Adapted for audio by original author Lance Parkin, this gripping story finds a newly-regenerated Fifth Doctor arrive on an occupied ice planet – where the Seventh Doctor is investigating dangerous energy experiments conducted by the Earth Empire. But events spin out of control when a refugee from the distant past arrives - Patience, the Doctor's Wife (Christine Kavanagh)!

'People have been asking for an adaptation of Cold Fusion for years,' enthused script-editor John Dorney, 'not least me, as it's the only Missing Adventure I don't own! So it was a huge privilege being asked to script-edit books legend Lance Parkin on his own adaptation, and to discover this glorious reverse multi-Doctor classic myself. Two Doctors, five companions - what a blast!'

Appearing alongside the Fifth Doctor will be his television companions Nyssa (Sarah Sutton), Tegan (Janet Fielding) and Adric (Matthew Waterhouse); while the Seventh Doctor is aided by his New Adventures companions Roz Forrester (Yasmin Bannerman) and Chris Cwej (Travis Oliver), who both previously appeared in Big Finish's acclaimed adaptation of Russell T Davies' Damaged Goods. The cast also includes Jeremy Hitchen, Sharon Maughan and Peter Caulfield.

The adaptation has been produced and directed by Jamie Anderson.

'With a named cast of over thirty characters, Cold Fusion was a real challenge to record.' said Jamie. 'Luckily we had a talented and versatile guest cast starring alongside the core cast. We had a fantastic three days at the Moat Studios bringing this class novel to life, and I'm sure that fans will love the chemistry between the Doctors, and their companions.'

Doctor Who: Cold Fusion, a six-part adventure, will be released in December 2016. Pre-orders are open now for £16.99 on CD or £14.99 to download. CD orders include a complimentary digital download, allowing you to enjoy the story as soon as it's released. 

The story is also available as part of a money-saving bundle with five other Novel Adaptation releases, including fellow December release Doctor Who: Original Sin; in which the Seventh Doctor and Bernice Summerfield (Lisa Bowerman) encounter Chris and Roz for the first time!