And will Dr Smith be able to save the day? An adventure set in Britain on the eve of the First World War, featuring the Seventh Doctor as played by Sylvester McCoy and his companion Bernice Summerfield.

Paul Cornell has written some of Doctor Who's best-loved episodes for the BBC, as well as the novel Doctor Who: Nemesis of the Daleks with Dan Abnett. He has also written on a number of comic book series for Marvel and DC, including X-men and Batman and Robin. He has been Hugo Award-nominated for his work in TV, comics and prose, and won the BSFA award for his short fiction.