Fury

Originally serialised in "Astounding Science Fiction" in 1947. First book edition in 1950. Later republished as Destination: Infinity.

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The Earth is long since dead, blasted in a self sustaining chain reaction. Human survivors settled on Venus have organized themselves into a static, class-ridden society living in huge citadels buried beneath the Venusian seas.

The rulers are Immortals, genetic mutations who live a thousand years or more. Their subjects are the ordinary people – with normal life-spans.

Sam Reed's insane father had him mutilated as a baby so that he doesn't realize he's an Immortal until he reaches the age of eighty.

Then he goes looking for revenge...