“Make room in your beach bag for this mesmerizing book” (Patti Callahan Henry, New York Times bestselling author) about two estranged friends whose unexpected reconnection in the Hamptons forces them to finally confront the terrible event that drove them apart. When wealthy, impulsive Margot meets hardworking and steady Thea in the summer of 1967, the unlikely pair become fast friends, working alongside one another in a record store and spending every spare moment together. But after an unspeakable incident on one devastating August night, they don’t see one another for ten years…until Margot suddenly reappears in Thea’s life, begging for help and harboring more than one dangerous secret. Thea can’t bring herself to refuse her beloved friend—but she also knows she can’t fully trust her either. Unfulfilled as a housewife, Thea enjoys the dazzling sense of adventure Margot brings to her life, but will the truth of what happened to them that fateful summer ruin everything? Testing the