Established in Cats' Lair, their fortress on Third Earth, the six Thundercats find themselves in grave danger when their headquarters is infiltrated by enemy Mutants.
- ISBN10 0394874528
- ISBN13 9780394874524
- Publish Date 24 October 1985
- Publish Status Out of Print
- Out of Print 18 October 2003
- Publish Country GB
- Publisher Cornerstone
- Imprint Random House Audiobooks
- Format Paperback
- Pages 32
- Language English