The Jungle of Lost Tribes
An area where the Ancients are known to have created a huge village. Many ruins are scattered everywhere, with unknown devices and magics still there. The area is guarded by Uubarr, a tiger katanga, and by his fathers for at least 3 generations.
Something horrible happens to those heroes who explore the area—they are beset by a strange madness! The Headshrinker, Toka had her residence there for some reason.