Invisibility All

The spell Invisiblility All - also known as Invisible All and Mass Invisibility - is the upgrade to the Invisibility spell.

Spell Description
While the Invisibility spell is good to hide one person from the eyes of others, it's just for one single person. For bigger groups, something better is needed to hide them. The spell Invisiblility All enables the caster to cloak all the members of the party at once, hiding them from their foes. Now they can pass by without being bothered by these foes. As with the single spell, this spell also gave the gift of infravision during the early Age of Armageddon.