With this spell you hide yourself in a cloak of blinding light. The light is holy in origin, thus it only works against evil creatures.
Some ghost liberator paladins dislike this spell because they like to face their enemies 'like a man', but none can deny the usefulness of this spell. It is very useful on scouting missions, to see what kind of opponent you are facing, and if you need to call for backup. Alas, many a liberator has fallen prey to the evil hordes they have been snooping on when the spell ends - a sound reminder of the short duration of this trick.
Usage: cast holy glow