From the award-winning New York Times bestselling author of Still Alice and Left Neglected, comes a heartfelt novel about an accidental friendship that gives a grieving mother a priceless gift: the ability to understand the thoughts of her eight-year-old autistic son and make sense of his brief life.Two women, each cast adrift by unforseen events in their lives, meet by accident on a Nantucket beach and are drawn into a friendship. Olivia is a young mother whose eight-year-old severely autistic son has recently died. Her marriage badly frayed by years of stress, she comes to the island in a trial separation to try and make sense of the tragedy of her Anthony’s short life. Beth, a stay-at-home mother of three, is also recently separated after discovering her husband’s long-term infidelity.