Sinister Barrier by Eric Frank Russell:
Science Fiction Inventions, Technology and Ideas
Scientists die mysteriously; pale blue spherical creatures feed on energy of human emotions. Who will triumph?
Famously, Russell derived his idea from writings by Charles Fort:
But perhaps my greatest debt is to two
friends, one of whom asked me, “Since everybody wants peace, why don’t we get it ?”
while the other posed me this one, “If there
are extra-terrestrial races further advanced
than ourselves, why haven’t they visited us
already?” Charles Fort gave me what may
well be the answer. He said, “1 think we’re
An apparently ordinary ring, which minutely describes and identifies its wearer.
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