Underworld

You touch the ground of an area and the memories of everything that happened within a mile of this spot begin to surface "for example if you touch the spot of land where a battle happened those figures will return and begin to act out the event that occurred previously for the duration of the spell" Naturally party members and foes can be both positively and negatively effected by the event that was forcibly surface by this spells caster.

(If Multiple memories have occurred in one spot the spell-caster must clarify which memory they wish to dredge up)

(Note also that once a memory has been dredged up from an area it cannot be dredged up until a year has passed)