"Snap is a gripping novel about a teenage boy's hunt for his mother's killer. Jack's in charge, said his mother as she disappeared up the roadto get help. I won't be long. Now eleven-year-old Jack and his two sisters wait on the hard shoulder in their stifling, broken-down car, bickering and whining and playing I-Spy until she comes back. But their mother doesn't come back. She never comes back. And after that long, hot summer's day, nothing will...