Mara once believed that putting down her gun would put enough distance between herself and the past. She stopped training, softened her edges, and surrendered herself to time, medicine, and the promise of a peaceful marriage. Ten years later, it is not an old enemy who makes her open the gun case again, but the people closest to her crossing one line after another. When the revolver returns to her hand, Mara realizes some powers never disappear. They are only forgotten.