The Wrong End of Time by John Brunner
DAW Books, 1971
Price I paid: 90¢
The time is the future. The place, an America so isolated by fear that it is cut off from the rest of the world by a massive defense system. Into this armed, barricaded state comes a young Russian scientist bearing a strange—and almost unbelievable story:
Superior, intelligent life—of a far higher order than any on earth—has been detected near the planet Pluto. Immune themselves by virtue of their far greater intelligence, these Aliens are about to destroy the planet Earth.
Schlock Value 