It starts off innocently enough, with principal Walter Russ asking artist Florence Waters to sell him a drinking fountain for the Dry Creek Middle School. But art and bureaucracy are about as different as, well, flood and drought, and this book pits such opposites with hilarious results. Town villains Dee Eel (president of Dry Creek Water Company) and Sally Mander (chief executive of the Dry Creek Swimming Pool) absconded with the town's water supply, turning what used to be Spring Creek into Dry Creek. This all gets uncovered by ``Sam N.'s fifth-grade class,'' who is doing a project on the history of the town. What makes this tale an unequivocal delight is that it's told through letter, memos, newspaper clippings, school announcements, and inventive black-and-white drawings; even less-skilled readers will be drawn in by the element of perusing ``other people's mail'' to find out why Spring Creek went dry, and to decode the water-related names of the characters. Florence and her intriguing attitude and art win over the class, Sam, and even the stuffy principal—how she does it is part of a tale overflowing with imagination and fun. (Fiction. 9-13)