Dr. Samantha Owens is starting over: new city, new job, new man, new life. She's trying to put some distance between herself and the devastating loss of her husband and children--but old hurts leave scars. Before she's even unpacked her office at Georgetown University's forensic pathology department, she's called to consult on a case that's rocked the capital and the country. An unknown pathogen released into the Washington Metro has caused nationwide...