“How are you doing?” I ask. Her eyes get wet and she screws her mouth shut. I go to hug her, and she shifts away from me. So instead, I take her hand and I squeeze it, and after a moment she squeezes back. We stay like that for a long time. “I lost my arm, Danny,” says Sarah. Her voice shakes. “What am I going to do without my arm?” “Keep saving the world, I imagine.”

