Quicksilver (audio story)

 was the two hundred and twentieth story in Big Finish's monthly range. The story saw Flip Jackson join the Sixth Doctor and Constance Clarke in their travels after an almost three year absence from the main range.

Publisher's summary
It's the telegram Constance never wanted to read:

Those classified operations concerned a top-secret military project code-named 'Quicksilver'. A project based in Vienna. A project with alien connections.

But bombed-out Vienna is not what it was before the war – with its Strauss music, its glamour and easy charm. It's not the time nor the place for a happy reunion. As Constance Clarke is about to discover...

And as the Doctor is about to discover, too!

Part one
to be added

Part two
to be added

Part three
to be added

Part four
to be added

Cast

 * The Doctor - Colin Baker
 * Constance Clarke - Miranda Raison
 * Flip Jackson - Lisa Greenwood
 * Henry Clarke - Matthew Cottle
 * Kinvar/Rogers - Joel Fry
 * Major Callahan/Vilal Captain/Crook - Oliver Cotton
 * Ana/The Zerith - Kate Kennedy
 * Boyarov/Vilal General/ARP Warden - Robbie Stevens

Continuity

 * Constance remembers meeting the Doctor at Bletchley Park. The Doctor also dresses in his "Bletchley tweed." (AUDIO: Criss-Cross)
 * The Doctor thanks Constance again for organising the TARDIS inbox. (AUDIO: Planet of the Rani)
 * The Doctor claims to be Lord President of Gallifrey, (TV: The Five Doctors, The Mysterious Planet) and invokes the ten millions years of the Time Lords' absolute power. (TV: The Ultimate Foe)
 * Kinvar is another example of a living being used as a battle computer. (TV: Remembrance of the Daleks)
 * The Vilal track Flip using a sample of her biodata. (TV: The Deadly Assassin)