Geoffrey Beevers reads this action-packed novelisation of the Third Doctor tv adventure.

Seven months after it remaining Mars there’s still been no radio communication with the Probe Seven spacecraft, or the astronauts inside it. Back on the planet concern is certainly mounting, and eventually a recovery capsule is certainly delivered up to rescue the astronauts. But when the capsule comes back to Earth it is found to become empty.

As the physician and Liz investigate, they find that the interior of the capsule is highly radioactive: if anyone was inside, they would now definitely be dead. Have got the astronauts returned to Globe? And if not really, who will be the sinister space-suited statistics who stalk the countryside, and whose very touch means quick death?