Dan walked out of the clinic on the university campus. After months of work, he could move almost normally with his prosthetic leg. Still a long way from passing his physical to get back on the front line, but he no longer felt knives stab into the stump at every step.

Each time he left here, he reminded himself he had Cindy to thank for this relatively pain free existence.

His cell phone buzzed an hour before his next appointment. Another survivor of the roofing craze that ...