From the worlds of Doctor Who - Lady Christina. Containing four stories: It Takes a Thief by John Dorney.The French Riviera has always provided rich pickings for the aristocratic cat-burglar. Lady Christina is enjoying the high life while adding to her collection. But when suspicion falls on her after a robbery-turned-murder, Christina decides to catch the culprit herself. 2. Skin Deep by James Goss. Sylvia Noble always knew she deserved better. So, when a chance encounter with aristocracy propels her out of Chiswick and into high society, she's delighted. But the beautiful people have their own agenda - and Christina is surprised when those plans involve her father. 3. Portrait of a Lady by Tim Dawson. When her plot to steal a priceless painting runs into trouble, Christina crashes into an undercover UNIT operation - and Sam Bishop. Soon, her Number 200 bus is racing from Europe to South America and into the depths of the Pacific, chasing a mysterious and unstoppable foe. 4. Death on the Mile by Donald McLeary. Lady Christina has been offered a job: the heist of a lifetime. She simply has to break into Edinburgh Castle. At the same time, UNIT are investigating alien activity at the Military Tattoo. And where there's treasure and treachery, there are also Slitheen. Big Finish have been producing Doctor Who audios since 1999, starring Tom Baker, Peter Davison, Colin Baker, Sylvester McCoy, Paul McGann, David Tennant and John Hurt. Cat burglar and adventurer Lady Christina - played by former EastEnders star Michelle Ryan - first appeared opposite David Tennant's Doctor in Planet of the Dead, one of his final TV stories. Other guest stars include Jacqueline King as Sylvia Noble (Donna Noble's mum from some of the David Tennant stories) and Warren Brown (Strike Back, Luther, Hollyoaks) reprising his role of Sam Bishop from Big Finish's UNIT -The New Series adventures. CAST: Michelle Ryan (Lady Christina de Souza), Jacqueline King (Sylvia Noble), Warren Brown (Sam Bishop), Matt Barber (Ivo Fraser Cannon), Cristina Barreiro (Flavia Santos), Holly Jackson Walters (Carla / Maud Hunter), William Gaminara (Lord Alfred de Souza), Suzy Bloom (Tamarind / Amber), Rebecca Yeo (Malia), Gareth Corke (Leon Clancy / Policeman / Taxi driver), Emily Carewe (Lucy Clancy / Perfection), Matthew Brenher (Mr Kamen / Conceirge), Christopher Ryan (Grunt / Handley), Jenny Lee (The Keeper), Tracy Wiles (Jacqui McGee), Melissa Collier (Elaine / Janice), Richard Hansell (Robin) Ewan Bailey (Sir Edward Scott Cameron / Biggs).