The Ghosts of N-Space is a radio drama based on the long-running British science fiction television series Doctor Who.

It was written by Barry Letts, and featured Jon Pertwee as the Third Doctor, Nicholas Courtney as Brigadier Lethbridge-Stewart and Elisabeth Sladen as Sarah Jane Smith.

Sarah Jane Smith and her co-worker Jeremy Fitzoliver are on holiday in Sicily when they meet the Brigadier.

Vilmius' men storm the castello, allowing Vilmio access to the N-Space fracture.

Barry Letts' novelisation of the script was released as part of the Virgin Missing Adventures range of spin-off novels in 1995, nearly a year before the broadcast of the serial (the first BBC novelisation to not be published under the Target Books range, which had been retired the previous year).