When Cornelia joins Napoleon's army as a traveling naturalist with the power to heal, she meets the sister she never knew existed on the opposite side of the battlefield and together, they must use the magic of flowers to solve the mystery of their mother's death, while fighting for their survival. Penniless and stranded in France after a bid to escape her cruel uncle goes awry, Cornelia Shaw is far from the Parisian life of leisure she imagined....