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.

The most amazing Who adventure yet, in which Doctors One, Two and Three cross Time and Space and come together to fight a ruthlessly dangerous enemy - Omega. Once a Time Lord, now exiled to a black hole in space, Omega is seeking a bitter and deadly revenge against the whole universe....

Jon Culshaw reads this exciting novelisation of a 1975 TV adventure featuring the Fourth Doctor. At a time in the far-off future, Earth has become uninhabitable. A selection of humanity is placed, deep-frozen, in a fully automated space station to await the day of their return to Earth. Thousands of years later, the Doctor arrives with his companions, Sarah and Harry, and finds things going suspiciously wrong.

The Doctor and Sarah arrive back in the TARDIS to find London completely deserted: except for the dinosaurs. Has the return of these prehistoric creatures been deliberately planned and, if so, who can be behind it all?

An unabridged reading of this classic novelisation featuring the First Doctor's original encounter with the Cybermen. The TARDIS brings the Doctor, Ben and Polly to a space tracking station in the Antarctic - and into trouble. A space mission is going badly wrong, and a new planet has appeared. Mondas, fabled twin planet of Earth, has returned. But while its inhabitants used to be like the humans of Earth, now they are very different. Devoid of emotions, their bodies replaced with plastic and steel, the Cybermen are here.