Invaders Invisible (short story)

Invaders Invisible was a short story published in Doctor Who Annual 1971. It featured the Third Doctor, Liz Shaw and the Brigadier.
== Summary ==
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== Characters ==
* Third Doctor
* Liz Shaw
* The Brigadier
* Captain Harvey
* a sentient virus
== Worldbuilding ==
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== Notes ==
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== Continuity ==
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Category:Stories set in England
Category:1971 DWAN short stories