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Zone 10 was the eighth story in the Torchwood audio series by Big Finish Productions. It was written by David Llewellyn and featured Naoko Mori as Toshiko Sato.

Publisher's summary[]

They call it "Pulse" — a radio signal which has puzzled the world for 40 years. But now Toshiko Sato has solved it.

She's uncovered a message which leads her to Russia, and into an uneasy alliance with the KVI — the Russian equivalent of Torchwood. Toshiko needs to get into Zone 10 - a frozen wasteland which officially doesn't exist.

An intergalactic war was once fought in Zone 10. And it turns out there's a survivor.


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  • Maxim hums "Korobeiniki"; Tosh recognises it as the theme to Tetris, which she was obsessed with playing when she was young.
  • Anna Volokova was born in 1930. Toshiko notes that she would be 78 years old despite appearing just short of her own age.
  • The secret war between KVI and the Committee began at dawn on 5 April, 1965 and ended 32 minutes later. Maxim calls it the shortest conflict in human history.


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