On 12 CD's. Published for the first time on CD, the entire third series of Charles Chilton's classic radio sci-fi epic, comprising ten half hour episodes, plus the 90 minute 1981 sequel The Return from Mars and the 30 minute feature Another Journey Into Space.
- ISBN10 1408469944
- ISBN13 9781408469941
- Publish Date 4 August 2011
- Publish Status Out of Print
- Out of Print 15 April 2016
- Publish Country GB
- Publisher BBC Audio, A Division Of Random House
- Imprint BBC Physical Audio
- Format Audiobook
- Duration 11 hours and 50 minutes
- Language English