At the time of her death, she had become the dominant figure in US sf and fantasy publishing' (SFE). 'As editor-in-chief of Del Rey Books, she demonstrated an extraordinary gift for marketing sf and fantasy to an unprecedentedly large audience, and her releases often hit the US bestseller lists. She moved to Ballantine Books in 1973 and established the Del Rey Books imprint in 1977. Inscribed by the author on the flyleaf: 'To Judy-Lynn-the Chinese-cookie girl Isaac (to Lester, too) 11 April 72.' Judy Lynn del Rey (1983-1986) started her career as an editor at Galaxy magazine. A sharp copy of a book seldom found in superior condition. A fine copy in bright, clean nearly fine dust jacket with a touch of rubbing to black background ink at spine ends. Survey of Science Fiction Literature II, pp. Winner of the 1972 Nebula award and 1973 Hugo award for best novel. 'Written with a verve and economy that are missing from Asimov's later novels.' - Anatomy of Wonder (2004) II-48. which was only the second genuine singleton of his career and which won both Hugo and Nebula awards, proved to be his finest single creation, a complex tale involving potentially catastrophic energy transfers between alternate universes and - rarely for him - intriguing alien beings (they are considerably more interesting than the humans in the cast).' - John Clute / Malcolm J. The blind egotism and leaden conscience of his scientific establishments offer no promise that a world ruled by scientists rather than politicians would be more free of it.' - Berger, Science Fiction and the New Dark Age, p. The 'fathers' of the energy pumps, puffed with pride and selfishness, will not allow their reputation, doctrine, and achievement to be jeopardized.

A few probing skeptics, men and para-men, learn that in time the exchange will explode our Sun, but both scientific establishments ignore their alarm. Through Earthmen's electron pump and the para-men's position pump, the energy needs of both worlds are satisfied without energy loss to either.

'In the twenty-second century, Earth and men of a para-universe establish an ideal energy exchange.

Asimov the gods themselves