Palette of Secrets — Joan Fallon

Nancy Miller, a well-known artist, is approaching the end of her life. She has been persuaded by her agent to publish her memoirs, and Ana agrees to help, but the task is more difficult than either of them ever imagined. Talking about her life brings back memories that Nancy would rather forget, and it soon becomes obvious to Ana that there is a terrible secret in Nancy's past which, if revealed could ruin her reputation and devastate her family.