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

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.

As a child I always steered clear of science fiction, but in the autumn of 1977 the bow-wave of publicity for the first Star Wars movie had already reached me, so I was eager for anything science-fictional.

Fever jumped aside just in time to dodge the shower of urine, and stumbled into the path of a religious procession - celebrants in robes and pointed hats whirling and clapping and chanting the name of some old-world prophet, 'Hari, Hari! Hari Potter!'

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

Sometimes, on our way through the world, we meet someone who touches our heart in a way others don't.

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.