''Cyborg IV'' is a

science fiction Science fiction (sometimes shortened to Sci-Fi or SF) is a genre of speculative fiction which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel uni ...

secret agent Espionage, spying, or intelligence gathering is the act of obtaining secret or confidential information (intelligence) from non-disclosed sources or divulging of the same without the permission of the holder of the information for a tangib ...

novel by

Martin Caidin Martin Caidin (September 14, 1927 – March 24, 1997) was an American author, screenwriter, and an authority on aeronautics and aviation. Caidin began writing fiction in 1957. In his career he authored more than 50 fiction and nonfiction books ...

that was first published in 1975. It was the fourth and final book in a series of novels Caidin began in 1972 with ''

Cyborg A cyborg ()—a portmanteau of ''cybernetic'' and ''organism''—is a being with both organic and biomechatronic body parts. The term was coined in 1960 by Manfred Clynes and Nathan S. Kline.

'', profiling the adventures of astronaut

Steve Austin Steve Austin (born Steven James Anderson; December 18, 1964), better known by his ring name "Stone Cold" Steve Austin, is an American media personality, actor, and retired professional wrestler. Widely regarded as one of the greatest and most ...

, who becomes a spy for the American government after an accident that requires the replacement of numerous body parts with high-powered machines. ''Cyborg IV'' was published after Caidin's original novel was adapted into a television series entitled ''

The Six Million Dollar Man ''The Six Million Dollar Man'' is an American science fiction and action television series, running from 1973 to 1978, about a former astronaut, USAF Colonel Steve Austin, portrayed by Lee Majors. After a NASA test flight accident, Austin is re ...

''. Confusingly, therefore, its first paperback publication by

Warner Books Grand Central Publishing is a book publishing imprint of Hachette Book Group, originally established in 1970 as Warner Books when Warner Communications acquired the Paperback Library. When Time Warner sold their book publishing business to Hachet ...

was issued as Volume 6 in Warners' ''Six Million Dollar Man'' book series (the only other Caidin work to be published in this series was ''

High Crystal ''High Crystal'' is a science fiction/secret agent novel by Martin Caidin that was first published in 1974. It was the second sequel to Caidin's 1972 work ''Cyborg'', which in turn was the basis for the television series ''The Six Million Dollar ...

''), even though Caidin's ''Cyborg'' continuity is separate from that of the other ''Six Million Dollar Man''-branded novels by authors such as Mike Jahn and Jay Barbree which were novelizations based upon teleplays.

Plot summary

In ''Cyborg IV'', Caidin takes the notion of

cyborg A cyborg ()—a portmanteau of ''cybernetic'' and ''organism''—is a being with both organic and biomechatronic body parts. The term was coined in 1960 by Manfred Clynes and Nathan S. Kline.

to new extremes as Steve Austin's consciousness is hooked up to a next generation spacecraft, creating a new form of union between man and machine. Meanwhile, an enemy force plans to use similar technology for their own ends. 1975 American novels American science fiction novels American spy novels Bionic franchise Novels by Martin Caidin Arbor House books {{1970s-spy-novel-stub