When Margaret and Casey see their father become weedy while working on his botany experiments, they worry that his plant-testing may not be entirely harmless.
- ISBN10 0590453661
- ISBN13 9780590453660
- Publish Date 1 July 1992 (first published 1 January 1992)
- Publish Status Active
- Out of Print 18 October 2010
- Publish Country US
- Imprint Scholastic US
- Format Paperback
- Pages 10
- Language English