When young Elana unexpectedly joins the team leaving the spaceship to study the planet Andrecia, she becomes an integral part of an adventure involving three very different civilizations, each one centered on the third planet from the star in its own solar system.
- ISBN10 0802787649
- ISBN13 9780802787644
- Publish Date 1 January 2001 (first published 15 August 1974)
- Publish Status Out of Print
- Out of Print 16 June 2021
- Publish Country US
- Imprint Walker Childrens
- Format Hardcover
- Pages 288
- Language English