Painful Truth
This spell serves the same purpose as zone of truth, but in a different manner.
Crime and Punishment
Author Keith Baker
Series Campaign Style
Publisher Atlas Games
Publish date 2003
Evocation
Level: Cleric 2, Inquistitor 2
Casting Time: 1 action
Components: V, S, DF
Range: Close (25 ft. +5 ft./2 levels)
Area: 5 ft. radius/level emanation
Duration: 1 minute/level
Saving Throw: See text
Spell Resistance: Yes
When you enter the area of effect you must make a Will save. If you fall under the influence of the spell you suffer 1d4 points of damage every time you intentionally lie. In addition, you must make a Fortitude save (with the standard DC based on spell level); if you fail, you wince or cry out in pain, making it clear to those around you that your statement was false. This only lasts as long as you remain within the area of effect.
Like light of truth, this spell may not be available to all clerics. zone of truth is a peaceful spell that would be offered by benevolent gods; painful truth would be a gift from evil or destructive deities. It is unlikely that a god would offer both spells to his followers.