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Null-A Three, usually written Ā Three, is a 1985 science fiction novel by A. E. van Vogt. It incorporates concepts from the General semantics of Alfred Korzybski and refers to non-Aristotelian logic.

Null-A Three
Cover of the first edition
AuthorA. E. van Vogt
Cover artistBruce Pennington
CountryUnited States
GenreScience fiction
PublisherSphere Books
Media typePrint
Preceded byThe Pawns of Null-A 

The novel is a continuation of the adventures of Gilbert Gosseyn from The World of Null-A (1945) and The Pawns of Null-A (1948).


Gilbert Gosseyn wakes to find he is Gosseyn Three, in telepathic contact with Gosseyn Two. One of the spare bodies used in his reincarnation machinery was found and forced to life by the approach of an immense space fleet from another galaxy, manned by the primordial ancestors of man, gripped in an eon-long war with mutants equally old. The space-fleet is ruled by an unstable youngster who seems to possess many of the same powers, including a double-brain, as Gosseyn.

Gosseyn must school the youth in Null-A sanity, save the Earth from a cabal of gangsters and businessmen who oppose the return of the Games Machine, discover the secret reasons behind the endless horrifying war, and stop the intrigues of Enro the Red to return to power.


Many critics regard Null-A Three as the weakest of the Null-A books,[citation needed] and the estate-authorized Null-A sequel Null-A Continuum ignores its events.[citation needed]

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