Next of Kin, also known as The Space Willies, is a science fiction comic novel by English writer Eric Frank Russell. It is the story of a military misfit who successfully conducts a one-man psychological warfare operation against an alien race, with whom humans and allied races are at war. It was published under the title Next of Kin in 1959. A novella-length version was published in Astounding Science Fiction in 1956 as "Plus X", then published in somewhat expanded form by ACE Books as The Space Willies in 1958. Source: Wikipedia (en)