Notes
First published by Doubleday in 1968.

Publisher's Blurb
Every human need was fulfilled in the 25th century but they still yearned to escape

"If one prevents a person from escaping into the past, in which his earlier existence is attested, would his now living descendants be snuffed out? ... Here is a fable of over-population, handled with just the right mixture of sympathy and sardonic humour"
Daily Telegraph

"An ingenious, lively tale"
Bunch

"Most readable and more than capable"
Brian Aldiss, Oxford Mail

"A very well-written novel which gives a chilling but by no means incredible picture of life in the future"
Peebleshire News

"Beautifully designed, deploying standard SF components in interesting new patterns"
Times Literary Supplement

Robert Silverberg is a winner of the coveted Hugo Award conferred by the World Science Fiction Convention. He is a past President of the Science Fiction Writers of America, and has written hundreds of science-fiction short stories and over twenty science-fiction novels.