When this spell is cast, the caster and any accompanying group are cloaked in a zone of magical darkness as wide as the group is. Any member of the group who moves more than 4 yards away from any other group member will no longer be within the area of effect. Creatures outside the area of effect cannot see anything inside the darkness, but those within can see out. Missile fire into the zone is subject to a -20 penalty, and it is impossible for a spellcaster outside to direct an individually targeted spell at anyone within it. (One can, however, target spells at the whole group in the normal way.) Anyone wishing to enter the Cloak of Darkness must pass a fear test to do so. Despite its appearance, this is not a Zone spell.