[In "Manseed"] another old master performs masterfully in his first novel in some years. The Raven Foundation seeks to perpetuate the human race by sending thousands of tiny "seedships" into space. Each ship can produce a half-human, half-robot Defender as needed to guide the mission and protect the unborn colony, and this is the story of one Defender and his tribulations. Williamson conveys the anguishes and conflicts of the Defender eloquently, as his human memories show him what he has lost by becoming a created person. A gripping and suspenseful story.

Susan L. Nickerson, in a review of "Manseed," in Library Journal (reprinted from Library Journal, October 15, 1982; published by R. R. Bowker Co. (a Xerox company); copyright © 1982 by Xerox Corporation), Vol. 107, No. 18, October 15, 1982, p. 2007.