A gorgeous novel of love, friendship, and a horse named Boo, from RNA prize-winning author Jojo Moyes. In a hidden corner of London, Henri Lachapelle is teaching his granddaughter and her horse to defy gravity, just as he had done in France, fifty years previously. But when disaster strikes, fourteen-year-old Sarah is left to fend for herself.

Forced to share a house with her charismatic ex-husband, her professional judgement called into question, lawyer Natasha Macauley's life seems to have gone awry. When her path crosses that of Sarah, she sees a chance to put things right. But she doesn't know that Sarah is keeping a secret, one that will change all their lives forever...