Jon Culshaw and John Leeson read Terrance Dicks’ novelisation of the 1980 story Meglos, an adventure featuring the Fourth Doctor, K-9 and Romana.

On the planet Tigella, the Savants and the Deons are irrevocably opposed on one crucial issue: the Dodecahedron, mysterious source of all their power. To the Savants, it’s a miracle of science to be studied and used to benefit all. To the Deons, it’s a god, and not to be tampered with.

When the power source begins to fluctuate, the whole planet is threatened. Zastor, Tigella’s leader, welcomes the Doctor and invites him to arbitrate. Yet the Time Lord may not be all he seems…

Meglos is available now from BBC Audio, RRP £20 (CD) and £9 (digital). We have FIVE CD copies to give away. If you’d like the chance to win one, answer the following question correctly:

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The competitions open on Thursday 22 July 2021 and close at 23.59 on Wednesday 18 August 2021. One entry per person. The competitions are not open to employees of DOCTOR WHO MAGAZINE 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 this website. Entrants under 16 years of age must have parental permission to enter. To read the BBC’s code of conduct for competitions and voting visit https://www.bbc.com/editorialguidelines/guidance/code-of-conduct. Prizes will be sent to winners as soon as possible. However, due to the Coronavirus lockdown restrictions there may be a delay in dispatching some items.