Heidi lives with her eccentric uncle Dr. Jekyll. The locals call him a mad scientist. Heidi thinks they're crazy -- until she catches her uncle drinking a strange concoction and terrifying animal sounds rip through the night.
- ISBN10 0590685171
- ISBN13 9780590685177
- Publish Date 1 February 1999
- Publish Status Out of Print
- Out of Print 13 March 2021
- Publish Country US
- Imprint Scholastic US
- Format Paperback
- Pages 117
- Language English