“I WRITE instinctively, responding to impulses,” says Christopher Priest. “Most of my books since The Affirmation have a double quality — on one level, the main one, they are stories to be told, intended to be enjoyed, and which will probably contain some ideas that intrigue the reader.

“The second level is a sort of invitation to the reader to join in the process, to see and understand the book from another viewpoint, to accept that it is fiction.”

Written in 1981, The Affirmation is set in a region of wonders called the Dream Archipelago. It was my portal into Priest’s witty and philosophical science fiction, which tackles deception, the plasticity of reality and the malleable nature of memory and perception. Subverting genre conventions, it explores the nature of storytelling.