When I was quite small I would sometimes dream of a city - which was strange because it began before I even knew what a city was. But this city, clustered on the curve of a big blue bay, would come into my mind. I could see the streets, and the buildings that lined them, the waterfront, even boats in the harbour; yet, waking, I had never seen the sea, or a boat. ...
And the buildings were quite unlike any I knew. The traffic in the streets was strange, carts running with no horses to pull them; and sometimes there were things in the sky, shiny fish-shaped things that certainly were not birds.
Most often I would see this wonderful place by daylight, but occasionally it was by night when the lights lay like strings of glow-worms along the shore, and a few of them seemed to be sparks drifting on the water, or in the air.
It was a beautiful, fascinating place, and once, when I was still young enough to know no better, I asked...