Deep within the Western Vashnars, a trail leads down into the canopied jungle of Dun Valley. At the very centre of the valley lies a massive volcano, atop which can be found the villages of Gar'nok and Thalagor, as well as the Dun Fortress, ruled by the ruthless ogre baron, Vukub Ysin'zhu.
Guarding the pass into the valley and patrolling the trail along its northern edge, adventurers will find aggressive mountain lions to be wary of. The jungle itself is a humid, steamy place teeming with wildlife, including opossum, tree frogs, jaguars, raccoons, gorillas, poisonous snakes, even a hippo and an elephant. A river runs through the jungle, infested with piranhas, its source hidden within a cavern on the western side of the valley. At the end of its course, the river filters into a swamp where crocodiles and giant crabs may be found.
The winding trails and close vegetation of the valley creates an isolated environment for those who wish seclusion, and the exiles Tolonar and Kaanan can be found hiding in the valley. Students of the Rajamalan language may seek out Numenesse to further their knowledge. Near the source of the river lies a primitive village of cavemen, led by their chieftain Talus. A commodity shop can be found nearby, stocking gold, silver and bone.