The discovery of another habitable world might spell salvation to the three bitterly competing power blocs of the resource-starved 21st century; but when their representatives arrive on Jem, with its multiple intelligent species, they discover instead the perfect situation into which to export their rivalries. Subtitled, with savage irony, 'The Making of a Utopia', Jem is one of Frederik Pohl's most powerful novels.

Ill luck made Roger Torraway the subject of the Man Plus Programe, but it was deliberate biological engineering which turned him into a monster — a machine perfectly adapted to survive on Mars. For according to computer predictions, Mars is humankind's only alternative to extinction. But beneath his monstrous exterior, Torraway still carries a man's capacity for suffering.