"Lost Children Archive" is a novel by Valeria Luiselli that explores themes of migration, family, and the impact of storytelling. The narrative follows a mother and her two children as they embark on a road trip across the United States to document the plight of migrant children at the U.S.-Mexico border. The story intertwines their journey with the history of Native American displacement and the broader implications of loss and memory. Through a blend of fiction and documentary elements, the novel highlights the complexities of human experience and the importance of bearing witness to the struggles of others.