Hammerfall

Hammerfall is a science fiction novel by American science fiction and fantasy author C. J. Cherryh. It was first published in June 2001 in the United States by HarperCollins under its Eos Books imprint. It was also serialized in two parts as Ribelle Genetico and Il Pianeta del Deserto in the Italian science fiction magazine, Urania, published in issue 1425 in October 2001, and issue 1430 in January 2002, respectively.