While on a mission for the Thothian priests, the Free Traders' ship is forced down on a barren and seemingly uninhabited planet.
- ISBN10 0441223680
- ISBN13 9780441223688
- Publish Date 1 April 1984 (first published 26 April 1971)
- Publish Status Out of Stock
- Out of Print 4 December 2011
- Publish Country US
- Publisher Penguin Putnam Inc
- Imprint Ace Books
- Format Paperback
- Language English