Invocation (audio story)

 was the second story in the Encounters audio anthology.

Publisher's summary
It’s Hallowe’en, and Josh finds himself at a party where phantoms are becoming all too real. Osgood is working late and hears a voice from the skies making strange incantations. The next day, Kate has gone missing in the Scottish Borders, and the team head north to investigate. Ghosts from the past are haunting UNIT, and now they threaten the whole world…

Plot
to be added

Cast
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Continuity
to be added