From the author of The Adultery Club, What's Yours is Mine combines the beating heart of Jojo Moyes with the sparkling wit of Jane Fallon.A story of sisters who share just a little too much. Like a princess in a fairytale, Grace Hamilton has been showered with blessings: professional success, a happy marriage, and she even lives in a beautiful castle. But the only thing she really wants - her heart's desire - is the one thing she can never have. Her sister, the beautiful Susannah, has made a mess of her life. Like a reverse Midas, everything she touches turns sour. But Fate puts Grace's future in Susannah's hands, changing the balance of power between the sisters forever.