apparently they will live about an hour from Norwich.

An hour how? Public transport in East Anglia isn't that great - the bus service is patchy and the trains are expensive.

It's been horribly yuppified, housing prices have increased further in the last generation than anywhere else in Britain. The houses Harry Cox and Sam Larner lived in have probably been refitted to suit a banking executive with two BMWs.

It won't take much global warming to have Norwich Castle's hill sticking up out of the water like Mont St Michel or Eilean Donan.