Serpent Crest is an audio play in five episodes based on the long-running British science fiction television series Doctor Who. It is written by Paul Magrs, and stars Tom Baker as the Fourth Doctor and Richard Franklin as Captain Mike Yates. It was released on five CDs by BBC Audiobooks between September and December 2011 and is a sequel to 2009's Hornets' Nest and 2010's Demon Quest. They feature multiple actors, but four of the episodes contain some degree of narration by different characters, the exception being the first episode, Tsar Wars. Serpent Crest Tsar Wars (released 8 September 2011) The Doctor and Mrs Wibbsey are kidnapped by menacing robots and transported through a wormhole to an extravagant palace, floating in space, a hundred thousand years in the future. A colony of humanoid robots have overthrown their creators and forged a longstanding galactic empire. But now the humans are threatening to overthrow their Robotov Tsars. In an attempt to bring peace, the Tsarina creates Alex, a cyborg infant. And at his heart is a deadly Skishtari Egg. Cast The Doctor / Father Gregory – Tom Baker Mrs. Wibbsey – Susan Jameson Tsar – Michael Jayston Tsarina – Suzy Aitchison Boolin – Simon Shepherd Servo 53 / Lucius – Sam Hoare Servo 96 / Kani – Paul Chequer Servo 51 / Bellis – Gabriel Vick Servo 14 / Tarnak – Grant Gillespie The Broken Crown (released 6 October 2011) Wibbsey and the Doctor traverse the wormhole back to Nest Cottage. But Nest Cottage hasn't been built yet. This is Hexford Village in the year 1861. And the TARDIS is a century and a half in the future. They also discover a thirteen-year-old boy with a paper face. And his favourite toy is the powerful Skishtari Egg. Cast The Doctor – Tom Baker Mrs Wibbsey – Susan Jameson Mr Bewley – Simon Shepherd Andrew – Guy Harvey Reverend Dobbs – Terrence Hardiman Mrs Audley – Joanna David Harold – Geoff Leesley The Cook – Su Douglas Jake – Charlie Mitchell Sally – Elinor Coleman Aladdin Time (released 3 November 2011) Alex, Wibbsey and the Doctor have been pulled within the Skishtari Egg. Now they find themselves trapped in Aladdin's Cave, a labyrinth of magical rooms and strange characters. Cast The Doctor – Tom Baker Mrs Wibbsey – Susan Jameson The Magician – Simon Shepherd Aladdin – Guy Harvey Scarf – Andrew Sachs