The Interplanetarian (audio story)

 was the third story in the audio anthology, 1001 Nights, which comprised the one hundred and sixty-eighth release in Big Finish's monthly range. It was written by Jonathan Barnes and featured Peter Davison as the Fifth Doctor and Sarah Sutton as Nyssa.

Summary
Nyssa has been possessed by a malevolent entity. Can the power of words save her?

Plot
to be added

Cast

 * The Doctor - Peter Davison
 * Nyssa - Sarah Sutton
 * Elizabeth Spinnaker - Debbie Leigh-Simmons
 * Hill - Oliver Coopersmith

Continuity

 * The Doctor uses the word "Tremas" to defeat the Interplanetarian. (TV: The Keeper of Traken)