Gnome - Ancient Plegde - Manual.

Being mostly peaceful information gatherers, the gnomes made an old pledge to keep their knowledge 'neutral' to prevent it effecting the power of either the Light or Dark of Thera. This pledge has strengthened them against such powers and an inherent resistance to negative or positive effects can be called upon. The ancient pledge comes from within, fortifying their body and mind to allow them protection for a time much like resist Positive and resist Negative. Should the power come from a neutral source however, the protection is negated (lasts for half a day at Hero, maybe 3 hours at the least. Resistance counts even if an evil person uses a positive attack. Its only other neutrals it doesn't work on.)