This forest is thick almost to the point of being impassable. Long ago a Calishite sorcerer cursed one of the local rulers that monsters would overrun his realm, and while the curse died with the offending ruler, the offspring of those monsters still thrive here. Owlbears, Intelligent Fungi, and Giant Spiders are common, and an occasional Naga can be found. Ruined, overgrown cities still exist in the interior of the forest, long abandoned when monsters drove out the inhabitants.