Somewhere far back in the early days of the universe the TARDIS lands on a world lit by a dying sun.
Venturing out onto its surface, the time travellers find themselves drawn into an age-old conflict between the people of Light and Shadow.
- Format: CD-Audio
- Publisher: Big Finish Productions Ltd
- Publication Date: 30/09/2013
- Category: Science fiction
- ISBN: 9781781780954