Cold Fusion (novel)

Cold Fusion is an original novel written by Lance Parkin and based on the long-running British science fiction television series Doctor Who. It features the Fifth Doctor, with Adric, Nyssa, and Tegan, immediately after Castrovalva. Also appearing is the Seventh Doctor, with Chris and Roz, from between the Virgin New Adventures novels Return of the Living Dad and The Death of Art. It was the only one of the Virgin Doctor Who novels to feature more than one Doctor.

Reception
Readers of Doctor Who Magazine gave the novel a rating of 76.69% (from 845 votes).

Empire magazine recommended the book if someone were to only read one Missing Adventure, describing it as "mind-bending sci-fi with the Fifth Doctor (and a cameo for the Seventh) and an inside-out TARDIS."

Audio adaptation
Big Finish Productions released an audio drama adaptation of the novel in December 2016. The release was announced in July 2016. It starred Peter Davison, Sylvester McCoy, Janet Fielding, Sarah Sutton and Matthew Waterhouse reprising their television roles as the Fifth and Seventh Doctors, Tegan Jovanka, Nyssa and Adric respectively. In addition, Yasmin Bannerman and Travis Oliver reprised their roles as the Seventh Doctor's companions Roz Forrester and Chris Cwej from Big Finish's adaptations of the New Adventures novels Damaged Goods and Original Sin. Christine Kavanagh plays the role of Patience.

Starburst gave the audio a mixed review, describing it as "an odd fish".