Katy Keller just moved into a new house two days ago. She is sad because she left all her friends behind and because it has rained at the new house ever since she and her mom moved in. Will she ever make new friends?

On the third day in the new house, Katy wakes up to see that the sun is shining! She goes outside to play with her new ball, but the ball goes over the picket fence in her backyard. That's when Katy meets Mrs. Bumbleberry, their landlady, and her little brown dog, Trina. There she plays with the dog and helps Mrs. Bumbleberry in the garden. But she still misses her friends. Will Mrs. B be able to help Katy feel better about her new home?

In this illustrated childrens story, one little girl who has just moved makes a new and unexpected friend and learns an important lesson about friendship.