Madeleine L'Engle (/ˈmædəlɪn ˈlɛŋɡəl/; November 29, 1918 – September 6, 2007; néeCamp) was an American writer best known for young-adult fiction, particularly theNewbery Medal-winning A Wrinkle in Time and its sequels: A Wind in the Door,National Book Award-winning A Swiftly Tilting Planet, Many Waters, and An Acceptable Time. Her works reflect both her Christian faith and her strong interest in modern science.