Sunny Fischer did not know her. The shy professional woman with a kind disposition was just another customer in her small bookstore. When police find the woman's dead body on the beach at Sunny's lakefront house the next morning, they do not know who she is either. Sunny uses her advanced intellect and keen deductive skills to investigate, and unwittingly enters into a game initiated by her former mentor, the criminal genius Loren Wincott. Now, Sunny must solve a mystery of revenge, corporate corruption, and ancient treasure that threatens to expose her dark past and destroy the lives of those she loves most.