The mutant son of a space explorer crashes on an unknown planet where he discovers a new species of kindred animals with which he can communicate.
- ISBN10 034531557X
- ISBN13 9780345315571
- Publish Date 12 May 1984 (first published February 1967)
- Publish Status Active
- Imprint Del Rey Books
- Format Paperback (US Mass Market)
- Pages 224
- Language English