Read by: Colin Baker, Nicola Bryant, Peter Miles
Language: English
Length: 1 hour and 44 minutes
Publisher: Big Finish Productions
Release date: 2016-01-15
The Doctor and Peri find themselves in the Museum of Aural Antiquities, where every sound is stored for posterity - from the speeches of Visteen Krane to security service wiretaps and interrogation tapes. But they also find an intruder, mysteriously changed recordings, and a dead body.
Before long the Doctor realises that there is more going on than a simple break-in or murder. How can he defeat a creature that is made of pure sound?
Written by Justin Richards. Directed by Gary Russell.