"The Forgotten Garden" is a novel by Kate Morton that intertwines the lives of three women across different time periods. The story begins in 1913 when a little girl is found abandoned on a ship to Australia, leading to a mystery that spans generations. The narrative shifts between the past and present, revealing secrets about the girl's identity and her connection to a hidden garden. Themes of love, loss, and the impact of family history are explored, making it a compelling tale of discovery and redemption. The novel highlights the significance of gardens as symbols of memory and growth.