Andrews, Sheryl B. Review of The Devil's Children. Horn Book 46 (December 1970): 616-617. In her synopsis and brief commentary on the third and final Changes novel, Andrews observes that Dickinson gives greater attention to details than in the first two novels.

Haviland, Virginia. Review of Heartsease. Horn Book 46 (April 1970): 159.

Haviland provides a synopsis of the second Changes novel and offers a brief critical commentary. She suggests that a central flaw in both The Weathermonger and Heartsease stems from the fact that "the philosophy behind the Changes and details of the retrogression of man are insufficiently treated."

Review in Children's Book World.

Chicago Tribune. November 8, 1970. A review of Dickinson's overall achievement in the Changes trilogy.