Reveal

Reveal is the countermeasure to Invisibility spells.

Spell Description
Invisibility might be a really great thing should the caster use it. However, should the caster's foes use it to make themselves and the possible loot invisible, then it can be really annoying. Dragons also love to turn themselves invisible and then roast their enemies. However, this is no problem with Reveal. Casting it, all invisibilities in the area are dispelled, leaving the foe without their advantage.

Please note that this only removes invisibility. In order to remove true illusions the Dispel Illusion spell was developed on the Serpent Isle.

Trivia

 * The spell was omitted from the C64-Port of Ultima VI.