An unabridged reading of this classic novelisation of a 1968 TV adventure featuring the Second Doctor, as played on screen by Patrick Troughton. For 40 years the Yeti had been quiet, a collector's item in a museum. Then, without warning, it awoke and savagely murdered. At about the same time, patches of mist began to appear in Central London. People who lingered in the mist were found dead, their faces smothered in cobwebs. The cobweb seeped down, penetrating the Underground System.

On the serene planet Deva Loka, an expeditionary force from Earth is dangerously out of control. It's not only the peaceful race of the Kinda who are at risk. A gentle stroll in the lush jungle leads the Doctor and Adric to an unexpected confrontation - and puts them at the mercy of a maniac. But it is Tegan, lulled to sleep by mysterious wind-chimes, who comes closest to a danger than threatens not only her sanity but the existence of the whole planet.

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.

Geoffrey Beevers reads this exciting novelisation of a classic TV adventure for the Fourth Doctor. The Doctor is suddenly summoned to Gallifrey, the home of the Time Lords, where his ghastly hallucinations of the president’s assassination seem to turn into reality. When the Doctor is arrested for the murder, a hideous, dark, cowled figure is gleefully watching in the shadows. In a battle of minds, the Doctor faces renegade Time Lord the Master inside a nightmare world created by his old enemy’s imagination.

Materialising to avoid a head-on collision in space, the TARDIS becomes trapped on board an eerily deserted alien spacecraft. The Doctor transmats to Earth to solve the problem - yet when the TARDIS follows on, Tegan and Nyssa find that they have arrived five years too early. While the Doctor enjoys a reunion with Brigadier Lethbridge-Stewart in 1983, in 1977 his companions are confronted by a hideously deformed figure who claims to be the Doctor. Unsure whether or not this is their friend, Tegan and Nyssa must choose whether to answer his desperate pleas for help.