When a lighthouse keeper reports seeing a ball of light plunging into the sea off Tayborough Sands, UNIT sends Mike Yates to investigate. He is surprised to bump into an old friend, the Doctor, who has brought his friends Tegan and Turlough there for a holiday -- a holiday which is short-lived after the crew of the boat Papillon are discovered slaughtered.
- ISBN10 0563555718
- ISBN13 9780563555711
- Publish Date 1 March 1999 (first published 18 August 1997)
- Publish Status Out of Print
- Out of Print 16 April 2003
- Publish Country GB
- Publisher BBC Consumer Publishing
- Imprint BBC Books
- Format Paperback
- Pages 249
- Language English