Tish

Set against a backdrop of mystery, the story follows a middle-aged spinster who, encouraged by her niece and nephew, rents a country house previously owned by a bank defaulter. As they settle in, they become embroiled in a series of crimes linked to hidden stolen securities. This novel is pivotal in establishing the "Had-I-But-Known" style of mystery writing, where the protagonist's questionable decisions extend the plot. Rinehart's influence on the genre is notable, with her contributions shaping classic mystery tropes still referenced today.