The Dosadi Experiment (1977) is not so much a continuation of the story of Whipping Star as a different kind of narrative set in the same imaginary universe. Although the novels share the same central character, McKie, the problems he faces in each are very different. The Dosadi Experiment examines broad social issues, notably the consequences of overpopulation. The "experiment" is one in which froglike Gowachins isolate a planet with the help of a Caleban and crowd it with populations of Gowachins and human beings. In their deadly skills, the inhabitants of Dosadi resemble the Fremen of Dune as Herbert again explores the loss of freedom.