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 0836819748
- ISBN13 9780836819748
- Publish Date 1 July 2001 (first published 1 January 1992)
- Publish Status Active
- Publish Country US
- Imprint Gareth Stevens Publishing
- Edition Large type / large print edition
- Format Hardcover (Library Binding)
- Language English