Doctor Who

Name: Doctor Who
Price: 65 AUD
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ISBN: 9781911743101

The Kaleidoscope: Circuit Breaker

Jo Martin

$65

Hardback

Forthcoming
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English

BBC Books
03 October 2026

Science fiction

Delving into the story of one of the most elusive regenerations of the Doctor

When memories lie, the truth can be fatal.

In the aftermath of an improbable mission, the Fugitive Doctor and Martha realise that something is interfering with their minds. Something that doesn't want to be found.

Their investigation leads to a curious artefact in the British Museum- an apparently medieval toy known as the Kaleidoscope. But the object refuses to stay in one place, one time - or one identity. And when the Doctor is repeatedly mistaken for someone she's never met, fragments of unfamiliar memories begin to surface.

Across the Earth, a hidden pattern emerges; evidence of a secret that someone has gone to extraordinary lengths to conceal. As ancient enemies close in and innocent lives are put at risk, the Doctor learns the hard way that some truths were buried for a reason...

A key instalment of the Doctor Who transmedia event Circuit Breaker, this novel is written by the Fugitive Doctor herself, Jo Martin - and also features Martha Jones (as played by Freema Agyeman) together with the Unified Intelligence Taskforce, or UNIT.

By: Jo Martin
Imprint: BBC Books
Country of Publication: United Kingdom
Dimensions: Height: 240mm, Width: 156mm, Spine: 28mm
Weight: 500g
ISBN: 9781911743101
ISBN 10: 1911743104
Pages: 240
Publication Date: 03 October 2026
Audience: General/trade , ELT Advanced
Format: Hardback
Publisher's Status: Forthcoming

Jo Martin is a British actress. On television, she is known for her roles in the BBC series The Crouches (2003-2005) as Natalie Crouch, Back to Life (2019-2021) as Janice, Holby City (2019-2022) as Max McGerry, and Doctor Who (2020-2022, 2025) as the Fugitive Doctor, Dreaming Whilst Black (2023) as Grace and The Marlow Murder Club (2024-present) as Suzy Harris.