In general, Druidic rituals work best in the north, and Acarian magic works best in the deep south. This drops to -2 or lower as you travel south. The land is crossed by magical lines of force known as ley lines. A skill roll is required to do this. Every location has its own set of lesser spirits which can be drawn upon during rituals.
Some places are especially conducive to spirits.
In these places Druidic rituals will get bonuses. Damage caused by spells Wherever spells cause a die of damage, you must roll a d4 instead of a d6. This rule has no game-terms justification, but weakens the damage potential of magic to be more in line with the weapons. Invisibility True invisibility does not exist. All rolls are at -2 if the subject is absolutely still.