''The Radix Tetrad'' is a group of four

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 unive ...

books by

A. A. Attanasio Alfred Angelo Attanasio, born on September 20, 1951, in Newark, New Jersey, is an author of fantasy and science fiction. His science fiction novel ''Radix'', winner of the French literary award, the Prix Cosmos 2000, was also nominated for the ...

. The first novel, the

Nebula Award The Nebula Awards annually recognize the best works of science fiction or fantasy published in the United States. The awards are organized and awarded by the Science Fiction and Fantasy Writers of America (SFWA), a nonprofit association of profe ...

-nominated ''

Radix In a positional numeral system, the radix or base is the number of unique digits, including the digit zero, used to represent numbers. For example, for the decimal/denary system (the most common system in use today) the radix (base number) is t ...

'', was published in 1981, and the last novel, ''

The Last Legends of Earth ''The Last Legends of Earth'' is a 1989 science fiction novel by A. A. Attanasio, the fourth and final novel in his Radix Tetrad series. It contains the continuing story of the conflict between the humans, zōtl, Rimstalkers, other spatial dime ...

'', was published in 1989. All four books of the Tetrad are being re-issued by

Phoenix Pick Phoenix Pick is the science fiction and fantasy imprint of Arc Manor Publishers based in Rockville, Maryland, United States. Phoenix Pick publishes many classic and semi-classic works of science fiction and fantasy. These include '' Dark Unive ...

, an imprint of Arc Manor Publishers.

The Tetrad

*''

'' (1981) *''

In Other Worlds ''In Other Worlds'' is a 1985 novel by American writer A. A. Attanasio, the second in his Radix Tetrad. It contains humans, zōtl, Rimstalkers, other spatial dimensions, and time-travel/temporal distortion as do other novels in the Radix ser ...

'' (1984) *''Arc of the Dream'' (1986) *''

'' (1989)

References

{{Reflist

External links

Radix Tetrad Site
Science fiction book series