The Edge (CC audio story)

 written by Rob Nisbet was the fourth and final story in the 2016 Companion Chronicles audio box set The Second Doctor: Volume One. It featured Jamie and Zoe.

Publisher's summary
The Edge is the galaxy's scientific hub of experimentation, theoretical breakthroughs and invention — just the sort of place to interest the Doctor and Zoe. However, a secret lies hidden in The Edge laboratories. Jamie instinctively knows that something is wrong, and it doesn't take long for him to be proved right...

Part one
to be added

Part two
to be added

Cast

 * The Doctor/Jamie - Frazer Hines
 * Provost Curtis/Sebastian - Robert Whitelock

Continuity

 * Jamie remembers Ben and Polly explaining trains and tracks to him a long time ago. (AUDIO: The Mouthless Dead)