Darkover (Publication Order - Primary Works) is a 29-book series with 29 released primary works first released in 1958 with contributions by Marion Zimmer Bradley, Mercedes Lackey, Deborah J. Ross, Diana L. Paxson, Cynthia McQuillin, Patricia Mathews, Eileen Ledbetter, Susan Schwartz, Elisabeth Waters, Kathleen S. Williams, Jacqueline Lichtenberg, and Jean Lorrah.