"Ghost Wall" is a novel by author Sarah Moss that explores themes of history, identity, and the impact of the past on the present. The story follows a group of students and their teacher as they participate in an archaeological dig in Northumberland, England, where they uncover remnants of ancient Roman walls. The narrative is centered around the protagonist, Diane, who grapples with her family's troubled history and the complexities of her own identity. As the characters delve deeper into their excavation, they confront the haunting presence of the past, both in the landscape and within themselves. The novel examines the interplay between personal and collective histories, highlighting how the ghosts of the past can shape contemporary lives. Through its vivid imagery and thought-provoking themes, "Ghost Wall" invites readers to reflect on the significance of history in understanding one's self.