The mercury is climbing in Lumberville, and the folks are doing everything they can to keep cool. Officer McGinnis spends the day in a cold bath, Lottie Mims does her housework in her bathing suit, and Abigail and Ralphie Blue sell ice cubes. When the temperature refuses to relent, the entire community seeks solace by the river--where everyone dreams of cool relief.      A cast of quirky characters and lots of playful details from two celebrated picture-book talents make this heat wave look like fun!