Growing up in Wales, Catherine Carreg has been allowed to run wild, spending her childhood racing ponies along the beach with her friend Deio, the cattle-driver's son. But Catherine is consumed by a longing to escape the monotony of village life and runs away to London with Deio's help. Alone in the unfamiliar city, Catherine secures a position in Florence Nightingale's home for sick governesses. As the nation is gripped by reports of war in the Crimea, Catherine volunteers as a nurse--and her life changes beyond all recognition. Arriving in Scutari, she is immediately thrown into a living nightmare. Amid the madness and chaos, Catherine is forced to grow up quickly, learning the hardest lessons of love and war.