The Black Hole (audio story)

 was the third story of the second series of The Early Adventures, produced by Big Finish Productions. It was written by Simon Guerrier, narrated by Frazer Hines and Deborah Watling and featured the Second Doctor, Jamie McCrimmon and Victoria Waterfield.

The story is notable in that it offers an alternate account of Second Doctor's history with regard to The Two Doctors to the Season 6B theory, explaining why the Doctor was working for the Time Lords and why Jamie was aware of their existence. This puts it at odds with the earlier novel World Game, which takes place, and therefore places The Two Doctors, after The War Games.

Publisher's summary
On a research station near a black hole, time keeps standing still. Investigating the phenomenon, the Doctor, Jamie and Victoria discover a power far greater than any of the monsters that have challenged them on their travels... The Doctor's own people.

With the safety of thousands balancing out the need to flee, and a policeman from his home planet working at his side, the Doctor reluctantly finds himself involved in a race against time.

But nothing is ever as simple as it appears. And if you can use the Doctor's compassion against him, you have the makings of a perfect trap...

Plot
to be added

Cast
Narrated by David Warner
 * Jamie McCrimmon/The Doctor - Frazer Hines
 * Victoria Waterfield - Deborah Watling
 * - Rufus Hound
 * Commander Flail - Janet Dibley
 * The Seeth/Pavo (uncredited) - Anthony Keetch
 * Woman (uncredited) - Lisa Bowerman

Continuity

 * The Doctor's companions tease at how he landed the TARDIS the correct way up this time. The console room is still a mess from the previous landing. (TV: The Ice Warriors)
 * When Jamie asks why he, the Doctor and Victoria, are unaffected by effects of the black hole warping space and time, the Doctor says that travelling in the TARDIS grants them a "different relationship" with time (TV: Flesh and Stone) along with some immunity (TV: Reset) or sensitivity.
 * Victoria recalls encountering evil scientists, including Theodore Maxtible (TV: The Evil of the Daleks) and Eric Klieg. (TV: The Tomb of the Cybermen)
 * The Doctor tells Jamie and Victoria that if they encounter his people, it will mean the end of their travels together. The Doctor wonders if he will be arrested by the Time Lords. (TV: The War Games)
 * Victoria asks the Doctor if he ran away from his people. (TV: An Unearthly Child, AUDIO: The Beginning et al.)
 * After these events, the Doctor and his friends have their memories erased, which is why Jamie does not know of the Time Lords when the Doctor summons their aid. (TV: The War Games)
 * The TARDIS' interior is modified to be synchronised with Gallifrey. (TV: The Two Doctors)
 * Victoria is studying graphology in the library. (TV: The Two Doctors, AUDIO: Helicon Prime)
 * Victoria talks about how her father was a scientist. (TV: The Evil of the Daleks)
 * The Monk says he first met the Doctor when disguised as a monk. (TV: The Time Meddler)
 * The Monk engineers a Sontaran attack. Jamie mentions meeting the Sontarans a couple of weeks ago, before returning to where they originally landed. (TV: The Two Doctors)
 * The Monk thinks Dastari could provide a good distraction for the Doctor and Jamie. The Doctor says that as he was busy with the Sontarans, they will pop back and visit him later. (TV: The Two Doctors)
 * Pavo is able to regenerate into a female form. (TV: The Doctor's Wife, Dark Water, Hell Bent, Twice Upon a Time)