The Crystal Bucephalus

"He's one of my own people, Victoria, and he's hunting me." Darkheart: a faded neutron star surrounded by dead planets. But there is life on one of these icy rocks - the last enclave of the Earth Empire, frozen in the image of another time. As the rest of the galaxy enjoys the fruits of the fledgling Federation, these isolated imperials, bound to obey a forgotten ideal, harbour a dark...

'Someone is tampering with the fabric of the human cell,' the Doctor said darkly, 'perverting its secrets to his own dark purposes.' Sarah Jane wants to meet her fellow journalist Rudyard Kipling, and the Doctor sets the co-ordinates for England, Earth, in the Victorian Age. As usual, the TARDIS materializes in not quite the right place, and the time travellers find themselv...

'In less than 25 years the Romans have invented electricity generation, airships, radio and who knows what else. Is that reasonable?' Ancient Egypt, 41 BC. The Doctor and Peri watch as Cleopatra's pleasure barge glides up the Nile in preparation for her fateful meeting with Mark Antony. And an alien presence observes the TARDIS, waits for it to dematerialize, then pounces. When ...

'How do you kill someone?' asked the Doctor. 'Eviscerate them, crush them, reverse their particles. But do the dead always stay dead?' The TARDIS brings the fourth Doctor, Romana and K-9 to the Rock of Judgement: a court, prison and place of execution built into a rocket-powered asteroid. There they become embroiled in an investigation by the system's finest lawman. Wh...

'You want me to help you eat your children?' Ian said. Jellenhut's eye-stalks twitched. 'How else would we remember them?' Venus is dying. When the Doctor, Barbara and Ian arrive they find an ancient and utterly alien civilization on the verge of oblivion. War is brewing between those who are determined to accept death, and those desperate for salvation whatever the cos...