Timeline: A Novel

Timeline is a science fiction novel by American writer Michael Crichton, his twelfth under his own name and twenty-second overall, published in November 1999. It tells the story of a group of history students who travel to 14th-century France to rescue their professor. The book follows in Crichton's long history of combining science, technical details, and action in his books, this time addressing quantum and multiverse theory. The novel spawned Timeline Computer Entertainment, a computer game developer that created the Timeline PC game published by Eidos Interactive in 2000. Additionally, an eponymous film based on the book was released in 2003.