On her third day alone in the house, 7-year-old Linda Fritts slept in her safe place in the closet. She arranged the shelves and fashioned a nest for herself atop a chest of drawers. “I would take stuffed animals in there and my books in there,” she says now. She read by flashlight, Nancy Drew or The Boxcar Children, the series about four inexplicably happy orphans who live by themselves in an abandoned freight car. “I was jealous,” Linda says.