Arborea

Arborea is one of the Outer Planes, and former home of Corellon Larethian, Ehlonna, and Obad-hai. Once a realm of deep forests and the wondrous splendor of nature. During the Elf War, Lolth created a virulent poison that forever blighted the plane, transforming it into a nightmarish place of darkness and rot. It has since been abandoned by the gods, left to fester as an eternal reminder of the terrible power of the Spider Queen.