Maddie and Mabel are sisters. Maddie and Mabel are friends. Best friends. Will their "best" be put to the test when a moving truck pulls up next door? A new friend is exciting at first. But soon it starts to feel like there is not enough room in the playing and laughing and secret-telling for more than two friends. Healing differences and growing friendships will take a lot of listening, curiosity, a little humor, and open hearts.