Edgar Award nominee Peter Abrahams gives young readers thrills and chills with his second installment of the New York Times best-selling Echo Falls Mystery series. Thirteen-year-old Ingrid Levin-Hill can't believe she has to participate in MathFest; math is her least-favorite subject. When she returns home from school, something seems amiss, and her Sherlock Holmes senses kick into full gear. Her dad's job is in jeopardy, her brother seems to be getting more muscular every day and her new soccer coach could freeze the field with her icy personality. Yet as Ingrid digs deeper, she doesn't realize her own life is in danger.