Six years ago, Polly Birdswell—drinking and deeply unhappy—made a decision that changed her life forever. Believing she could spare her young daughter a legacy of self-destruction, she left her husband and child and moved north to a coastal town in Maine. There, close to Bride Island, the beloved family retreat she considers her true home, she set about getting sober and remaking her life. Now Polly desperately wants seven-year-old Monroe back and is determined to prove—to herself especially—she’s a stable and loving mother. At the same time, a sudden decision to sell Bride Island unleashes a wave of family greed that endangers the island’s future. As Polly and her siblings try to claim ownership of what they love, they discover some things can never truly be owned, and Polly must again ask herself what she’s willing to relinquish.