All of Flora Topaz's life has had one purpose: to be the perfect younger sister. Her world is small, safe, and revolves entirely around Melissa. Then comes the summer in Carmel-by-the-Sea. It starts with a forgotten childhood album filled with photos of a boy she doesn't remember, and dreams of a tree carved with initials that aren't hers. The boy from the photos is now James - cynical, detached, and somehow tied to a secret her family buried years ago. As the line between her sister's love and control blurs, Flora is forced to question the only truth she's ever known: what if the person she trusted most is the one hiding the key to her past?