Sinister Barrier Author:Eric Frank Russell TIME - 21sT CENTURY — PLACE - AMERICA — CRISIS - A WORLD GONE MAD — PRESIDENT'S WARNING - DESTROY THE VITON MENACE - OR EARTH HAS ONLY 80 HOURS TO LIVE! — Bill Graham was among the scientists and government leaders left who heard the President's message. He shuddered at the thought of the last Viton rampage of kid?napping, ghastly murder and madness... more ».
Hidden somewhere in the vastness of the galaxy, the hideous blobs of Viton, that fed on men's fears and emotions, planned a last-ditch attack to destroy the universe.
Only Bill Graham had a one-in-a-mi Ilion chance to stop them. But the Vitons were so deadly that even to think about them risked instant annihilation« less
Don't you just love early science fiction? Original copyright 1939. A lot like Flash Gordon or Doc Savage, only without as much hokiness. Scientist cum G-Man. An old book, but a fun read.