“You’re like a pressure cooker,” Francine said, when the caseworker left, “and the water’s getting hot.” Suki said, “What the snow’s a pressure cooker?” “A thing my mamaw used to have,” Francine said. “For canning vegetables from her garden. It’s a pot you put water in and seal tight shut before you heat it up. The water boils into steam and makes pressure. “Thing is,” Francine said, “pressure cookers have this little valve on top. Rattles around, keeps the pressure from building up too high inside the pot. If the valve isn’t working right, pressure cookers can be dangerous. They can turn into
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