As spring arrives on Gardam Street, there are surprises in store for each Penderwick, from neighbor Nick Geiger's expected return from the war to Batty's new dog-walking business, but her plans to use her profits to surprise her family on her eleventh birthday go astray.

When twelve-year-old Rachel learns that her scoliosis has worsened and she will need to wear a back brace to keep her spine straight, she is devastated; afraid that she will not be able to play soccer, and terrified that she will not be able to hide her condition from her friends and classmates--but her mother is determined to spare her the spinal fusion surgery that she herself had as a teenager.