From Age of Sigmar - Lexicanum
The Greenglades is one of the Jade Kingdoms of Ghyran, long tormented by disease-tainted fog, twisting the forest and plants into grotesque, withered shapes thick with sticky glistening moistness.
At the heart of the kingdom, was a carved stone, known as the Shimmetarn, that released numerous purifying streams of jade waters, from trickling freshets to deep runnels with cascading falls, restoring the forests to its former health.
Long tried the plague legions of Nurgle, reach it, but were turned away by illusionary magics, Will-o'-the-wisps. Only when the warband of the Dripping Skull under the blightmage Kraderblob was forced by the Glottkin did they find a path through.
- 1: Mighty Battles - Ambush in the Greenglades, pg. 174