By Harry Allard
Illustrated by James Marshall

Miss Nelson was the nicest teacher in the school. She never yelled and she gave the easiest assignments. Until one day Miss Nelson did not come to school. A substitute teacher came instead. What an opportunity for everyone to be 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?