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The Dalek Factor was the fifteenth and final Telos Doctor Who novella. This is the second (the first was The Cabinet of Light) to feature an unspecified and unidentifiable Doctor. This is the first long-form Doctor Who novel to feature the Daleks since 1998's PROSE: Legacy of the Daleks. This is author Simon Clark's only contribution to Doctor Who.

Publisher's summary[]

When a Thal platoon arrive on a hostile planet investigating reports that Dalek artefacts have been detected, they are unprepared for what they find. In an underground room is a stranger, a Professor, or so he claims, with no memory of who he is or why he is there. With death and horror their only companions, the Thals make their way with the Professor into the heart of a crumbling Dalek citadel in search of answers... only to find that the Daleks are the least of the horrors they must face.


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  • The Dalek Emperor is referred to as "an Emperor", suggesting that there is more than one.
  • The unnamed planet is located in the Quadrille.


  • Which particular incarnation of the Doctor is not specified in this novella.
  • All three editions of aHistory date this story to circa 3340, as Thal Search and Destroy missions have been underway for eight centuries, and Planet of the Daleks is set in 2540.
  • The Limited Deluxe Edition was autographed by Simon Clark, Christopher Fowler and Graham Humphreys. Only 800 copies of the Limited Deluxe Edition were produced.


  • The Emperor Dalek that appears on the planet matches the description of the Emperor from TV: The Evil of the Daleks.
  • The planet is a quarantine for Dalek experiments considered failures or too much of a threat to the Dalek race. The Daleks during the Time War will unleash unheard of weapons and Dalek mutations. (TVThe Sound of Drums, AUDIO: Only the Monstrous, et al.)
  • The Dalek Emperor is overseeing the implanting of a "Dalek heart" into different lifeforms in order to create a new, more powerful Dalek race so that only Daleks remain. The Emperor would try to reconstitute the Dalek race by transforming human into Daleks in TV: The Parting of the Ways.
  • Part of the Dalek experiment is to create sleeper agents whose outward appearance matches their home planet, but who have the mind of a Dalek. This appears to be an evolutionary middle step between Robomen and the Dalek puppet. Dalek puppet sleeper agents would appear in TV: Asylum of the Daleks and TV: The Time of the Doctor.

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