The letter began with six words that stopped my breath: “You saved my life that night.” Rachel wrote that she hadn’t really come in for diapers. She had been standing in my store with a plan she couldn’t say aloud, driving through the dark with her son and nowhere to go. My hands shook, and my manager quietly stepped out and closed the door.

On the second page, a small photograph slid onto my desk. It showed a man in a gray jacket leaning against a pickup truck, and my blood went cold. My manager had mentioned a man in that same jacket who came in that morning asking which clerk worked Friday nights. Taped to the back, in Rachel’s handwriting, were the words: “That is my husband. Please read the last page before you go home tonight.”