High atop Mount McKerry sits the observatory. For years now it's been watching the skies. Now something's watching back. Something dark and huge that blots out the stars. Something with giant wings. Something that kills.
| ISBN: | 9781781780701 |
| Publication date: | 31st December 2013 |
| Author: | John Dorney, Peter Davison |
| Publisher: | Big Finish Productions Ltd |
| Format: | CD-Audio |
| Series: | Doctor Who |
| Genres: |
Science Fiction |