An iron cage will create an attractor—a fabrial that draws specific elements to itself. A properly created smoke fabrial, for example, can gather the smoke of a fire and hold it close. New discoveries lead us to believe it is possible to create a repeller fabrial, but we don’t yet know the metal to use to achieve this feat. —Lecture on fabrial mechanics presented by Navani Kholin to the coalition of monarchs, Urithiru, Jesevan, 1175

