She soon figures out that Donny's father, Mr. Hagen, was the one making those calls after finding a stash of newspaper clippings in his closet.

Apparently, Donny had a sister when he was younger, but she died in an accident when a previous babysitter wasn't paying attention to her.

Mr. Hagen then offers Jenny a ride home, but she soon finds out that he is actually taking her out to a rock quarry that has been deserted for years.

[2] In their positive review of the novel, Publishers Weekly felt that Stine effectively built suspense and created an intriguing cast of characters.

[3] Jenny Jeffers is going through a period of distress and fear, as she has narrowly survived a murder attempt by Mr. Hagen, the crazed father of a babysitting charge, who tried to push her into an abandoned rock quarry.

When Jenny arrives at the residence, Michael and Rena Wexner issue a strange warning about their ten-year-old son, Eli.

Eli, who is near death, is lying on the carpet motionless, staring up blankly, with a puddle of blood under his head.

Dr. Schlindler explains that the tapes from Jenny's interview sessions were disappearing, and when he noticed Miss Gurney was gone, he called the police.

After being released from a mental institution, Jenny Jeffers moves to another town and reluctantly accepts a new baby-sitting job next door in an attempt to finally put her dark past behind her by overcoming her fear.

When unexplainable events start to happen, she begins to fear her dark past has come back to haunt her.

However, it is revealed the entity terrorizing her is one of the twin boys she was sitting and his previous babysitter from ten years prior.

Both died mysterious deaths caused by each other and Jenny witnesses their final battle of rage as they disappear into the afterlife.