Descendants of the founder of the Guinness beer empire, they were the toast of 1920s high society, darlings of the press, with not a care in the world. But Felicity knows better. Sent to live with them as a child because her mother could no longer care for her, she grows up as the sisters' companion. Both an outsider and a part of the family, she witnesses the complex lives upstairs and downstairs, sees the compromises and sacrifices beneath the glamorous surface. Then, at a party one summer's evening, something happens that sends shock waves through the entire household.

Inspired by a remarkable true story and fascinating real events, The Glorious Guinness Girls is an unforgettable novel about the haves and have-nots, one that will make you ask if where you find yourself is where you truly belong.