Every Dark Thought (audio story)

 was the first story in the Bernice Summerfield box set The Story So Far: Volume Two. It was the first time Benny encountered the Valeyard.

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 Chen - Liz Sutherland-Lim
 * Chorus - Mark Elstob
 * The Caragot - Ross Ford

Continuity

 * Benny has met the Doctor when he was younger, (AUDIO: Benny's Story) and when he was older. (PROSE: Big Bang Generation)
 * The Cloister Bell rings. (TV:  Logopolis , et all)
 * The Doctor has a knife from an 18th century Chinese assassin. (TV:  The Talons of Weng-Chiang )
 * The Doctor implies to Benny that she's not the only archeologist he's travelled with. ( TV :  Silence in the Library ,  COMIC :  The Swords of Kali )
 * Benny mentions the Doctor doing his "big picture" stuff. (PROSE: Theatre of War, AUDIO: The Shadow of the Scourge)
 * The Valeyard mentions the Doctor trying to deny him his right to exist. (AUDIO: The Brink of Death)