Ashfall. The Wasteland

A strong woman and a former Air Force pararescueman tangle with a new world forged by an apocalypse no one could stop. Mally Andretti survived an apocalypse that has altered the world. Tucked away in a huge compound she should feel safe, but loneliness eats away at her. Until a deep, mysterious voice tantalizes her over the ham radio and invites her into soul deep conversation. Who is the man who claims to be her friend, who awakens mental and physical cravings? Working for a private security company takes all of former Air Force pararescueman Adam Becker's time, until a sexy voice on the ham radio tempts him to do and say things he's never done before.
Mally calls on every fiercely protective instinctive inside him, and when she's in serious danger he'll do anything to get to her in time.