From publisher blurb: Hidden in the depths of the most secluded jungle is a plateau dominated by monstrous beasts and primal tribes. This placeholds uncountable amounts of gems, gold and silver within long forgotten caverns, protected by reptilian monsters, humanoid beings and powerful shamans. Are you brave enough to explore the Kalunga Plateau? This product is an unoficial module for Old School Essentials, and it is compatible with pretty much most OSR games. It is a toolkit containing: A setting. Rules for character creation. A list of new spells. An adventure.