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.

At first Henry's very neat cousin doesn't like the cookies from under his bed or Mudge's slobbery kisses, but when they all play frisbee, she begins to enjoy her visit

Annie and her cousin Henry, along with Henry's dog Mudge and Annie's rabbit Snowball, enjoy a sparkling, wintry ice storm.