Rooders, occasionally spelled "Ruders," are teenage girls who stand against the forces of darkness. According to Dick Hamilton, the Rooder blood is prominent in the Hamilton family, although the Rooders are scattered all over Europe. Their duty is to battle the Entities and Subordinates, and save people whose souls were lost by returning their precious items to their bodies and/or spirits. The Rooder powers first appear in a woman's early teens, peak at age fifteen, and usually disappear entirely by age twenty.