Reid stared at him. So did Charlie. “When we speak of creatures like the vampire,” Isaac continued, “we speak of metaphors. We give them little Achilles’ heels so we can feel better, but tell me: What vulnerabilities does grief have? How would a hero defeat that monster? He can’t, can he?” His welling eyes latched on Charlie again. “I could’ve saved my boy, you know. A simple vaccination might have done it. Or maybe not. Maybe it’s just our lot to suffer. That’s what our people are ‘chosen’ to do. Our birthright. Our curse.”