wizard ˈwɪzəd/ noun 1. (in legends and fairy tales) a man who has magical powers. Book 4 in the Unnatural Series

angel ˈeɪndʒ(ə)l/ noun 1. a spiritual being believed to act as an attendant, agent, or messenger of God, conventionally represented in human form with wings and a long robe. "God sent an angel to talk to Gideon" Book 3 in the Unnatural Series

demon1 ˈdiːmən/ noun 1. an evil spirit or devil, especially one thought to possess a person or act as a tormentor in hell. Book 2 in the Unnatural Series

Ghost (noun) - an apparition of a dead person which is believed to appear or become manifest to the living, typically as a nebulous image. Book 1 in the Unnatural Mini Series