Out this month from the digital only Short Trips line is a 6th Doctor and Constance story narrated by Miranda Raison. You can order this release from the Big Finish website.
Mrs Constance Clarke has faced perils on many planets, but now she finds herself in the most dangerous place on Earth. A place like home, yet terrifyingly different, where ordinary decent folk might hand her over to a dreadful fate. And as night falls, she and the Doctor realise that something is on the prowl outside, a creature darker than the dark. And hungry...
Producer Ian Atkins
Script Editor Ian Atkins
Executive Producers Jason Haigh-Ellery and Nicholas Briggs
Written By: John Pritchard
Directed By: Lisa Bowerman
Miranda Raison (Narrator)