Classic SF from the author of This Island Earth.
One was discovered quite by accident. A man in a mental hospital said he wasn't real. He wasn't.
There were more. Scientists feared that half the population of Earth might be Syns.
Methodically, the Syns were being rooted out and destroyed. In turn, they were carrying on their own fearful destruction of human life and works.
Everyone's humanity had been challenged. Every man was aligned against each other...because no one knew what a Syn was.
Raymond F. Jones (1915 - 1994)
Raymond Fisher Jones was born in Utah in 1915 and was a regular contributor to Astounding Stories and Galaxy Science Fiction among other pulp SF magazines. He is best known for the 1952 novel This Island Earth, which was famously filmed in 1955, one of the first major SF films to be produced in Technicolor. He died in Utah in 1994.