A sweeping tale of love and marriage from the number one bestselling author of Songs of Love and War . In an Anglo-Argentine community in Buenos Aires, two sisters – Isla and Audrey – spend their days playing tennis, riding horses and enjoying picnics in the summer heat. They have everything to look forward to, until one day everything changes … When two handsome brothers arrive, Audrey loses her heart to one of them. Louis Forrester, a troubled man and gifted pianist, composes a brilliant piece of music for her: the forget-me-not-sonata. Amidst their secret love affair, tragedy strikes and Audrey is faced with a heart-breaking dilemma. Will Audrey allow herself to marry a man supposedly so wrong for her?