While staying with their aunt for a year, three nine-year-old cousins keep busy baking and selling cookies, putting on a poetry and singing performance, and trying to encourage a romance between their aunt and one of their former customers.

Nine-year-old cousins Lily, Rosie, and Tess are sad when it is time to leave Aunt Lucy, so they plan a party and get a special surprise to look forward to in the near future.