Big Finish Productions’ most recent story arc for the Sixth Doctor (Colin Baker) and Mel (Bonnie Langford) has centred around new companion, Hebe (played by Ruth Madeley), and the mysterious figure of Purity (Imogen Stubbs).  

Purity Unbound sees the Doctor and Mel finally reunited with Hebe after she was erased from history, but the entire course of time is in deadly peril and we’re racing towards a reckoning. 

Doctor Who – The Sixth Doctor Adventures: Purity Unbound is now available to own as a collector’s edition 3-disc CD box set (for just £19.99) or download only (for just £16.99), exclusively here. 

The Doctor, Mel and Hebe are reunited – but Purity's temporal meddling has altered history as they know it. To make matters worse, whatever is left of the being once known as Patricia McBride is still intent on fulfilling her grand design for humanity...

Girl in a Bubble by Jacqueline Rayner

The TARDIS arrives in Hebe’s flat but it’s not how the Doctor and Mel remember it – and neither is Hebe! In Purity's new timeline, Hebe Harrison lives in a grand penthouse with armed guards and a live-in factotum – Ron! – and if she ever leaves her sanctuary... the world will end.

Are these strangers the ones who have been sending her messages? And can this reality be undone without losing Hebe forever?

The Corruptions by Mark Wright

Melanie Bush is a popular part of the Pease Pottage village community, and her best friend Hebe runs the local café where Elise the florist often drops by. Elsewhere, the Doctor is trapped in a nightmarish realm – Pease Pottage Services – unable to cross the boundary of the motorway where shadowy creatures drift amid the traffic.

Purity is watching, and if the Doctor attempts to rescue his friends... they will cease to exist.

The Wrong Side of History by Robert Valentine

Mel, Hebe and Elise find themselves inside a plastic bubble-city in a distant future of humanity where robotic ‘Purifiers’ police the sickly populace. Purity rules this antiseptic nightmare from her high tower, and with the Doctor as her unwilling new helper, she can finally make everything... perfect.

The superb supporting cast also includes Cherylee Houston MBE (as Elise), Kacey Ainsworth (as Beryl) and Toby Hadoke (as Ron), and introduces Connie Farrow as Young Hebe.  

Praise for previous volumes in this Sixth Doctor Adventures series:  

“Colin Baker's emphatic, Doctor-defining monologue about the madness of intolerance stands out starkly in a career already littered with epic speeches. Magnificent!”
Doctor Who Magazine 

“Colin Baker delivers some stalwart Sixth Doctoring, and especially in a couple of moments will make you watery-eyed with poignancy.”
Warped Factor 

“With exceptional writing, performances, direction and sound design, this drama is a must-listen for all fans of Doctor Who.”
The Bad Wilf Podcast 

“A lot of the credit must surely go to producer Jac Rayner and actor Ruth Madeley. Madeley keeps Hebe sprightly and engaging throughout.”
Blogtor Who 

Big Finish listeners can save money by purchasing this box set as part of the 14-release Classic Doctors Bundle for £274 (collector’s edition CD box set + download) or £237 (download only). A 12-release bundle is also available from £198.

Both 2023 releases in The Sixth Doctor Adventures range can be purchased together for just £38 (collector’s edition CD box set + download) or £33 (download only).

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

Please note that Big Finish is currently operating a digital-first release schedule. The mail-out of collector’s edition CDs may be delayed due to factors beyond our control, but all purchases of this release unlock a digital copy that can be immediately downloaded or played on the Big Finish app from the release date.