A successful ad rep was walking down the street in Manhattan. A young boy begged her for money for food. He hadn’t eaten in two days. The woman kept walking…until something made her stop, turn around and ask the boy to go to McDonald’s with her. For the next four years, the two met every Monday so the young boy could have a meal. After that, their bond kept growing. In An Invisible Thread, Laura Schroff tells the story of how a homeless panhandler became her son.