The Dark is an evil force of pure dark energy that is the main source of power and magic in Vagrant Story. Leá Monde, the abandoned "city of evil", is said to permeate with its power, as a result of the city's numerous incantations carved throughout its walls and the dark magical influence of an ancient religious cult who practiced these incantaions and learned the ways of the Dark since the time of the cult's founder. Whoever can control Leá Monde's power will gain immense strength, at least enough to conquer all of Valendia.