As spring comes to Scotland and the hills burst into life, a dance is planned for September. The invitations summon home the group of people Violet Aird has cared for most in her long life. The oldest, strongest and wisest of them all, she sees Alexa, her vulnerable granddaughter, find love for the first time, while the decision to send her little grandson away to school is driving parents Edmund and Virginia even further apart. Far from them all is Pandora, the glamorous, exciting girl who ran away twenty years before. All will converge on Scotland this September, bringing their stories with them.