Emmeline Escot knows that she was born to ride in Seren's cutthroat velocipede races. The only problem: She's female in a world where women lead tightly laced lives. Emmeline watches her twin brother gain success as a professional racing jockey while her own life grows increasingly narrow. Ever more stifled by rules, corsets, and her upcoming marriage of convenience to a brusque stranger, Emmy rebels—with stunning consequences. Can her dream to race survive scandal, scrutiny, and heartbreak?