The TARDIS materialises in Mexico during the Aztec civilisation. The Doctor and his companions step outside to discover they are inside a tomb - the tomb, it turns out, of Yetaxa, once High Priest of the Aztecs. Barbara is hailed as Yetaxa's reincarnation by Autloc, High Priest of Knowledge, and Tlotoxl, High Priest of Sacrifice, when they find her in the precincts of the tomb wearing the bracelet of the deceased Priest, now revered as a god.

The TARDIS materialises on board a dark and silent spaceship. As the Doctor, Susan, Ian and Barbara penetrate the craft's eerie gloom they come across what appears to be the bodies of two dead astronauts. But the astronauts are far from dead, and are living in mortal fear of the Sensorites, a race of telepathic creatures from the Sense-Sphere. When the lock of the TARDIS is stolen the Doctor is forced into an uneasy alliance with the aliens. William Russell, reads Nigel Robinson's unabridged novelisation.

The TARDIS materialises at the Roof of the World, Central Asia, in 1289. There they meet Marco Polo and his fellow travellers on their mammoth journey across the Pamir Plateau and through the Gobi desert to Peking. Unfortunately for the Doctor, his Ship proves to be of immense interest to Polo, who sets his mind on presenting it to the mighty Kublai Khan on arrival at his court.

Peter Purves reads John Lucarotti's novelisation of his classic First Doctor TV adventure. The TARDIS lands in Paris on 19 August 1572. Driven by scientific curiosity, the Doctor goes to meet and exchange views with the apothecary, Charles Preslin. Before he disappears he warns Steven to stay 'out of mischief, religion and politics'. But in 16th-century Paris, it is impossible to remain a mere observer, and Steven soon finds himself involved with a group of Huguenots.

An unabridged reading of this novelisation of a classic 1960s TV adventure for the First Doctor, as played by William Hartnell. Following a skirmish in deep space, two alien spacecraft have crash landed on a barren planet in Galaxy Four. The Drahvins are a race of beautiful females, led by the imperious Maaga. The Rills are hideous tusked monstrosities, accompanied by their robotic servants, the Chumblies. When the Doctor arrives with Vicki and Steven in tow, he discovers that the planet will explode in two days' time.