Type: Enchantment Ability
Class/lvl: Cleric 14, Magic User 3, Psionist 4
To Cast: cast 'detect invisibility' target
Target: Self 
Duration: 12 + (caster's level) hours 
Effect: Target will be able to see invisible creatures.
Mana: 10-20 (+2)

The 'detect invisibility' spell allows the target to see anything affected with an invisibility enchantment. A player looking at an invisible object or creature will notice that it's form seems to ripple and 'phase out', as if viewed underwater. 'Detect Magic' will not allow the target to see creatures affected with sneak or hide.