Big Finish’s much-acclaimed first series of audio novels – enhanced, feature-length audiobooks featuring specially composed music and sound effects – is completed today with the release of The Chaos Cascade, by Colin Brake.  

The Twelfth Doctor embarks on a desperate search for the three scattered parts of the Triskelia – the only means to contain a dangerous multi-dimensional breach in reality: the Chaos Cascade. But two warring races, the aggressive Myzen and the peace-loving Tollatee are also searching for this powerful device, as is a mysterious tech-enhanced part-human mercenary. 

Meanwhile the Doctor’s former housemate Tania Bell travels to Yorkshire to investigate reports of alien activity and is delighted to run into a previously unknown incarnation of the Time Lord: one that is female, dresses in purple and carries a parasol! 

Can the Doctor, Missy and Tania work find a way to work together as a team? Or, once unleashed, will the Chaos Cascade wreak havoc across all space and time? 

Doctor Who – The Audio Novels: The Chaos Cascade, over six hours of audio adventure, is now available to own as a digital download for just £17.99, exclusively here.  

Writer Colin Brake said: “Doctor Who was a major part of me wanting to be a writer and it was certainly why I wanted to be a BBC script editor. I can’t believe how lucky I’ve been to have had the opportunity to write Doctor Who novels, short stories, comics and audios professionally. 

“It’s always exciting to get the offer to write some Doctor Who. With The Chaos Cascade, knowing this was a big long novel but one that would be performed by three amazing actors, was a complete joy. And putting words into the mouths of the Twelfth Doctor, Missy, Tania and Liv was perhaps the most joyful aspect of the whole thing. I can’t wait to hear it!” 

All six titles in the first Doctor Who – The Audio Novels collection are available to purchase together as a bundle for just £99, including: 

• The Scourge of the Cybermen by Simon Guerrier 

• Watchers by Matthew Waterhouse 

• Emancipation of the Daleks by Jonathan Morris 

• The Dead Star by Kate Orman 

• Prisoners of London by Matthew Waterhouse 

• The Chaos Cascade by Colin Brake 

An additional anniversary audio novel, The Box of Terrors by Lizzie Hopley, is also available to buy separately for just £17.99.  

Praise for Doctor Who – The Audio Novels range:  

“Prisoners of London stands as its author’s finest hour and an absolute must-listen.”
Doctor Who Magazine  

“The Box of Terrors is an absolute treat – it has the feel of an anniversary special, albeit one granted an impossible feature-film budget.”
Cultbox 

“The Dead Star is a dense, enthusiastic explosion of 60s Who brought to life by Troughton with charm and consistency.”
Sonic Review Who 

“Emancipation of the Daleks is a palpable hit for Big Finish's Audio Novels.”
Warped Factor 

The above prices include the special pre-order discount and are subject to change after general release.