A warm June evening, a local tradition: the students of Nantucket High have gathered for a bonfire on the beach. But what begins as a graduation night celebration ends in tragedy after a horrible car crash leaves the driver of the car, Penny Alistair, dead, and her twin brother in a coma. The other passengers, Penny's boyfriend Jake and her friend Demeter, are physically unhurt - but the emotional damage is overwhelming, and questions linger about what happened before Penny took the wheel. As summer unfolds, startling truths are revealed about the survivors and their parents - secrets kept, promises broken, hearts betrayed. Elin Hilderbrand explores the power of community, family, and honesty, and proves that even from the ashes of sorrow, new love can still take flight.