How many secrets can one family keep?Amid preparations for Emerald Cove's extravagant Founders Day celebration and their own shared sweet sixteen, Isabelle Scott and Mirabelle Monroe are longing to break free from the tight constraints that come with being the daughters of a prominent public figure. When Izzie's estranged aunt, Zoe, breezes into town, the already uneasy family dynamic is turned on its head. Izzie's finally found her footing in Emerald Cove by leading the Social Butterflies, her school's prestigious club, and she has no interest in getting to know yet another long-lost family member. But Mira, who's on a mission to try new things and make new friends, is drawn to Izzie's artsy aunt. And when Mira meets a handsome, brooding painter, her entire perspective on life begins to shift.As tensions mount in Emerald Cove, Zoe's laid-back attitude appeals to both girls. But when she offers Izzie the chance of a lifetime, it's time to make a tough decision. What's more important: family or freedom?