The moment I met my sister's best friend Madison Baker, we immediately take a dislike to each other. She always thinks she's right, and worse, she usually is. We spend our four years at the academy torturing each other. Years later, she's out of the Marines thanks to a roadside bomb. If you think that means she's fragile, you would be wrong. She's stronger than anyone I know, and we still drive each other crazy, and when one of our arguments...