It’s the end of the world. Terrifying static ghosts have taken over every major city on the planet. Cleo and Shawna are running for their lives, Abby is entangled with UNIT, and Madame Vastra wants them to meet her oracle – an individual with extensive knowledge of both space and time. Credits: Cleo Proctor - Charlie Craggs Abby McPhail - Lois Chimimba Shawna Thompson - Holly Quin-Ankrah Madame Vastra - Doon Mackichan The Floater - Alasdair Beckett-King Captain Chopra - Ambika Mod Jordan Proctor - Jacob Hawley Written by David K. Barnes Additional Writing by Juno Dawson Produced and Directed by Ella Watts Executive Producer: James Robinson Sound Engineer: Paul Clark Studio Assistant: Jacob Tombling Sound Design: David Thomas Additional Sound Design: Arlie Adlington Original Composition: David Devereux Production Co-ordinators: Sarah Sharpe and Sarah Nicholls Script Editor: Tasha Dhanraj Recorded at Sonica Studios, Clapham. A BBC Studios Production for BBC Sounds.