Matthew Waterhouse, who played the Doctor’s companion Adric in the original 1982 TV version of Four to Doomsday, reads Terrance Dicks’ complete and unabridged novelisation of the adventure for this new triple-CD release.

When the TARDIS materialises on an alien space craft, the ships’s commander, Monarch, invites the Doctor and his companions Adric, Nyssa and Tegan to continue their journey to Earth in his company. Monarch’s hospitality even extends to a generous offer to liberate the time-travellers from the shortcomings of their bodies and replicate them as androids.

Although Adric finds Monarch’s proposal extremely attractive, the Doctor is not so sure, and has good reason to be suspicious of Monarch’s motives…

Four to Doomsday is available now from BBC Audio, priced £20. We’ve got FIVE copies of the CD to give away to readers who can correctly answer this question:

Terms and Conditions: The competitions open on Thursday 9 March and close at midnight on Wednesday 5 April 2017. One entry per person. The competitions are not open to employees of Doctor Who Magazine or the printers, or anyone else connected with DWM, the printers or their families. Winners will be the first correct entries drawn after the closing date. No purchase necessary. DWM will not enter into any correspondence. Winners’ names will be available on request. Entrants under 16 years of age must have parental permission to enter.