This is a rare Bellairs with a female protagonist. Lewis is away at summer camp, and his best friend Rose Rita goes to Michigan with Mrs Zimmerman to dispose of some property Mrs Z's cousin Oley left her. Gertie is an angry, unhappy old woman who still carries a grudge against Mrs Z from a fight over a boy when they were girls. She steals Oley's magic ring to use for revenge and Rose Rita is left on her own to save both herself and her friend. Bellairs deals sensitively with issues of gender discrimination and the emotional difficulties of junior high.