Every Dark Thought (audio story)

 was the first story in the Bernice Summerfield box set The Story So Far: Volume Two.

Publisher's summary
The Doctor has asked for Benny's help digging up some mysterious ruins. He claims they contain the secret of eternal life. Why would the Doctor want that?

Plot
to be added

Cast

 * Bernice Summerfield - Lisa Bowerman
 * The Valeyard - Michael Jayston
 * Professor Liyi - Liz Sutherland-Lim
 * Chorus - Mark Elstob

Continuity
to be added