Charlene is the nurse from the first chapter of Edge of the Heat 6, the one who paced the halls, praying JT would arrive before his mother died. This is her story. You do not need to have read any of of the Edge of the heat books to enjoy this story.
Safety and comfort are important to Charlene, but when she loses both by clinging to what should ensure them for her, she has to find a way out. Charlene's soldier makes her believe there is more out there for her, and she is worth it.