In Spring Green, Wisconsin, spinster sisters Milly and Twiss have spent their lives listening to heartbeats and heartaches, nursing birds and the people who bring them back to health.   Back in the summer of 1947, Milly and Twiss knew nothing about trying to mend what had been accidentally broken. Milly was known as a great beauty with emerald eyes and Twiss was a brazen wild child who never wore a dress or did what she was told. That was the summer their golf pro father had an accident that cost him both his swing and his charm, and their mother, the daughter of a wealthy jeweler, finally admitted that their hardscrabble lives wouldn't change. It was the summer their priest, Father Rice, announced that God didn't exist and ran off to Mexico, and a boy named Asa finally caught Milly's eye. Most unforgettably, it was also the summer their cousin Bett came down from a town called Deadwater and changed the course of their lives forever.   Rebecca Rasmussen's masterful debut novel is full of hope and beauty, heartbreak and sacrifice, love and the power of sisterhood, offering wonderful surprises at every turn.