"A Long Walk to Water" is a novel by Linda Sue Park that tells the intertwined stories of two characters, Salva and Nya. Set in South Sudan, the book alternates between their perspectives, highlighting the challenges they face in a war-torn country. Salva is a young boy who becomes a refugee during the Second Sudanese Civil War, while Nya is a girl who must walk long distances daily to fetch water for her family. Their journeys illustrate the struggles for survival and the importance of water in their lives, ultimately conveying themes of hope and resilience.