Bernice Summerfield, archaeologist, adventurer and all-round trouble-magnet is asked to investigate the remains of an ancient civilisation.
As she digs deeper into the mystery, Benny discovers that Tysir IV is not quite as dead as she'd been told...
Recorded on: 22 July 2004
Recorded at: Moat Studios
Originally released on a free CD given away with Doctor Who Magazine #351, which was published 9 December 2004.
Colin Brake said: "I was pretty excited to be writing for the Cybermen. I'm one of those old fans whose Doctor was Patrick Troughton and the Cybermen were definitely one of my favourite Who baddies. I don't remember any other titles; I've always been fond of a good (or even a bad) pun, and the idea of making it something to do with silver seemed inevitable!"