Seized by robots, the Fourth Doctor and Mrs Wibbsey are taken to a space palace 100,000 years in the future. Stars Tom Baker.

Seized by intimidating robots, the Fourth Doctor and Mrs Wibbsey are taken to an elaborate space palace, 100,000 years in the future.

Tom Baker stars as the Fourth Doctor.

The first part of Serpent Crest - an exciting five-story adventure written by Paul Magrs.

The Doctor ...... Tom Baker

Mrs Wibbsey ...... Susan Jameson

Tsar ...... Michael Jayston

Tsarina ...... Suzy Aitchison

Boolin ...... Simon Shepherd

Producer: Kate Thomas

Made by BBC Audio and reversioned for broadcast by BBC Radio 4 Extra.