Bright and inquisitive, Hannah Powers was raised by a father who treated her as if she were his son. While her beautiful and reckless sister, May, pushes the limits of propriety in their small English town, Hannah harbors her own secret: their father has given her an education forbidden to women. But Hannah's secret serves her well when she journeys to colonial Maryland to reunite with May, who has been married off to a distant cousin after her sexual misadventures ruined her marriage prospects in England.

As Hannah searches for May, who has disappeared, she finds herself falling in love with her brother-in-law. Alone in a wild, uncultivated land where the old rules no longer apply, Hannah is freed from the constraints of the society that judged both her and May as dangerous--too smart, too fearless, and too hungry for life. But Hannah is also plagued by doubt, as her quest for answers to May's fate grows ever more disturbing and tangled.