The Illusionist creates an illusion of complete darkness in a circle with a diameter of 24 yards, centred anywhere within 96 yards of the caster. This darkness is magical and cannot be illuminated by any normal or magical light sources, including torchlight, fires, Glowing Light spells, and so on. Within the area of darkness, creatures can only move in a randomly-chosen direction at quarter pace, while missile fire and combat is impossible. Characters within the area are totally blind, unable to see even a lighted torch in front of them.