Doctor Who Main Range AudioDrama

Deep in the mines of Epsilon Minima, Professor Bernice Summerfield is up to her neck in it - as usual. The Countess Venhella has hired her to recover a lost Time Lord artefact: A TARDIS key, it turns out. Guess whose?

On the planet Entusso, the Doctor and Fitz Kreiner investigate Alien Defence Incorporated - your one-stop shop for protection against extraterrestrial invasion! But which is the greatest menace: the hideous Vermin Queens or ADI itself?

TARDIS travel opens one's eyes to a universe of possibilities, reckons the Doctor. For geek girl Izzy, it's also a fantastic way to track down ultra-rare back copies of 'Aggrotron!', the most dangerous comic in history...

Switzerland, 1816: at the Villa Diodati, Lord Byron's house guests tell each other tales to curdle the blood and quicken the beatings of the heart. With a monster on the loose outside, young Mary Shelley isn't short of inspiration.

Elizabeth Klein is an anomaly. A renegade from an alternate future in which the Nazis won World War II. In an attempt to get to know his latest companion, the Doctor invites Klein to tell him how exactly she came to be in possession of his TARDIS and of the events that led to her trip into the past to Colditz Castle.