This special edition of "A Wrinkle in Time" includes a new essay that explores the science behind the fantasy. Rediscover one of the most beloved children's books of all time: "A Wrinkle in Time" by Madeleine L'Engle: Meg Murray, her little brother Charles Wallace, and their mother are having a midnight snack on a dark and stormy night when an unearthly stranger appears at their door. He claims to have been blown off course, and goes on to tell them that there is such a thing as a "tesseract," which, if you didn't know, is a wrinkle in time. Meg's father had been experimenting with time-travel when he suddenly disappeared. Will Meg, Charles Wallace, and their friend Calvin outwit the forces of evil as they search through space for their father?