The Doctor and His Amazing Technicolour Nightmare Coat (audio story)

 was the fifth audiobook released in the Interludes series. It was released as a bonus download with the audio anthology Purity Unleashed. It was written by Gary Russell and featured the Sixth Doctor and Melanie Bush.

Publisher's summary
A loose thread on his spectacular coat ties the Doctor and Mel into complicated knots. With an obstreperous otter and assorted cloned bureaucrats on their coat-tails, they have to unravel a multitude of scams and schemes to get the Doctor's coat – and his TARDIS – back.

Plot
The Doctor and Mel arrive on Kolpasha to get a loose thread on the Doctor's coat fixed at S. Holtons, but they find the city empty. Three months later, the two of them meet up at the spaceport and discuss how Mel had to work as a janitor to make money to pay Holtons, how she gave it all to a six-foot otter when the Doctor accidentally stole his profits and a T-shirt and how the Doctor has since used the profits to pay for the SS Signey shuttle to Golm where the TARDIS has been impounded. Their movements are watched by the various Ernold clones, one of whom places a microcircuit tracker on the Doctor.

The SS Signey is hijacked by a student who intends to take everyone aboard to Evenni to be ransomed to their homeworlds, a scheme which the Helios Fleet is likely in on, but another student accidentally damages the controls with his blaster and the Doctor has to repair them. For saving the shuttle and getting everyone to Golm, the Doctor is awarded money from the Helios Fleet which he uses to pay S. Holtons. He confronts the Ernolds at Transwarp Collection Inc. for placing the tracker on him and has the TARDIS returned, but the otter and his mercenaries, Lloyd and Connor, attack.

The Doctor and Mel claim not to have taken any money from the otter and Lloyd and Connor admit that they do not know for sure that any money has gone missing. The otter and his bodyguards leave by transmat to check the surveillance at the shop and the Doctor and Mel threaten to expose the Ernolds' agreement with the Helios Fleet to claim that their transmats are unsuitable for organic matter. The Doctor reclaims his coat from S. Holtons and returns the money to the otter's safe before leaving Kolpasha with Mel, who thinks about the many ways that she would like to get rid of the coat.

Characters

 * Sixth Doctor
 * Melanie Bush
 * Ernold
 * Otter
 * Cutesy-voiced woman
 * Evenni student 1
 * Lloyd
 * Connor

Worldbuilding

 * Mel mentions John Steed.
 * Mel drinks hot chocolate despite knowing that it is bad for her.
 * The Ernolds share information such as the lottery numbers on Lyndyaz.
 * An Ernold places a microcircuit tracker on the Doctor.
 * Transwarp Collection Inc. impounds the TARDIS.
 * Helios Cunelm owns Helios Fleet.
 * The Doctor suggests that Mel talk to Evenni student 1 about carrot juice.
 * Mel drinks prune juice.
 * Lloyd and Connor use thermal bazookas.

Continuity

 * Mel mentions Gallifrey and "that Inquisitor woman". (TV: The Ultimate Foe)
 * The Doctor no longer has a sonic screwdriver. (TV: The Visitation)
 * Mel is described as truthful, honest and boring. (TV: The Ultimate Foe)