"Chicago, 1898. Rough-around-the-edges Harriet Morrow has long been drawn to the idea of whizzing around the city on her bicycle as a professional detective, solving crimes for a living without having to take a husband. Just twenty-one with a younger brother to support, she seizes the chance when the prestigious Prescott Agency hires her as its first woman operative. The move sparks controversy--with skeptical male colleagues, a high-strung office secretary, and her boss, Mr. Theodore Prescott, all waiting for her to unravel under the pressure. Only an hour into the job, Harriet has an assignment: discover the whereabouts of a missing maid from one of the most extravagant mansions on Prairie Avenue. Owner Pearl Bartlett has a reputation for sending operatives on wild goose chases around her grand estate, but Harriet believes the stunningly beautiful Agnes Wozniak has indeed vanished under mysterious circumstances--possibly a victim of kidnapping, possibly a victim of something worse"--