A 12-year-old math whiz accidentally learns the startling facts about her true identity and her role in an important secret experiment.
- ISBN10 0590410024
- ISBN13 9780590410021
- Publish Date 1 February 1987 (first published 31 December 1981)
- Publish Status Out of Stock
- Publish Country US
- Imprint Scholastic
- Format Paperback (US Mass Market)
- Language English