The second book in the Subterrene War series can also stand alone as the author sets the futuristic tone and context smoothly throughout. McCarthy does an excellent job of building and presenting Catherine. She is realistic and believable, offering a great platform for exploring our humanity and nature. The gritty realities of the futuristic conflict Catherine participates in, leads and navigates may shock readers unfamiliar with the front-line military genre. Getting to know Catherine is worth your time.