Despite having jobs and men that they love, Tibby, Lena, Carmen, and Bridget know something is missing: the closeness that once sustained them. Carmen is a successful actress in New York, engaged to be married, but misses her friends. Lena finds solace in her art, teaching in Rhode Island, but still thinks of Kostos and the road she didn't take. Bridget lives with her longtime boyfriend, Eric, in San Francisco, and though a part of her wants to settle...

The author of the bestselling Sisterhood of the Traveling Pants series introduces the girls in a new sisterhood in this new series. Summer is a time to grow, and Polly, Joe, and Ama each sprout into young adulthood over the course of one summer. Ama, Jo, and Polly, three close friends from Bethesda, Maryland, spend the summer before ninth grade learning about themselves, their families, and the changing nature of their friendship.