Molten Heart is a new novel and talking book featuring the Doctor and her friends Yasmin Khan, Ryan Sinclair and Graham O’Brien. It’s written by New York Times bestselling author Una McCormack.

Deep below the surface of the planet Adamantine lies a crystalline wonder-world of lava seas and volcanic islands, home to living rock-people. But when the Doctor and her friends arrive they find Adamantine under threat. The seas are shrinking, the magma is cooling and mysterious, fatal, seething pools are spreading fast.

Something has come to Adamantine – but what does it want? Fearing an invasion is underway, the Doctor must lead an expedition to the surface of the world to save its molten heart…

Molten Heart, read by Dan Starkey, is available now from BBC Audio, priced £22.50. We’ve got FIVE copies of the CD to give away to lucky readers. If you’d like a chance of winning one, correctly answer this question:

TERMS AND CONDITIONS:

The competitions open on Thursday 15 November and close at 23.59 on Wednesday 13 December. 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 request. Entrants under 16 years of age must have parental permission to enter.