A Great Darkness is spreading over E-Space. Entropy increases. In search of a last exit to anywhere, the TARDIS arrives on the power-less planet of Apollyon, where the scientist Pallister guards the only way out - a mysterious portal.
| ISBN: | 9781781784495 |
| Publication date: | 31st March 2015 |
| Author: | Carrie Sutton |
| Publisher: | Big Finish Productions Ltd |
| Format: | CD-Audio |
| Series: | Doctor Who |
| Genres: |
Science fiction: space opera |