Defoe's 'Robinson Crusoe' is analyzed as a disguised account of the world destruction, rebirth, and world reconstruction fantasies of a paranoid schizophrenic. It is pointed out that Crusoe's efforts to return to society were hopeless and involved a complete retreat to living within a cave until his man Friday arrived. Koff regards Friday in the role of analyst. Crusoe at first regarded Friday as a dangerous (cannibalistic) interloper, but then treated him as a slave in order to use him as a bridge to escape from isolation. Finally he wanted Friday's friendship and tested him out for his fealty. Friday accomplished a gradual change in Crusoe's superego which allowed him to be more accepting of primitive impulses. An analogy is drawn to the methods needed to approach withdrawn schizophrenics and some children: the analyst must be at first a willing slave to establish contact with the patient, and then can help him to return to 'civilization'.