At birth, Violet and Rose Flowers were identical, save for a tiny bluish-purple mark gracing Violet's slender neck. By nineteen, their temperaments distinguish them, as different as the flowers their mother named them for - Violet, wild and outgoing, and Rose, solitary and reserved. Still, they are each other's world. Then, on a sweltering, terrible August night in 1928, an explosion rocks Lamb's Dance Hall in Possum Flats, Missouri, engulfing it in flames, leaving one twin among the dozens dead, and her sister's life forever changed. Fifty years later, Daisy Flowers is dumped on her grandmother Rose's doorstep for the summer. A bright, inquisitive fifteen-year-old, Daisy bargains her way into an internship at the local newspaper - where she learns of the mysterious long-ago tragedy and its connection to her family.