Secretly silently, the form-less shapeless horror of the Cosmozoids turned men into hulking zombies.
An alien power planned to infect all human intelligence and take over control of the world.
By accident, Jim Keith dis-covered what he could do to the Cosmozoids with high-frequency sound waves .
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Paperback, good condition. Slight wear to cover edges, small tear on front cover upper left corner.
Published by Belmont Books, 1966. First US paperback edition.