Moving cities are a fairly hoary old sci-fi trope - I seem to recall they were always cropping up on Doctor Who when I was young, though I may be misremembering.

But we're alive, and together, and we're going to be all right.

Is it...dead?" asked Tom, his voice all quivery with fright. "A town just ran over him," said Hester. "I shouldn't think he's very well.

Godshawk looked surprised, the way that people generally do when you ask them philosophical questions in shrubberies in the middle of the night.

Even tiny children looking at a picture book are using their imaginations, gleaning clues from the images to understand what is happening, and perhaps using the throwaway details which the illustrator includes to add their own elements to the story.

An Engineer is no match for a Historian with his dander up!

It was a dark, blustery afternoon in spring, and the city of London was chasing a small mining town across the dried-out bed of the old North Sea.