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The Guardian of the Solar System was first story of the fifth series in the Companion Chronicles audio range. It was produced by Big Finish Productions. It was written by Simon Guerrier and featured Sara Kingdom.

Publisher's summary

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 old enemy: Mavic Chen, Guardian of the Solar System.

Then and now, Sara's past is catching up with her. The cogs have come full circle...


The Old Men in the Clock (1)

to be added

The Guardian of the Solar System (2)

to be added



  • Sara's elder brother Bret Vyon was senior to her in the Space Security Service.
  • Robert was told stories of the Daleks when he was child. However, most people believe that they were nothing more than a myth.
  • Sara considered Steven Taylor to have been a good ally and a good man to have around in a crisis.
  • Sara spent six months on assignment on Venus in 3999.
  • In the 40th century, androids were considered equal to humans.


  • This story explains why Sara is always seen in her SSS uniform during The Daleks' Master Plan, despite travelling well outside her jurisdiction. Sara explains that she thought herself indivisible from her oath of service at that time, and that her uniform represented that oath.
  • This audio drama was recorded on 25 November 2009.
The Guardian of the Solar System clean

Textless cover art


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