CITY

Methuen paperback, 1988. Cover illustration: Nick Rogers.

"Jenkins was a robot. He was built to be the perfect worker, tireless and uncomplaining, but quite unexpectedly he also became a close companion to generation after generation of his owners as the human race matured, moved beyond the confines of its one tiny planet, and eventually changed beyond all recognition. And then, because he was a good and dutiful servant, Jenkins went on to serve Earth's inheritors.... 

Here is a masterful tale of an Earth overrun by ants, a series of parallel worlds ruled by dogs, and a Jupiter where the human race finds its Golden Age - if human it could still be called."