Brokenhearted, still mourning the loss of her husband, Heidi travels with Abbott, her troubled eight-year-old son, and Charlotte, her intolerably jaded sixteen-year-old niece, to spend the summer repairing their family home in a small village in the south of France. The rundown stone house in Provence has been in the family for generations and is the centre of a lovely myth. The family tells and retells stories of the magical properties entwined around the old stones - in many different ways, this house has healed broken hearts and made miracles happen. There, thousands of miles from home, Charlotte makes a shocking confession, and Heidi learns the truth about her mother's 'lost summer' - a time Heidi and her sister had learned not to ask about many years ago. As three generations collide with one another, with the neighbour next door, who seems to know all their family secrets, and with an enigmatic Frenchman, they'll journey through love, loss, and healing amid the lavender fields, warm winds, and the delicious pistou soup of Provence.