I found the baby on a Tuesday night, wrapped in a thin gray blanket, crying softly in the hallway of my apartment building in Pittsburgh.

I was thirty-four, newly divorced, working double shifts as a hospital nurse, and too exhausted to be startled by much anymore—but that sound stopped me in my tracks.

No one answered when I knocked on doors. There was no note, no bag, no explanation. Just a tiny baby, only weeks old, left there as if someone hoped the building itself would decide what happened next.