Pretty Close to the Truth

Mysterious bags picked up at school, suspicious new characters in town, one dead millionaire, and lots of gum. What do they all have in common? Not one thing until Icabum Plum and the Gum Chews begin to connect the dots. It's an open-and-shut case for a quick-talking master detective like Icabum Plum--if something far more serious wasn't clouding his judgment.