Just the Tates!: The One Hundredth Thing about Caroline (Hardcover)

When their mother starts to date the mystery man on the fifth floor, who has been instructed by his agent to eliminate the children by the first of May, eleven-year-old Caroline and her older brother figure they're targeted to be the victims of a savage crime. When 11-year-old Caroline finds some letters belonging to their mysterious neighbor, she and her genius brother, J.P., figure they're targeted to be the victims of a savage crime. Joining forces with their friend Stacy, the team gathers evidence to expose the devious plot. "A story that is warm, appealing, and cleverly devised."-- "Booklist."

When their mother starts to date the mystery man on the fifth floor, who has been instructed by his agent to "eliminate the children" by the first of May, eleven-year-old Caroline and her older brother figure they're targeted to be the victims of a savage crime.