Edinburgh, 1759. The Nor' Loch is being filled in, officially because it's a stinking cesspool. But why are there so many whispered stories about the loch - stories about the Doctor, and the many hands of Alexander Munro?

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.

A thrilling, all-new adventure featuring the Doctor as played by Matt Smith in the spectacular hit series from BBC TV. When the Doctor arrives in the 19th-century village of Klimtenburg, he discovers the residents suffering from some kind of plague - a 'wasting disease'. The victims face a horrible death - but what's worse, the dead seem to be leaving their graves. The Plague Warriors have returned.

The hugely powerful Key to Time has been split into six segments, all of which have been disguised and hidden throughout time and space. Now the even more powerful White Guardian wants the Doctor to find the pieces. With the first segment successfully retrieved, the Doctor, Romana and K9 trace the second segment of the Key to the planet Calufrax. But when they arrive at exactly the right point in space, they find themselves on exactly the wrong planet - Zanak.

A single blow from the giant, hairy paw smashes the explorer to the ground. Terrified, he flees from the monster's glowing eyes and savage fangs... Why are the peaceful Yeti now spreading death and destruction? And what is the secret behind the glowing cave on the mountain? When Doctor Who discovers that a long-dead friend is still alive, he knows why his visit to the lonely Himalayan monastery has led to a struggle to save the Earth!