The Nightmare Fair is a story originally written for the 1986 season of "Doctor Who", but never filmed. A novelisation based on the script was published in 1989 by Target Books, as the first volume of its "Missing Episodes" series. The script and novelisation were written by former series producer Graham Williams, and would have been directed by Matthew Robinson had it gone to air. It is the first novel-length text featuring The Doctor not to be based upon a previously transmitted production, although being a novelisation it is not strictly speaking an "original" novel.