The Mysteries is a version of the medieval English mystery plays first presented at London's National Theatre in 1977. The cycle of three plays tells the story of the Bible from the creation to the last judgement. It is based largely on the Wakefield cycle of plays (but incorporating some scenes from the York, Chester and Coventry canons) and adapted by poet Tony Harrison, working with the original cast, into three parts: Nativity, The Passion and Doomsday.