Cate Kay knows how to craft a story. As the creator of a bestselling book trilogy that struck box office gold as a film series, she’s one of the most successful authors of her generation. The thing is, Cate Kay doesn’t really exist. She’s never attended author events or granted any interviews. Her real identity had been a closely guarded secret, until now.

The white-washed Italian villa is perfect. I thought it might feel odd, living in a stranger’s house for the summer, but as my husband and children swim in the infinity pool, I start to relax. And then, in the back of a wardrobe, I find something that shatters everything.... Sparkling green eyes, square jaw, lopsided smile. A young man with his arm around a beautiful woman. The picture is old and faded, but I’d recognize him anywhere. The man is my husband.

New England, 2022. Three years ago, single mother Mallory Dunne received the telephone call every parent dreads—her ten-year-old son, Sam, had been airlifted from summer camp with acute poisoning from a toxic death cap mushroom, leaving him fighting for his life. Now, searching for the donor kidney that will give her son a chance for a normal life, Mallory’s forced to confront two harrowing secrets from her past: her mother’s adoption from an infamous Irish orphanage in 1952, and her own all-consuming summer romance fourteen years earlier with her childhood best friend, Monk Adams.

Sybil Van Antwerp has throughout her life used letters to make sense of the world and her place in it. Most mornings, around half past ten, Sybil sits down to write letters—to her brother, to her best friend, to the president of the university who will not allow her to audit a class she desperately wants to take, to Joan Didion and Larry McMurtry to tell them what she thinks of their latest books, and to one person to whom she writes often yet never sends the letter.

Haiwen is buying bananas at a 99 Ranch Market in Los Angeles when he looks up and sees Suchi, his Suchi, for the first time in sixty years. To recently widowed Haiwen it feels like a second chance, but Suchi has only survived by refusing to look back. Suchi was seven when she first met Haiwen in their Shanghai neighborhood, drawn by the sound of his violin. Their childhood friendship blossomed into soul-deep love, but when Haiwen secretly enlisted in the Nationalist army in 1947 to save his brother from the draft, she was left with just his violin and a note: Forgive me.