An old man wearing a brown robe is found wandering disoriented in the Arizona desert. He is miles away from any human habitation and has no memory of how he got to be there, or who he is. The only clue to his identity is the plan of a medieval monastery in his pocket. This mystery will catapult a group of young scientists back to the middle Ages into the heart of the Hundred Years' War. Imagine the risks of such a journey. Imagine the impossible. 'Timeline combines all the ingredients that make Crichton's books compulsive reading... a brilliantly imagined story' Iain Pears, Los Angeles Times 'Hollywood's favourite thriller writer evokes the experience of time travel superbly... a rollicking read' Observer 'A thrilling race against time' Express