Frederik Pohl

* #41 in the Millennium SF Masterworks series, a library of the finest science fiction ever written.

* 'Frederik Pohl, one of the old pros of the genre, never takes unnecessary risks. For him, science fiction is a form of play - an excusable indulgence since he plays it so much better than most people.' The New York Times Book Review

* 'The most consistently able writer science fiction has yet produced' -- Kingsley Amis

* 'One of Frederik Pohl's best novels - and my personal
favourite. Complex people in tough situations on a marvelous and gritty
world - who could ask for more from any novel?' Greg Bear