Eerie
From Feed The Beast Wiki
Eerie is a biome added by Thaumcraft 4 mod. It does not generate naturally and can only be found around Dark Aura Nodes in Totems, Hollow Hills and Eldritch Portals when such nodes are in active chunk for a long time. Such nodes spread this biome in a small area around them.
This biome has very dark green color of Grass and foliage (even darker than Swamp biome), darker color of sky and water and does not have any special features.
This biome can be easily obtained with the mod Mystcraft by creating a Single-biome world and choosing this one as a filler.
