Miss Nelson was the nicest teacher in the school. She never yelled and she gave the easiest assignments. She was always smiling and cheery, even when her students behaved badly in class, or would not open their arithmetic books nor pay attention during story hour. Until one day Miss Nelson did not come to school. What an opportunity for everyone to be even more naughty. Not so! Miss Swamp immediately laid down the law - no talking, no goofing off in class - and she gave every student loads of homework. Where was Miss Nelson? Where was the wonderful, unappreciated Miss Nelson? And so the students hunted for her high and low, with the dubious help of Detective McSmogg. Hardcover edition.