" The sound of her breathing reminded me, as it so often did, of how vulnerable she was. And how vulnerable we were because of how much we loved her. The fear - that something could happen to her at any moment, something I'd be helpless to stop - had become so omnipresent in my life that I sometimes pictured it growing, like a third arm, out of the center of my chest. "

― Dennis Lehane , Moonlight Mile (Kenzie & Gennaro,#6)