The Locked Room (audio story)

 was the fourth and final story in the 2015 The Companion Chronicles audio box set The First Doctor: Volume One.

Publisher's summary
Steven Taylor left the Doctor and the TARDIS to become king of an alien world. But it's now many years since he gave up the throne and went to live in a cell in the mountains, out of sight of his people. He's not escaping his past — quite the opposite, in fact. As his granddaughter, Sida, is about to discover...

Plot
to be added

Cast

 * Steven Taylor - Peter Purves
 * Sida - Alice Haig
 * Vardan - Lisa Bowerman

Worldbuilding

 * Steven tells Sida that unlike the stories he tells her, time travel is dangerous and he lost many people, including Bret Vyon, Katarina, Sara Kingdom and Oliver Harper.
 * The Doctor wonders how Steven was able to determine his location in space and time.
 * The Vardan has been manipulating Steven ever since he gave up his throne.

Continuity

 * Sida was elected President three years earlier. (AUDIO: The Founding Fathers)
 * Steven is attempting to find a way to contact the Doctor. (AUDIO: The Founding Fathers)
 * The Doctor tells Steven that he is dying. (TV: The Tenth Planet)
 * Sida refers to the duplicate of the Doctor's mind in the jar. (AUDIO: The War To End All Wars, The Founding Fathers)
 * The Doctor tells Steven and Sida that he is at the South Pole on Earth trying to save the world. (TV: The Tenth Planet)
 * Sida refers to the deaths of Bret Vyon, Katarina, Sara, (TV: The Daleks' Master Plan) and Oliver. (AUDIO: The First Wave)
 * The Doctor, Steven and Oliver previously encountered the Vardans on Grace Alone, which resulted in Oliver's death. He combined with the consciousness of the Vardan, remained within the TARDIS and witnessed the Doctor's regeneration. (AUDIO: The First Wave)
 * Sida discusses how Steven's favourite daughter, and her aunt, Dodo, was murdered by assassins during the war. (AUDIO: The War To End All Wars)
 * Steven reminds the Doctor that he abandoned Anne Chaplet to most probably die in the St Bartholomew's Day massacre on 24 August 1572. (TV: The Massacre)
 * The Vardan tells Sida that Steven once considered leaving the TARDIS because of the Doctor's callous attitude. (TV: The Massacre)