JEKYLL AND HEIDI (GOOSEBUMPS SERIES 2000)
By R.L. STINE.
Description
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. - from Amzon
ISBN(s)
0439011833, 9780439011839