When the Doctor and Ruby arrive on Cavia, they meet a gentle local who is certain that she has been taken for study by creatures from the stars. The Doctor is concerned to find mysterious meteors appearing in the sky, while strange robotic creatures crowd the forests, watching everything and waiting for… what?

Freema Agyeman, Reggie Yates, Adjoah Andoh and Will Thorp are the readers of these eight original novels featuring the 10th Doctor and Martha, as played on TV by David Tennant and Freema Agyeman. The titles are 'Sting of the Zygons' by Stephen Cole; 'The Last Dodo' by Jacqueline Rayner; 'Wooden Heart' by Martin Day; 'Forever Autumn' by Mark Morris; 'Wetworld' by Mark Michalowski; 'Sick Building' by Paul Magrs; 'The Pirate Loop' by Simon Guerrier; and 'Peacemaker' by James Swallow.

A visit to the Grand Canyon begins with disaster for the Doctor and Peri, when the TARDIS plunges into a ravine. The travellers' only hope is to descend to the valley on foot and then track the course of the Colorado river. Their perilous journey is fraught with danger, even before they encounter a band of 19th Century explorers led by Major John Wesley Powell. Joining the watery expedition, the Doctor and Peri begin to despair of ever seeing the TARDIS again. As food supplies dwindle, so do the group's options. This is a journey which some of them will never return.

Toby Longworth reads this original adventure for the Thirteenth Doctor and Graham, as played on TV by Jodie Whittaker and Bradley Walsh. It's 1970, and record-breaking explorer Silvia Sandstrom has completed an epic lone drive to the North Pole. But as she activates her on-board experimental equipment, her vehicle is swallowed by a massive hole in the ice. Meanwhile the TARDIS is drawn to an arid wasteland, also apparently at the North Pole. There the Doctor and Graham meet Silvia - but it's clear that she is a woman out of her own time.

An Escape Room with a sting in its tail is the setting for the Doctor and Jo's latest encounter with a familiar enemy. Three young graduates and their tutor race against time to crack the codes, open the exit door, and obtain 'A New Life' - at least, that's what the publicity said. As the Doctor observes proceedings, he forms a growing suspicion that something far more sinister lurks on the other side of the door. What's worse, the room appears set to eliminate anyone who doesn't make the grade.

Nicholas Briggs reads the brand-new novelisation of the spectacular 50th anniversary TV episode. When the entire universe is at stake, three different Doctors will unite to save it. The Tenth Doctor is hunting shape-shifting Zygons in Elizabethan England. The Eleventh is investigating a rift in space-time in the present day. And one other - the man they used to be but never speak of - is fighting the Daleks in the darkest days of the Time War.

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.

Some art can be deadly . . . Young Frida Kahlo is angry. Injured in a terrible accident, she lives with constant pain and worries that her dreams are unreachable. But when the TARDIS lands in Mexico City – drawn by a strange disturbance in its energy fields – Frida’s life is turned upside down. Aliens have arrived, taking over the bodies of children and killing anyone who gets in their way.

An unabridged reading of this original novel featuring the Third Doctor, as played on TV by Jon Pertwee. When a boy goes missing and a policewoman starts drawing cave paintings, the Doctor suspects the Silurians are back. With the Brigadier distracted by questions about UNIT funding and problems at home, the Doctor swears his assistant, Liz Shaw, to secrecy and investigates alone. But Liz has enquiries of her own, teaming up with a journalist to track down people who don't exist.

Jemma Redgrave, Clare Higgins, Nicola Bryant and Dan Starkey are among the readers of this exclusive collection of nine original audio adventures. Join the Twelfth Doctor, as played on TV by Peter Capaldi, as he meets friends and enemies new and old on these journeys in time and space.

It's ten years since Harry Sullivan left UNIT and gave up his travels in the TARDIS with the Doctor and Sarah Jane. Since then he has been engaged in top secret work, developing antidotes to nerve toxins. But when he is transferred to Yarra in the Hebrides to work on weapons research, he has severe misgivings. For one thing, it goes against much of what he believes in. For another, someone is out to kill Harry Sullivan.

An unabridged reading of the 7th Doctor novel by Paul Cornell, which formed the basis for the 10th Doctor television story "Human Nature/The Family of Blood". Hulton College in Norfolk is a school dedicated to producing military officers. With the First World War about to start, the boys of the school will soon be on the front line. But no one expects a war - not even Dr. John Smith, the college’s new house master. The Doctor’s friend, Benny, is enjoying her holiday in the same town.

An unabridged reading of this original novel featuring the Seventh Doctor, as played on TV by Sylvester McCoy, and Ace in an encounter with the Cybermen. The Blitz is at its height. As the Luftwaffe bomb London, Cody McBridge, expat American private eye, sees a sinister silver sphere crash-land. He glimpses something emerging from within.

The military dismiss his account of events - the sphere must be a new German secret weapon that has malfunctioned. What else could it be?

In Marco Polo, by John Lucarotti, the TARDIS breaks down in Central Asia in the year 1289, causing the travellers to meet an intrepid Venetian explorer. In The War Machines, by Ian Stuart Black, the Doctor senses a powerful and sinister force around London's newly built Post Office Tower. In The Faceless Ones, by Terrance Dicks, the Doctor and his friends are drawn into a web of intrigue and deception at Gatwick Airport. In The Ambassadors of Death, by Terrance Dicks, the Doctor and Liz investigate the disappearance of three astronauts after their space capsule returns to Earth empty.

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.

When the Doctor and Ruby arrive on Cavia, they meet a gentle local who is certain that she has been taken for study by creatures from the stars. The Doctor is concerned to find mysterious meteors appearing in the sky, while strange robotic creatures crowd the forests, watching everything and waiting for… what?

Join the Eleventh Doctor on journeys in time and space in the stories 'The Runaway Train' by Oli Smith, 'The Ring of Steel' by Stephen Cole, 'The Jade Pyramid' by Martin Day, 'The Hounds of Artemis' by James Goss, 'The Gemini Contagion' by Jason Arnopp, 'Eye of the Jungle' by Darren Jones, 'Blackout' by Oli Smith, 'The Art of Death' by James Goss, 'Darkstar Academy' by Mark Morris, 'Day of the Cockroach' by Steve Lyons and many more.

Jemma Redgrave, Clare Higgins, Nicola Bryant and Dan Starkey are among the readers of this exclusive collection of nine original audio adventures. Join the Twelfth Doctor, as played on TV by Peter Capaldi, as he meets friends and enemies new and old on these journeys in time and space.

When the Doctor and Donna visit London's Technology Museum for a glimpse into the future, things don't go to plan. The most brilliant IT brain in the country can't use her computer. More worrying, the exhibits are attacking the visitors, while outside, people seem to be losing control of the technology that runs their lives. Is it all down to simple human stupidity, or is something more sinister going on?

Michael Maloney, Neve McIntosh, David Warner, Nicholas Briggs and Alex Kingston read these four original stories featuring the Eleventh Doctor, Amy and Rory.