The Baby-sitter

R. L. Stine's 'The Baby-sitter' introduces Jenny Jeffers, a sixteen-year-old who takes a seemingly ordinary babysitting job that quickly spirals into a terrifying ordeal. She endures crank phone calls, discovers prowlers, and finds threatening notes, leading her to suspect she's the target of a dangerous individual. The suspense builds as Jenny uncovers a dark secret related to the family's past, culminating in a shocking confrontation. This book is a classic example of Stine's ability to craft accessible, page-turning horror for middle grade readers, exploring themes of fear, resilience, and the psychological impact of trauma. It's the first in a series that delves deeper into Jenny's ongoing struggles.

Jenny is harassed by an unknown person after she starts baby-sitting for the Hagens.