One of the very best must-read novels of all time - with a new introduction by Roddy Doyle''A well told tale signifying a good deal; one to be read again and again'' THE TIMES''The book I wish I had written ... It''s so far away from my own imagination, I''d love to sit at my desk one day and discover that I could think and write like Ursula Le Guin'' Roddy Doyle''Le Guin is a writer of phenomenal power'' OBSERVER''There was a wall. It did not look important - even a child could climb it. But the idea was real. Like all walls it was ambiguous, two-faced. What was inside it and what was outside it depended upon which side of it you were on...''Shevek is brilliant scientist who is attempting to find a new theory of time - but there are those who are jealous of his work, and will do anything to block him. So he leaves his homeland, hoping to find a place of more liberty and tolerance. Initially feted, Shevek soon finds himsel