Doctor Who: The Sixth Doctor Adventures: The Cosmos and Mrs Clarke

The Doctor meets old friends - and old enemies. But which is which - and who is Who? One thing is sure: they all have a story to tell...

The Story Demon by Julian Richards.

The Doctor and Mrs Clarke find themselves on a forest world where human settlers shelter from the night in a village built from wrecked spaceships, living in fear of the Birnamen, creatures who raid their settlement leaving death in their wake. But are the Birnamen really to blame? Or does the truth lie with the villagers' 'Story Demon', the hollow travel casing of a very familiar alien creature which they use to entertain their children...

The Key to Many Worlds by Paul Magrs.

The Doctor and Constance arrive in thirteenth century Baghdad and encounter an ageing and disenchanted Marco Polo. His adventures at an end, he has been ordered to transport a certain enchantress back to the Doge's palace in Venice. The Doctor realises his danger too late, as his mind and body are swapped with those of the enchantress - the notorious Iris Wildthyme! Now clapped in irons and trapped in Iris's form, the Doctor is dragged along in Marco's caravan as it trails across the desert once more... and only Mrs Clarke can save him.

Inconstancy by Ian Potter.

On the highly regulated colony world of Hoi, the Doctor is captured by the authorities and taken to the forbidden zone for 're-education'. Mrs Clarke escapes and discovers an amorphous being in hiding. This protean creature craves purpose and identity, and wants Constance to make it an instrument of her will. Desperate to rescue the Doctor, she agrees - and suddenly Hoi is threatened by a swarm of wild and ravenous Mrs Clarkes!

Cast: Colin Baker (The Doctor), Miranda Raison (Constance Clarke), Katy Manning (Iris Wildthyme), Terry Molloy (Marco Polo), Anthony Townsend (Tonio), Nicholas Briggs (The Story Demon / Dalek Mutant), Carly Day (Birch), Cameron Johnson (Hoekstra), Lara Lemon (The Reader), Vivienne Rochester (Claudia Purnell / Regulators), Oliver Senton (Sky-Teller), Dominic Vulliamy (Wyatt). Other parts played by members of the cast.