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Blurb: “Here are seven stories-some somber, some light-hearted-dealing with the hidden dangers of technological miracles. Like all good science fiction, they are not meant to be read as sermons, but were written to entertain and amuse. Like all good science fiction, how-ever, they function on a second level beyond that of diversion, for they urge us to beware as we make our way into the glittering future of scientific marvels and wonders. For we are only human and thus capable of error, and in that glittering future there may lie concealed an infinity of perils.
ROBERT SILVERBERG also edited the science fiction anthologies Mind to Mind and The Science Fiction Besti-ary. His own stories have appeared in all the leading science-fiction magazines; he has won the Hugo award twice; and in 1970 he received the Nebula award for the year's best science fiction short story.”