A preternatural is a person who is born with the ability to neutralize a supernatural's ability through maintained contact. Alexia Tarabotti and her father, the late Alessandro Tarabotti, were the only known preternaturals until we meet a certain Templar in Imprudence. Also called "soulless," "soul-sucker," "curse-breaker," "exorcist," and "homo exanimus." In Timeless, Alexia discovers that water limits her abilities, and she speculates that it affects Prudence's abilities as well.