Sixth grader Riley Abercrombie is determined to win--even if she has to gulp down her nerves and speak in public. The Historical Society is having a contest with a cash prize and an all-expense paid trip to where her great-grandma once lived. But a winning essay about her brave relative, a Rosie the Riveter in World War II, may launch Riley on an adventure far bigger than she'd imagined. She soon finds herself in a real-life mystery. A famous...