A particularly unusual, and particularly deadly, alien being threatens Earth in the latest story in the Doctor Who – The Audio Novels range. But the Third Doctor, Liz Shaw and the Brigadier – the UNIT team as seen in Season Seven of TV Doctor Who – are on call to defend the planet. 

The Mirror Matter is a hard-edged, science-based story written by acclaimed Doctor Who novelist Kate Orman, drawing from her own background as a scientist. It’s read by impressionist and actor Jon Culshaw, who recreates the voices of the original TV cast. 

Like the Season Seven TV serials, this adventure is divided into seven episodes. Each episode is fifty minutes long, and so The Mirror Matter has a total running time of approximately five hours and fifty minutes. 

Doctor Who – The Audio Novels: The Mirror Matter is now available to purchase as a digital download to own for just £19.99, exclusively here. 

The Doctor, Liz and the Brigadier investigate the alien “spores” – blobs of deadly mirror matter from the dawn of time. Liz summons fellow scientists to help the investigation. But one is secretly working for the BNKR, an organization preparing to take over the world. 

The BNKR unleash a killer spore. Meanwhile the Doctor and Liz race to stop another spore, locked in a countdown to destruction. 

Can the Doctor and his friends prevent the entire Earth being converted into mirror matter? 

Script editor Roland Moore said: “We wanted to do a seven-part story set in the Season Seven era, alongside stories like The Silurians, The Ambassadors of Death, and Inferno. And it fits seamlessly in. Kate’s got the era spot on, with characters like Liz Shaw – she’s got her voice totally – and that early iteration of the Third Doctor and the Brigadier. 

“What Kate’s done amazingly well – and it’s a benefit of using real science – is that she’s thought up a monster truly unlike anything the Doctor has encountered before or since. It’s not a man in a suit, it’s a really alien thing that the Doctor finds hard to communicate with.”  

Reader Jon Culshaw added: “This story is full of that ominous mystery and rising menace that those Season Seven Doctor Who stories had. The threats don’t just take place on distant, alien worlds, they happen in the pub, and in a lady’s kitchen, or down a high street – it makes it feel very real, and reminds me of when the Autons came to life in Spearhead from Space.” 

Reviews of the previous Doctor Who audio novel release, The Lord of Misrule: 

“A must listen for fans of Jago & Litefoot, and a cracking Fourth Doctor tale to boot!”
CultBox 

“Culshaw’s voice skills are legend, bringing a suitcase of characters along for any occasion.”
Doctor Who Magazine 

“An excellent story and a worthy tribute.”
Doctor Who Watch 

Big Finish listeners can save money by pre-ordering The Mirror Matter in a multi-buy download bundle of four Doctor Who Audio Novels – including January’s release The Lord of Misrule plus two further releases yet to be announced – for just £70, exclusively here. 

All the above prices (including pre-order and multibuy bundle discounts) are fixed for a limited time only and guaranteed no later than 30 September 2025.