This demon may take upon it two forms, the male form being the incubus and the female form the succubus. The incubus lies upon women in order to have sexual intercourse with them. An incubus may pursue sexual relations with a woman in order to father a child. An encounter with this demon comes in the form of a dream and repeated intercourse with an incubus or succubus may result in the deterioration of health, or even death.

Incubi are members of the Supernatural and Fantastic Wayfarers Association.

SOURCE(S): The Zork Chronicles