Once upon a seaside murder

When bookseller Summer Merriwether of Brigid's Island, NC, joins her local library's mystery panel discussion, she learns her late mother's deadly secret: she was somehow linked with an actual murder that rocked Brigid's Island thirty-five years ago, which became the inspiration for a popular novel. When the life of the book's author is threatened, Brigid finds the knowledge of it threatening her own life, as well.