Because of the power she possesses, a young girl is drawn into the struggle to control a living stone, once coveted as the Holy Grail and now the soul of a universe parallel to Earth's.
- ISBN10 0027883809
- ISBN13 9780027883800
- Publish Date 23 December 1985
- Publish Status Out of Print
- Out of Print 18 March 2021
- Publish Country US
- Imprint Simon & Schuster Children's Publishing
- Format Paperback (US Trade)
- Pages 245
- Language English