Includes: Introduction by Robert Silverberg A dusk of idols by James Blish The human operators by Harlan Ellison and A.E. Van Vogt Think only this of me by Michael Kurland The short ones by Raymond E. Banks Warm by Robert Sheckley When the change-winds blow by Fritz Leiber One face by Larry Niven The man who lost the sea by Theodore Sturgeon The happiest creature by Jack Williamson Klysterman's silent violin by Michael Rogers The new reality by Charles L. Harness