Harry's lives always begin in the same way, place and time and with the same mandate - his kind must not change human history on a large scale. But what if not all agree? Philip K Dick meets Len Deighton - in this enthralling, dryly witty, page-turner.
'In a little over twenty years man will walk on the moon. Hundreds of thousands will die in Vietnam for no apparently sensible reason. ... We know all of this and we do ... nothing. I'm not suggesting we change the world. I'm not suggesting we know how. What will the future be if these things do not come to pass? But we must do ... something.'
I found the gesture strangely annoying.