Mattie Cook is a fictional character from the novel "The Year of the Flood" by author Margaret Atwood. She is a young woman living in a dystopian future where society has collapsed due to environmental disasters and genetic engineering. Mattie's story explores themes of survival, resilience, and the impact of human actions on the planet. In the narrative, Mattie navigates a world filled with challenges, including the threat of violence and the struggle for resources. Her character represents hope and adaptability, as she seeks to find her place in a chaotic environment. The novel highlights the importance of community and the interconnectedness of all living beings.