Driven by the patriotic fervor of 1916, twin sisters Floss and Doss commit themselves to the war effort, setting in motion a series of events that pull them into the heart of the conflict. With their father and brother already serving on the front lines, the sisters seek employment in a munitions factory before their paths diverge. Floss eventually secures a position at a hospital, leading to an overseas assignment in France where she is captured by German forces. The narrative tracks their experiences through a third-person perspective, contrasting the domestic reality of wartime England with the harrowing conditions of a field hospital and life behind enemy lines.

Readers frequently highlight the author's ability to balance the domestic struggles of the home front with the visceral realities of the battlefield. Discussion often centers on the character development of the twins as they transition from sheltered lives to the harsh demands of wartime service. Critics note the effectiveness of the historical atmosphere, which provides a clear sense of the social shifts occurring in Britain during the Great War. The narrative is often praised for its focus on the often-overlooked contributions of women during this period. Readers appreciate how the story maintains a consistent pace while addressing the traumatic consequences of the conflict on the individual characters.