The caster creates an area of darkness.
Book of Vile Darkness 3.5
By Monte Cook
Level: Bard 1, Cleric 0, Sorcerer/Wizard 0
Components: V, S
Casting Time: 1 action
Range: Close (25 ft. + 5 ft./2 levels)
Area: 20-ft.-radius spread
Duration: 1 minute/level
Saving Throw: None
Spell Resistance: No
Normal light sources cannot illuminate the area, but Darkvision allows a creature to see within the area. Light counters no light (and vice versa), leaving whatever light conditions normally prevail in the overlapping areas of the spells. Higher-level light spells counter and dispel no light.