Voya-code is the most sophisticated form of interplanetary travel but a young boy finds out it is not without dangers.
- ISBN10 0606031146
- ISBN13 9780606031141
- Publish Date 23 May 1986 (first published 1 January 1978)
- Publish Status Out of Print
- Out of Print 1 September 2015
- Publish Country US
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Pages 94
- Language English