[With Changeling the] prolific and popular Zelazny has produced a short but satisfactory fantasy novel on the "changeling" theme. A baby from a world of magic is brought to technological Earth, while an Earth child is carried off to the magic world…. The writing is clear, the characterization adequate, the background and system of magic intelligently worked out, [and] the pacing brisk….

Roland Green, "Adult Fiction: 'Changeling'," in Booklist (reprinted by permission of the American Library Association; copyright © 1980 by the American Library Association), Vol. 77, No. 1, September 1, 1980, p. 35.