Living in New York City in the 1920s, Irish immigrant Vivian Kelly spends her days sewing dresses she could never afford and sharing a cramped tenement apartment with her sister. But at night, Vivian sips champagne, flirts, and dances the night away at the Nightingale, a speakeasy where men and women from all walks of life come together to blow off steam. When she stumbles upon a dead body behind the club, Vivian decides to play sleuth, a quest that will lead her to the seediest of dives and swankiest of residences as she risks her life to save her beloved Nightingale. This rollicking period mystery will have readers rooting for its resourceful and spunky flapper heroine.