What is the theme of book missing by Catherine Macphail?

The central theme of Catherine MacPhail's "Missing" is the fragility of memory and the impact of trauma on identity and relationships. The novel explores how the past, particularly traumatic events that are suppressed or forgotten, can resurface and dramatically alter a person's present life and understanding of themselves. It also examines the complexities of family relationships and the lasting effects of secrets and lies on those bonds. The search for a missing person becomes a metaphor for the protagonist's search for her own lost identity and understanding of her past.