The children in Miss Nelson's class go beyond misbehaving; they are downright terrible! Near her wits' end, Miss Nelson thinks up a brilliant plan. The next day the kids have a substitute--the nasty Viola Swamp--who loads the boys and girls with homework and never gives them a story hour. By the time Miss Nelson finally returns, the children are so grateful they behave well. But now Viola Swamp is missing....

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