The Baby-Sitter IV is a novella written by R. L. Stine. It was first published in 1995.
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Don't live in the past, they say. And Jenny's trying to forget all of the horrible baby-sitting experiences that landed her in the hospital last year. Now Jenny lives in a new neighborhood, and the neighbor has asked her to baby-sit. If only she could say no. Because someone is watching Jenny--someone who hates baby-sitters.