Upon the casting of this spell, complete Silence prevails in the affected area. All sound is stopped: Conversation is impossible, spells with verbal Components cannot be cast, and no noise whatsoever issues from, enters, or passes through the area. The spell can be cast on a point in space, but the effect is stationary unless cast on a mobile object. The spell can be centered on a Creature, and the effect then radiates from the Creature and moves as it moves. An unwilling Creature can attempt a Will save to negate the spell and can use spell Resistance, if any. Items in a creature's possession or magic items that emit sound receive the benefits of saves and spell Resistance, but unattended objects and points in space do not. Creatures in an area of a Silence spell are immune to sonic or language-based attacks, spells, and effects.