The Towers of Toron is a 1964 science fiction

Science fiction

Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

 novel

Novel

A novel is a book of long narrative in literary prose. The genre has historical roots both in the fields of the medieval and early modern romance and in the tradition of the novella. The latter supplied the present generic term in the late 18th century....

 by Samuel R. Delany

Samuel R. Delany

Samuel Ray Delany, Jr., also known as "Chip" is an American author, professor and literary critic. His work includes a number of novels, many in the science fiction genre, as well as memoir, criticism, and essays on sexuality and society.His science fiction novels include Babel-17, The Einstein...

, and is the second novel in the "Fall of the Towers

The Fall of the Towers

The Fall of the Towers is a trilogy of science fiction books by Samuel R. Delany.First published in omnibus form in 1970, the trilogy was originally published individually as Captives of the Flame , The Towers of Toron , and City of a Thousand Suns...

" trilogy.. The novel was originally published as Ace Double F-261, together with The Lunar Eye by Robert Moore Williams

Robert Moore Williams

Robert Moore Williams , born in Farmington, Missouri, was an American writer, primarily of science fiction. Pseudonyms included John S Browning, H. H. Hermon, Russell Storm and E. K. Jarvis ....

.

The stories of the Fall of the Towers trilogy were originally set in the same post-holocaust Earth as Delany's earlier The Jewels of Aptor

The Jewels of Aptor

The Jewels of Aptor is a 1962 science fiction novel by Samuel R. Delany, and is Delany's first published novel. Prior to this, he had sold a pair of articles to Seventeen Magazine, only one of which was printed...

, linking references however were removed in later revised editions.