Domain after the Valley of Prisms. This was a forest with flora and fauna that had a special effect on the mind that caused the target to become more neurotic and prone to experiencing negative emotions, particularly fear.
The second region was the Caves of Penance, which was some distance from the side of the Forest of Fear to its right. This was a region of cave tunnels created by a species of giant ants that could dig through hard rock like it was clay, forming an enormous number of winding cave tunnels that wove through the bedrock and the mountains of the region.