Simon Guerrier

Doctor Who stories are many things: thrilling adventures, historical dramas, tales of love and war and jelly babies. They're also science fiction - but how much of the science is actually real, and how much is really fiction? The Scientific Secrets of Doctor Who is a mind-bending blend of story and science that will help you see Doctor Who in a whole new light, weaving together a series of all-n...

The port of Alexandria, 5th Century BC. The Doctor, Ian, Susan and Barbara have taken a break from their travels, and are enjoying a few weeks in the sunshine - and the chance to appreciate the magnificent Library of Alexandria. Ian also takes the chance to enjoy friendship with the philosopher Hypatia - but things here will not last forever. The time travellers know that the library will...

There's a secret locked up in UNIT's Vault 75-73/Whitehall. Dr Elizabeth Shaw is the only one left who knows what that secret is. Returning to UNIT for the first time in decades, she slowly unravels the past. The vault contains the remains of a spaceship that crashed in the Pennines in the seventies. For the young Liz Shaw, the priority is to ensure the thing's safe. But the D...

Space Security Agent Sara Kingdom is dead, her ashes strewn on the planet Kembel. But, in an old house in Ely, Sara Kingdom lives on… Now joined in the house by her confidante Robert, Sara recalls her travels in the TARDIS with the Doctor – and a particular adventure when the ship appeared to land inside a giant clock, where old men are caught in its workings… And behind this nightmare is an...

Zoe Heriot remembers everything. But she remembers nothing. A genius with instant recall, Zoe’s mind has been purged of her memories of travelling with the Doctor and Jamie in the TARDIS. And years later she is in deep trouble – prosecuted by the mysterious company that has evidence that she has travelled in Space and Time. Except Zoe knows they’re wrong. Aren’t they? But if that’s the...

When the TARDIS materializes in a familiar junkyard in the 1960s, the Doctor and Steven are soon embroiled in a mystery in the City of London. Who are the mysterious bowler-hatted businessmen with their deadly umbrellas? And what secret is young Oliver Harper desperately trying to conceal? Contracts have been signed. A deal is in place. And the Doctor discovers that perhaps not even he can stop...

In the future, Zoe Heriot is a prisoner of the mysterious Company, which has evidence that she travelled through space and time with the Doctor. Zoe’s memories have been blocked by the Time Lords, but the Company is determined to break through this conditioning... And so Zoe recalls a journey to Earth in the past, to the funeral of a young woman called Meg, who was involved in scientific experi...

An experimental timeship smashes into the TARDIS, and the crews of both ships wake up on a desert island. Has the TARDIS been destroyed? And why doesn’t the Doctor want to escape? Then, Steven and Sara find themselves on the wrong side of the Berlin Wall in 1966. And their only way back to the TARDIS is to betray the Doctor.

In the remnant of a shattered satellite, far above the ruined planet Earth, Steven Taylor and Oliver Harper are dying. As time runs out, they face their pasts... and a secret long kept is revealed. The borrowed time is elapsing, and they realize they are facing an enemy that cannot be defeated. The cold, hard facts of science.

Caught in the inevitable path of its own history, the TARDIS arrives on the planetoid Grace Alone, where the Doctor, Steven and Oliver expect to face their fate. What they don’t expect to find is a massacred crew – and a race of alien invaders known as the Vardans. When the Doctor is apparently killed, his companions attempt to survive against the odds. But those odds are narrowing. Their borro...