Mars Plus: Frederik Pohl, Thomas T. Thomas

Book II of Man Plus. After fifty years, Man is - or seems to be - on Mars to stay, but things have become...strange, even compared to the population of cyborgs, half cyborgs and humans who now occupy the Red Planet. The computer net on which all Martian life relies has long seemed to have 'a mind of its own' and now that mind would appear to be in a very bad mood...Cover art by Stephen Hickman.