When Mabel and Violet are chosen to be flower girls for Aunt Dolores' wedding, Mabel instead decides to plan the entire celebration and asks Violet to use her magic to help.
Abby Hayes continues her fifth grade year. She has to wear hand-me-downs from her supersibs, isn't allowed to get a pet, and is stuck writing an advice column for the fifth grade newspaper. But how can she give advice when her own life is out of control?.
Mabel plans to make third grade perfect, but can't seem to stop worrying that her younger sister Violet, who is starting kindergarten and has magical abilities, will ruin her year.
Abby's vacation in Paris is almost ruined by her squabbling siblings, Eva and Isabel, until they get separated and Abby is free to explore the city on her own.